Triticale Production Research Articles

Влияние на две системи на земеделие върху продуктивността и биохимичните качества на лимец и ръж

The experiment was conducted in the period 2019 - 2022 in the experimental field of the Institute of Agriculture in Karnobat. The aim of the research was to determine the influence of two farming systems - organic and conventional on the productivity and biochemical characteristics of rye (Secale cereale L.) and triticale (Triticum monococcum L.). The crop structure and grain yield of rye and einkorn grown in different farming systems depend not only on the studied factor, but also on weather conditions during the growing season of the crops. Organic farming of both crops promotes the formation of higher number of spike-bearing stems compared to conventional farming. We believe that this is a compensatory mechanism, especially under unfavorable climatic conditions. In the case of organically grown rye and einkorn, the plant height, spike length, number of grains in the spike, mass of the grain in the spike were lower than the conventional ones. For organically grown einkorn, despite differences in agro-meteorological conditions, spike length remained stable over the years, but was 18% shorter than that of conventional. The biochemical parameters of the crops differ according to the cultivation method, with conventional rye having a higher percentage of crude protein and lower ash values compared to organic. The lysine content is almost the same in both cultivation methods, but the percentage of crude fiber is higher in conventional farming. Despite lower crude protein levels, organically grown einkorn showed greater stability in ash and fiber content over the years, as well as higher lysine content.

Effect of Some Cutting Practices on Productivity of Triticale Under New Valley Conditions

Two field experiments were carried out at the Experimental Research Station, Desert Research Center, EL-Kharga Oasis, New Valley Governorate, during the two winter growing seasons of 2020/ 2021 and 2021/ 2022. The aim of the present study was to investigate the potentiality evaluation of grain and forage yields of triticale using some cutting practices under New Valley conditions. Based on the results obtained, if the purpose of planting triticale is to obtain green fodder, the study recommends performing the mowing process 80 days after planting and at a height of 15 cm from the surface of the ground, while if the purpose is to produce grains, the study recommends performing the mowing process at 50 days old from planting and at a height of 15 cm from the ground under New Valley conditions.

Influence of weather conditions and elements of harvest structure on yield of spring triticale cultivated in organic agriculture on southern chernozem of northern Kazakhstan

The article presents the results of research on the influence of weather conditions and organic fertilizers on the elements of the crop structure and the productivity of spring triticale. The studies were carried out in the LLP " SPCGF named after A. Barayev" on southern carbonate chernozems in 2018-2021. Triticale was cultivated according to the falow. Dry above-ground mass of sweet clover, sainfoin, alfalfa, brome and wheatgrass was introduced into the fallow field as organic fertilizers. An annual decrease in the grain yield of spring triticale was noted over the years of research from 1.95 t/ha in 2018 to 1.01 t/ha in 2021. The weight of 1000 grains did not change significantly over the years of the study and ranged from 37.0-45.7 g. The number of triticale grains per unit area gradually decreased over the years of the study from a maximum in 2018 of 6951 pieces/m2 to a minimum in 2021 of 2739 pcs/m2. Variants of application of aboveground biomass of various perennial grasses as organic fertilizers had an equivalent effect on the yield of triticale and crop structure elements in comparison with the control (aboveground biomass of sweet clover). A positive correlation was obtained between the yield of triticale and HTC (according to Selyaninov) for the months of June and August, where the dependence on the variants of the experiment changed from medium to high (with June r=0.62 ... 0.94, with August r=0.64 ... 0.80). A moderate correlation was obtained between the grain yield and the HTC (according to Selyaninov) for the period June-August (r=0.59…0.78). The influence of the mass of 1000 grains on the yield was ambiguous, in some cases the relationship was weak (r=-0.21 ... -0.27) in others - medium (r=0.33 ... 0.36). A positive correlation was established between the grain yield and the number of grains per 1 m2 (r=0.61…0.94).

