Effect Of Foliar Fertilization Research Articles

Effect of foliar fertilization of nano urea and 2% urea on yield, nutrient uptake, nitrogen use efficiency and economics of maize (Zea mays L.)

Effect of foliar fertilization of nano urea and 2% urea on yield, nutrient uptake, nitrogen use efficiency and economics of maize (Zea mays L.)

Does foliar fertilization with zinc enhance physiological pro-cesses and biofortify grains in bean cultivars?

Beans are one of the staple grains of the Brazilian diet and are strategic in combating malnutrition, since their grains are rich in iron. However, zinc (Zn) is another relevant micronutrient in issues related to malnutrition, but little is known about it in bean grains. Thus, the objective of this study was to evaluate the effects of foliar fertilization with Zn on physiological and productive processes and grain biofortification in bean cultivars. The experiment was conducted in randomized blocks, in a 10x2 factorial scheme, with 10 bean cultivars (BRS FP403; BRS Campeiro; BRS Esplendor; BRS Esteio; BRS FC310; BRS FC402; BRS FC415; BRS FC409; BRS Estilo and BRS Pérola) fertilized via foliar or not with Zn, with four replicates. The yield components of beans, chlorophyll fluorescence, chlorophylls a, b and total, carotenoids and pigments in leaves and Zn content in leaves and grains were evaluated. The evaluated characteristics showed significant differences by the multivariate tests of Wilks' Lambda, Pillai's Trait, Hotelling-Lawley's Trait and Roy's Maximum Root. Foliar fertilization with zinc enhanced physiological processes and biofortified grains in bean cultivars, especially in the materials BRS FC409, BRS FC310, BRS FC402 and BRS Pérola.

Foliar Fertilization on BRRI dhan28 To Reduce Soil Application of Nitrogenous Fertilizer

The experiment was conducted at the research farm of Crop Physiology and Ecology Department, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during November 2019 to June 2020 to find out the effect of foliar fertilization on the performance of rice var. BRRI dhan28 and to estimate how much nitrogenous fertilizer can be saved by foliar fertilization without yield reduction. The experiment was laid out following split plot design with three replications. Four levels of foliar fertilization (F0 – No foliar fertilization, F1 – Foliar fertilization with 2% KNO3, F2 - Foliar fertilization with 2% DAP and F3 - Foliar fertilization with 1% American NPKS) were placed in the main plot treatments whereas three nitrogen fertilizer levels (N50 -50% of the recommended nitrogen fertilizer, N75 – 75% of the recommended nitrogen fertilizer and N100 – 100% of the recommended nitrogen fertilizer) were placed randomly in the sub-plots. Foliar fertilization with KNO3, DAP (Di-ammonium phosphate) and American NPKS significantly increased the grain yield (t ha−1) compare to control (F0) but KNO3 and American NPKS performed better than DAP. Foliar fertilization with KNO3 and American NPKS could save 25% of recommended nitrogen fertilizer but foliar fertilization with DAP could not save nitrogen fertilizer applied in soil for getting comparable grain yield found in F0N100. Foliar fertilization of KNO3 and American NPKS with recommended nitrogen fertilizer applied in soil could increase 11.8 and 12.5% grain yield, respectively compare to F0N100. Bangladesh Agron. J. 2024, 26(2): 77-85

Study on the Effect of Foliar Fertilizers on the Growth and Yield of V108 Heat-Tolerant Cucumber Variety

This study evaluates the efficacy of various foliar fertilizers on the growth and yield of the heat-tolerant cucumber variety TV108. The experimental design included six different foliar fertilizers and a control, with applications made weekly at a concentration of 1 mL per liter of water. Results showed that all foliar treatments significantly enhanced plant height compared to the control. Among these, Treatment T4 (ATONIK foliar fertilizer) demonstrated the most pronounced effect, achieving a main stem height of 216.57 cm by the 70th day, which was significantly higher than other treatments and the control. Treatment T4 also excelled in increasing stem diameter, with a final measurement of 1.48 cm, and in promoting both male and female flower formation. The fruit set rate was highest in Treatment T4, reaching 28.67% on day 56 and maintaining at 8.67% by day 70. This treatment also proved most effective in reducing the incidence of key diseases and pests, including powdery mildew, white mold, green worms, and yellow beetles. Regarding yield, Treatment T4 produced the highest individual fruit yield (2.32 kg/plant), actual yield (33.8 tons/ha), and theoretical yield (84.91 tons/ha). Additionally, it enhanced fruit quality, as indicated by the largest fruit length (15.22 cm), diameter (4.13 cm), and the highest Brix value (3.50%). These results substantiate that Treatment T4 is the most effective foliar fertilizer for enhancing both growth and quality of heat-tolerant cucumbers under experimental conditions.