The influence of microbial preparations on the biological activity of the rhizosphere and the productivity of winter triticale

The article presents the results on the effect of microbial preparations on the biological activity of the rhizosphere and the productivity of winter triticale. The microbiological and biochemical indicators of the biological activity of the winter triticale rhizosphere were studied against the background of the use of microbial preparations agrofil, mizorin, rhizobact of the RZHF brand and the FZhF brand. Data were revealed on the increase in the number of nitrogen-fixing microorganisms and actinomycetes when using agrofil, on the growth of micromycetes, actinomycetes, cellulose-decomposing microorganisms when treated with mizorin, the number of ammonifying microorganisms when treated with rhizobact preparations of the FZhF brand and the RZhF brand. Data on the beneficial effect of microbial preparations on the enzymatic pool of the winter triticale rhizosphere are presented. A high activity of phosphatase and peroxidase was noted when treated with the drug rhizobact brand FZhF, polyphenol oxidase and peroxidase when using the drug rhizobact brand RZHF, invertase and catalase when inoculated with the drug agrofil. Conclusions are formulated on the decrease in urease activity and the increase in indicators of productivity elements for all variants of the experiment.

The effect of fermented poultry manure on the yield and quality parameters of triticale (X Triticosecale Wittmack) cultivated organic way on acidic sandy soil

Triticale has been introduced into grain-growing fields and acidic sandy soils among cereals. Extensive breeding has resulted in the development of excellent triticale varieties. In our work, we used the triticale variety GK Maros as the crop, known for its high adaptability and cost- effectiveness in production. This variety's vigorous root and stem growth contributes to its tolerance to drought and heat shock. Our experiment was set up at the University of Nyíregyháza's study farm in 2023/2024, on 10 hectares. The experimental area has been under organic farming since 2015. The manure used in the experiment is a by-product of one of Europe's largest poultry breeding companies, Baromfi Coop Ltd. This granulated organic manure is successfully used in many areas of crop production. Our study aimed to investigate the impact of fermented poultry manure on triticale crops in a large-scale field experiment. Our study focused on overall triticale yield and quality parameters, including protein content, weight per hectare, and gluten content. Our findings show that using poultry manure on sandy soils for triticale production increased yield, although the first year did not show a significant increase. Our research is unique and innovative because it addresses a significant gap in knowledge. While there is extensive research showing the effectiveness of various organic fertilizers, these findings may not be applicable in organic farming, poor soil conditions, and extreme weather conditions. Our experiment aims to bridge this gap in knowledge.

THE INFLUENCE OF VARIETIES, FOLIAR FERTILIZATION AND BIOSTIMULATOR ON TRITICALE PRODUCTION IN NORD-WESTERN ROMANIA

Triticale (Triticosecale Wittmack) are a hybrid created by man by crossing two species, namely Triticum aestivum and Secale cereale. They adopted the good ability to adapt to climatic conditions, high resistance to plant diseases and the utilization of low fertility soils from Secale cereale and the high production capacity and high protein content from Triticum aestivum. In general, triticale is used in feeding animals in different forms (concentrated fodder, straw, silage, pasture), especially in feeding pigs and birds. More recently, it was discovered that this plant has several properties, being similar to wheat. It is also used in the bioethanol, alcohol, cellulose industry and even in aquaculture. Fertilization is one of the most important in the cultivation technology of this plant, ensuring production increases both quantitatively and qualitatively. The experiment is located in the year 2021-2022, in northwest Romania, in Livada, Satu Mare county on a typical preluvosol with an acidic reaction, with a pH of 5.19 in the arable layer. It is placed after the method of subdivided plots, being an experiment with three experimental factors, of which only two factors were studied, the variety and fertilization and their influence on triticale production. Due to the severe climatic conditions, with high temperatures and lack of precipitation, additional fertilization with foliar fertilizer and biostimulator recorded significantly negative differences in production. It was found that the best fertilization option during that testing period was the basic fertilization of the soil with complex fertilizers in the fall and nitrogen-based fertilizers in the springtime.

Response of nine triticale genotypes to different salt concentrations at the germination and early seedling stages.

Salinity stress poses a major challenge to agricultural productivity worldwide, and understanding their responses at the early growth stage is vital for devising strategies to cope with this stress. Therefore, to improve triticale productivity, this study investigated the salinity stress tolerance of different salt-tolerant triticale genotypes aiming to cultivate them on saline soils. To this end, salinity stress impacts on nine triticale genotypes, i.e., Zhongsi 1084, Gannong No. 2, Gannong No. 4, Shida No. 1, C6, C16, C23, C25 and C36 at germination and early seedling stages was evaluated. Each genotype was subjected to six treatments inducing control, 40, 80, 120, 160, and 200 mM NaCl treatments to study their effect on seedling and termination traits of the nine genotypes. Compared to the overall mean seedling vigor index, the seedling vigor index was higher in the genotypes Zhongsi 1084 and C6 (39% and 18.1%, respectively) and lower in Gannong No.2 (41%). Increasing NaCl concentrations negatively affected germination and seedling traits. Compared to other genotypes, Zhongsi 1084 had the highest mean germination rate, germination vigor index, germination percentage, mean daily germination and germination energy. It also showed the lowest relative salt injury. The relative salt injury was higher in the genotype Shida No. 1 than those in Gannong No. 2, Gannong No. 4, Shida No. 1, C16, and C36 genotypes. All genotypes exhibited desirable mean germination time except for line C6. High significant positive correlations were observed among germination rate, germination vigor index, germination percentage, mean daily germination, seedling vigor index, and root length. Principal component analysis (PCA) grouped the most desirable genotypes into two clusters. Our study determined salt stress tolerance of nine triticale genotypes at germination and early seedling stages. to select salt-tolerant genotypes that can be cultivated on saline soil or after salt irrigation.

Impact of agro-ecological conditions and fertilization on yield and quality of triticale on pseudogley soil

The results of the study of the influence of fertilization and calcification on the yield and yield components of winter triticale grown on low pH soil are presented in this paper. Five variants of fertilization were tested during three growing seasons. Trial treatments included different fertilization variants: V1-control, V2-N120, V3-N120P80K60, V4-N120P80K60 + 5 t ha- 1 of lime and V5-N120P80K60 + 5 t ha-1 of lime + 30 t ha-1 of manure. The results of the research showed that all yield components responded positively to the application of mineral nutrition by changing the production characteristics and grain quality. The variant with the combined application of NPK, lime and manure had the greatest positive effect on all tested parameters affecting triticale productivity. During the study, the highest yield of triticale 5.826 t ha-1 was obtained on the fertilization variant with the combined application of lime, manure and NPK fertilizers. The achieved increase in the grain yield of triticale was significant compared to the control and the NPK variant of fertilization. Highly significant positive dependencies were found between the grain yield with 1000-grain weight, and test weight and significant positive dependencies were found between 1000-grain weight and test weight. The research highlighted the impact of different fertilizer treatments on the yield and grain quality traits of winter triticale.

Sowing productivity and grain quality of winter triticale with the use of biological preparations

The article highlights the experimental results of research on the influence of pre-sowing seeds and crops treatment with biological preparations of fungicidal properties on crop productivity formation and the quality of winter triticale grain. The analysis of yield and quality of winter triticale grain showed that they changed depending on the type and methods of application of the researched preparations and weather conditions during the years of research. In 2021 when seeds were bacterised with «Melanoriz» and «Biozlak», there was a tendency to increase the yield level compared to the control by 0.4 and 0.3 t/ha respectively. Grain yield increment of 0.3–0.7 t/ha was obtained with the application of «Baktofit» biofungicide at the norms of 2.0–3.0 l/ha. A noticeable increase in yield occurred when spraying crops by «Baktofit» on the background of seed bacteriization with microbial preparations. In particular, for application 2.0, 2.5 and 3.0 l/ha of biofungicide on the background of seed treatment by «Biozlak» the yield increased by 0.9, 1.2 and 1.4 t/ha, on the background of seed treatment by «Melanoriz» – on 1.0, 1.3 and 1.7 t/ha according to the «Baktofit» norms. The dependence of winter triticale yield formation on the type and methods of application of the studied preparations was also observed in 2022 and 2023. However, in these years it slightly decreased, which was due to weather conditions and the active development of pathogenic microbiota in the sowings. The studied preparations had a significant impact on the formation of winter triticale grain quality indicators, especially when used in combination (seed treatment and application during the growing season). In particular, the highest weight of 1000 grains (by 1.5–2.2 g more than the control) and grain weight (by 31.4–39.8 g/l more than the control) were formed by the application of «Baktofit» against the background of seed bacterisation with «Melanoriz». The highest content of protein and starch in winter triticale grain was noted for spraying crops with «Baktofit» on the background of pre-sowing seed bacteriization with «Melanoriz», which exceeded the control by 0.6–1.5 % and 6.4–7.1 % respectively. Key words: productivity, grain quality, biological preparations, «Melanoriz», «Biozlak», «Baktofit», winter triticale.

Influence of mineral fertilizers and technological factors on the growth and productivity of winter triticale varieties

Purpose. To study the influence of varieties and technological methods on the winter triticale productivity formation grown in the right-bank forest-steppe of Ukraine. Methods. General scientific methods were used: hypothesis, experiment, `observation and data analysis, as well as field research, laboratory analysis, mathematical and statistical ones. Results. Overwintering of plants of winter triticale varieties ranged from 76.3 to 84.4% with a 2.9-8.1% difference between varieties. The Bozhich variety showed the highest overwintering rate (82.0-87.8%), while the Desyatynne variety showed the lowest one (72.5-78.9%). The vegetation period increased under the conditions of mineral fertilizers application: from 288 to 294 days when applying N45P45K45 + N60 at the II-IV stages of organogenesis and up to 299 days under application of the N45P45K45 + N90 (N30 III) + N30 (IV) + N30 (VII) fertilization system. Fertilization had a positive effect on the habit of the plants in the earing phase: the Desyatinne variety showed the greatest increase in height (from 19.4 to 32.4 cm) and was prone to lodging. The lowest level of yield (1.69-4.14 t/ha) was obtained on control options without fertilizer. The Bohodarske and Bozhich varieties demonstrated significantly higher levels of average productivity – 5.03-5.59 t/ha of grain with a slight predominance of the Bozhich variety. Desyatynne and Bohodarske varieties under the highest rate of seed sowing (6 million/ha) and, accordingly, the highest plant stand density formed the highest biological yield of grain. The Bozhich variety, thanks to its compensatory properties, increased indicators of individual plant productivity and better bushiness, ensured the highest biological yield of grain at the lowest seeding rate (3.5 million/ha). Conclusions. The correct selection of sowing rates and fertilization systems helps to increase the grain yield of various varieties of winter triticale. Bozhich and Bohodarske varieties showed the best yield results. The importance of agrotechnical methods optimization for each variety of winter triticale aimed at achieving the highest productivity level and thus the efficient cultivation has been confirmed.

Adaptability of winter triticale varieties on different backgrounds of mineral nutrient in the Middle Don conditions

The research was carried out in order to study the adaptive features of winter triticale varieties depending on the level of mineral nutrition in the soil and climatic conditions of the north-western zone of the Rostov region. The work was carried out on medium-sized southern carbonate chernozem in 2012-2019. The material for the study was 10 varieties of winter triticale of their own selection. The scheme of the experiment included 12 backgrounds of mineral nutrition. The crops were placed on a black steam, the seeding rate was 4 million germinating seeds per 1 he for each agrophone. The agro-climatic conditions during the years of the experiment were contrasting. On average, over the years of research, the most favorable regime for realizing the potential productivity of winter triticale was formed when it was sown at high agrophones (144 ...208 kg of a.s./1 he). At the same time, the average port yield reached the level of 8.11...8.35 t/he of grain. The productive capabilities of all varieties (except Caprice) were high, they amounted to 98...111%. Under contrasting conditions of mineral nutrition, Ataman Platov and Donslav varieties had an optimal ratio between the needs of the genotype and the level of the agrophone. At the same time, they formed the maximum yield in the experiment (8.67 and 8.37 t/he, respectively). The Aztec variety had a wider range of adaptive capabilities than other varieties, so it has a high resistance to a limited amount of fertilizers. The Hector variety was characterized by minimal resistance to nutrient deficiency. According to the optimal combination of parameters of ecological plasticity and stability, the varieties Kapral, Skolot and Donslav were distinguished. In production conditions, they are of some value, since they are able to produce a stable grain yield with various fluctuations in the level of mineral nutrition.

Agronomic feasibility of wheat and triticale cultivars in the semiarid of Minas Gerais State, Brazil

The production of winter cereals is becoming increasingly important in Brazil, largely due to advanced techniques that enable considerable qualitative and quantitative gains. This is due to plant breeding under different soil and climate conditions combined with proper management. The present study aims to assess the agronomic feasibility of growing wheat and triticale cultivars with two sowing times in the semiarid region of northern Minas Gerais State, Brazil. The experiment was conducted in 2018 at the Instituto de Ciências Agrárias (Institute of Agricultural Sciences) of Universidade Federal de Minas Gerais, Montes Claros campus. A randomized block design was used, with four replications and an 8 × 2 factorial arrangement consisting of eight genotypes (six wheat and two triticale cultivars) and two sowing times (April 21 and May 12, 2018). The irrigated production of wheat and triticale was agronomically feasible in the semi-arid region of Minas Gerais state and sowing time affected the main agronomic traits of interest of winter cereals. However, it is essential to study the economic feasibility of the crop. Sowing in April was the most indicated for wheat and triticale, with IPR Potyporã, IPR 144 and IPR 111 as the recommended cultivars.

Influence of seeding rates on productive qualities of winter triticale in the foothill zone conditions

The article presents the results of experimental studies of the influence of seeding rates on the productivity of winter triticale. Depending on the variety and seeding rate, field germination ranged from 63.4 to 75.7%. Higher field germination is characterised by the winter triticale variety Zimogor from 69.4 to 75.7%. Based on the results of the research, it can be concluded that the fineness of the spike and the weight of the grain depended on the seeding rate. Increase in seeding rate led to a reliable increase in productivity of all three varieties of winter triticale. The highest yield was obtained at a seeding rate of 5 million seeds/ha of germinated seeds, and the lowest - at a seeding rate of 3 million pieces/ha. Consequently, according to the results of our research, we can conclude that the difference in yield between the variants of the experiment was determined by the ear fineness and weight of grain in it (to a less extent), and mainly determined by the number of plants preserved at the time of harvesting. The highest productivity was characterised by the Zimogor variety with a seeding rate of 5 million seeds/ha. On average, its biological yield was 7.60 tonnes/ha. The yield of the Kapriz and Valentin 90 varieties was significantly lower by 1.46 t/ha and 0.70 t/ha, respectively.

The development of brown rust and the productivity of winter triticale with the use of biofungicide against the background of different doses of nitrogen fertilizers

The development of brown rust and the productivity of winter triticale with the use of biofungicide against the background of different doses of nitrogen fertilizers

Функциональная диагностика баланса элементов питания в растениях и урожайность зерна озимого тритикале при использовании водорастворимых удобрений

The method of functional diagnostics made it possible to identify the possibility of correcting the imbalance of plant nutrients and increasing the productivity of winter triticale when using water-soluble fertilizers that contain macro- and microelements, as well as biologically active substances and humic acids and help winter triticale plants maintain a homeostatic state and increase the stability and yield of grain culture, which on average for 3 years amounted to 4.25 t/ha and 4.26 t/ha, which is 38.90 and 39.0% higher than the control variant and 38.37-38.47% of biological yield data against the organomineral background. Keywords: BALANCE OF NUTRIENTS, METHOD OF FUNCTIONAL DIAGNOSTICS, PHYSIOLOGICAL PARAMETERS OF PLANTS, BIOLOGICAL PRODUCTIVITY

Ecological plasticity of winter triticale varieties in the conditions of the foothill zone of the North Caucasus

Relevance. The results of research on the identification of winter triticale varieties most adapted to the soil and climatic conditions of the foothill zone of the Central Caucasus are presented.Methods. The research was carried out in 2019–2021 in the fields of SCNIIGPSH VNC RAS on 8 varietal samples: TGI 24/1 (Russia), Almaz (Russia), Capral (Russia), Moderato (Poland), Hortenso (Poland), Grenado (Poland), Gor (Russia), Knyaz (Russia). For a comprehensive assessment and selection of valuable source material during selection for adaptability, a set of techniques was used to establish the reliability of the observed differences and obtain the necessary information about potential productivity and environmental plasticity.Results. The highest ecological plasticity was found in varieties Gor (bi = 0.7) and Hortenso and Grenado (bi = 0.6). According to the coefficient of stability in various growing conditions, the varieties Moderato and TGI 24/1 (S2d = 0.01) turned out to be the best. Varieties Gor, Hortenso and Grenado formed the highest average productivity of the ear over three years, which amounted to 3.6 and 3.3 g/ear, respectively. The share of the factors in the formation of yield was determined. The influence of vegetation conditions was 3.1%, of varietal characteristics — 54.1%. High resistance to environmental stress factors has been established in the varietyModerato, maximum compliance with the environmental conditions of the region — in varieties Gor (3.6), Hortenso (3.3) and Grenado (2.8). High resistance to environmental stress factors has been established in varieties Gor, Hortenso and Grenado, high stability of productivity is found in varieties Moderato and TGI 24/1. In the distinguished varietal samples the plant productivity index (PPI) was: 19,6; 16,4; 18,4; 15,0; 11,1 accordingly, according to the classification table, it corresponds to high productivity. In varieties Almaz, Capral and TGI 24/1, the indicators of the PPI (10.0; 9.8; 10.6) corresponded to the average productivity of winter triticale. The selected cultivars will be used in breeding programs, when creating winter triticale varieties for the foothill zone of the Central Caucasus.

WINTER TRITICALE OF BELARUSIAN AND RUSSIAN SELECTION FOR GREEN FODDER DURING THE BOOTING STAGE

The main reserve for increasing the production of fodder and its quality is the expansion of the assortment of fodder crops, the introduction of new promising species and varieties. One way to solve these problems could be the widespread introduction
 into production of winter triticale as a potential source of fodder. Therefore, the purpose of the scientific work was to study the yield, biometric features of plant development and nutritive value of green mass of winter triticale of Belarusian and Russian
 selection during the booting stage. As a result of research, winter triticale varieties of the Belarusian selection Slavko, Zveno, Kovcheg and variety sample 1/17 of the Russian selection with high foliage and yield of green mass were revealed. It has been
 established that winter triticale for green fodder has a longer and wider lamina, higher foliage of plants compared to diploid and tetraploid rye, as well as surpasses in the content of crude and digestible protein and crude fat in terms of the chemical composition of green mass in 1 kg of feed. All the studied varieties and variety samples of winter triticale of Belarusian and Russian selection can be used in the selection process and for green fodder from the beginning of the booting stage.

Optimizing water and nitrogen productivity of wheat and triticale across diverse production environments to improve the sustainability of baked products.

Wheat (Triticum aestivum L.) is a major global commodity and the primary source for baked products in agri-food supply chains. Consumers are increasingly demanding more nutritious food products with less environmental degradation, particularly related to water and fertilizer nitrogen (N) inputs. While triticale (× Triticosecale) is often referenced as having superior abiotic stress tolerance compared to wheat, few studies have compared crop productivity and resource use efficiencies under a range of N-and water-limited conditions. Because previous work has shown that blending wheat with triticale in a 40:60 ratio can yield acceptable and more nutritious baked products, we tested the hypothesis that increasing the use of triticale grain in the baking supply chain would reduce the environmental footprint for water and N fertilizer use. Using a dataset comprised of 37 site-years encompassing normal and stress-induced environments in California, we assessed yield, yield stability, and the efficiency of water and fertilizer N use for 67 and 17 commercial varieties of wheat and triticale, respectively. By identifying environments that favor one crop type over the other, we then quantified the sustainability implications of producing a mixed triticale-wheat flour at the regional scale. Results indicate that triticale outyielded wheat by 11% (p < 0.05) and 19% (p < 0.05) under average and N-limited conditions, respectively. However, wheat was 3% (p < 0.05) more productive in water-limited environments. Overall, triticale had greater yield stability and produced more grain per unit of water and N fertilizer inputs, especially in high-yielding environments. We estimate these differences could translate to regional N fertilizer savings (up to 555 Mg N or 166 CO2-eq kg ha−1) in a 40:60 blending scenario when wheat is sourced from water-limited and low-yielding fields and triticale from N-limited and high-yielding areas. Results suggest that optimizing the agronomic and environmental benefits of triticale would increase the overall resource use efficiency and sustainability of the agri-food system, although such a transition would require fundamental changes to the current system spanning producers, processors, and consumers.

ВПЛИВ СИСТЕМИ УДОБРЕННЯ НА ПРОДУКТИВНІСТЬ ТРИТИКАЛЕ ОЗИМОГО (TRITICOSECALE WITT.) В УМОВАХ ОСУШУВАНОГО ДЕРНОВО-ПІДЗОЛИСТОГО ҐРУНТУ ПОЛІССЯ

Topicality. Currently, the search for ways to improve the efficiency of triticale production on drained soils under conditions of climate change is a necessary and urgent task, since there is no scientific research to improve the technology of growing this agricultural crop under such conditions. Issues. In the Polissia of Ukraine, triticale can solve the problem of increasing grain production, considering the high adaptive properties to growing conditions and the genetic potential of yield and product quality. Aim. To study the formation peculiarities of winter triticale grain yield and quality at different levels of organomineral fertilization, and determine the most economically justified fertilizer system on drained sod-podzolic soil in conditions of moisture deficit. Methods. Stationary experiment was established; the grain quality was determined with laboratory research method, and experimental data were processed using the Microsoft Office Excel computer program. Results. Research conducted in 2016–2020 found that during the triticale grain formation and filling, the productive moisture reserves of drained sod-podzolic soil in the 0–100 cm layer decreased to a critical level of 60–80 mm (130–200 mm was accounted for by the period of growth resumption). Under conditions of low soil moisture, when using biological fertilizer system (pea-oat mix by-product), grain yield was 2.62 t/ha, and the increase compared to the absolute control was to 14.9 %. On the background of predecessor by-products, when mineral fertilizers were applied in the recommended rate for the zone (N60P60K60), grain yield increased to 3.65 t/ha. The high yield of triticale grain (4.14 t/ha) was established when using increased (intensive) rate of mineral fertilizer N90P90K90 with separate nitrogen application in three stages (N30 – at sowing, N30 – stem elongation, N30 – grain formation) combined with by-products. It was noted that indicators of winter triticale grain quality depended on the fertilizer system. Thousand grain weight was 46.5–50.2 g, the maximum val-ues were in the high agronomic background. Grain volume weight was within 674–682 g/l, the difference between the variants was insignificant. Grain protein content on fertilized backgrounds was 11.8–12.7 %, when the rate was increased to N90P90K90 – 13.1 %, which is 1.2 % more than on the control variant. Conclusions. It was determined that the highest level of profitability of winter triticale cultivation was 144 % when by-products were used in the biological fertilization system. The N90P90K90 fertilizer system combined with by-products produced the highest grain yield (4.14 t/ha) and protein content (13.1 %), but profitability of triticale cultivation decreased to 77 %. Studies have shown that mineral fertilizers increase the yield and improve the grain quality while reducing the profitability of growing the crop. Keywords: triticale, fertilizer system, improved land, moisture supply, productivity, grain quality, cost-effectiveness.

The influence of agroclimatic conditions and mineral fertilizers on the grain productivity of spring triticale in the conditions of Mari El Republic

The article presents data of 2019-2021 on the influence of agroclimatic conditions and doses of mineral fertilizers on the grain productivity of 13 varieties of spring triticale. A close dependence of the yield of triticale varieties on the reserves of productive moisture in the soil layer of 0-50 cm was established for the periods May-June (r = 0.73) and July-August (r = 0.85). Without the use of mineral fertilizers in arid conditions with reserves of productive moisture in 0-50 cm soil layer from 61 to 92 mm in the first half of the growing season, the grain productivity of spring triticale varieties was less than 3 t/ha. Under more favorable conditions of soil moistening (154 mm), the yield was almost 4 t/ha, which is a very good indicator for the conditions of Mari El Republic. Against the background of the application of mineral fertilizers in doses of N30-60P60K60, the grain productivity of varieties increased: Rovnya by 20-33 %, Saur ‒ 57-78 %, Savva ‒ 5-22 %, Timur ‒ 39-77 %, Dobroye ‒ 42-60 %, Zaozerye ‒ 38-40 %, KNIISKH 9 ‒ 16-40 %, KNIISKH 11 ‒ 12-30 %, KNIISKH 22 ‒ 22-28 %. On average, over three years of research, the varieties of spring triticale Dobroye (3.43 t/ha), Savva (3.12 t/ha) and KNIISKH 9 (3.26 t/ha) were characterized by a weak reaction to unfavorable soil moisture conditions and provided consistently high productivity of feed grain. The case of Dobroye variety, the most optimal variant for cultivating spring triticale in a simulated agrophytocenosis with a seeding rate of 4 million germinating seeds per hectare when applying N60P30K30 is established. On average for two years of the research the yield of this variety has reached 4.12 t/ha with a seeding rate of 4 million germinating seeds per hectare, which is 8 % higher than the control (3 million germinating seeds per hectare) and 22 % higher than in the variant with a seeding rate of 5 million pcs/ha.