Utilizing Principal Component Analysis to Assess the Effects of Complex Foliar Fertilizers Regarding Maize (Zea mays L.) Productivity

This study sought to determine the effects of foliar fertilization (FF) on both the quantity and quality of maize grains using principal component analysis (PCA). This chemometric approach enabled the selection of the best foliar treatment model for enhancing maize yield and quality. The results were analyzed via PCA, providing valuable insights into identifying the FF recipe with the greatest influence on maize grain production and quality. These field experiments were run during the time period 2020–2022 in the university’s experimental field. Seven experimental variants with three repetitions were tested, including a control group and various FF formulations labeled V1 through V7, each with different chemical compositions. FF applications were conducted during specific vegetative phases of the maize, respectively, in stages 15–16 BBCH (5–6 unfolded leaves) and 20–22 BBCH (10–12 unfolded leaves), with application rates varying from 2 to 6 Lha1 according to the product’s chemical properties. The application of FF treatments positively impacted both the production and quality of maize grains, as evidenced by specific quality indices such as moisture, protein, lipid, carbohydrate, fiber, and mineral content.

Efficiency of nitrogen fertilizers and biological preparations for winter rye on soddy-podzolic soil of different cultivation status

There was studied the influence of soddy-podzolic light loamy soil of different cultivation status on the agronomic efficiency of mineral fertilizers application with varying doses of nitrogen and biological preparations applied against the mineral background, in Pskov region. On moderately cultivated soil the linear dependence of grain yield on nitrogen rates was established. An increase in nitrogen doses from 20 to 80 kg a. i./ha resulted in obtaining an additional yield compared to the control variant, which is dependent on soil pH: yield growth by 6% to 42% was recorded on soil with pH of 5.6; from 8% to 73% – on soil with pH of 5.3; from 32% to 69% – on soil with pH of 5.2; from 66% to 175% – on soil with pH of 4.8. Payback from applied fertilizers rose with increasing doses of nitrogen. Soil properties also influenced the payback value. The maximum payback, 12 kg of grain per 1 kg of NPK, was recorded when N80P40K70 with split nitrogen fertilizing was applied to the soil with pH = 4.8. The introduction of biological products to the variant with mineral fertilizers (N20P40K70 + N20) contributed to an increase in grain yield : the introduction of microbiological preparation Bisolbifitis provided additional 7.55%; spraying of foliar fertilizers – 3.67%–8.78%. On the soil with long-term cultivation status the dependence of yield on the doses of applied nitrogen in the range from 20 to 80 kg a. i./ha looked like a polynomial. Maximum yield was obtained in different years when nitrogen was applied at rates from 40 and 60 kg a. i./ha. An increase in the dose of nitrogen from 20 to 40 kg was accompanied in 2019 by an increase in the yield of grain from 11.2% to 22.6%. An increase in nitrogen rates from 20 to 60 kg in 2020 and 2021 resulted in the growth of grain yield from 20% to 65%. Respectively. When the most effective doses of nitrogen were applied the payback from fertilizers was 5 kg of grain per 1 kg of NPK in 2019; 7 kg of grain per 1 kg of NPK in 2020; and 10 kg of grain per 1 kg of NPK in 2021. On the soil cultivated and improved for a long-term the effect of foliar fertilizers with biological preparations Kodamine B-Mo and K-Humate-Na was less significant (3–3.5%).

RENDIMIENTO Y CALIDAD FÍSICA DEL GRANO DE CAFÉ (Coffea arabica L.) VARIEDAD COSTA RICA 95

<p><strong>Background: </strong>Coffee is the second most consumed drink in the world, only after water. Quality characteristics are the most recurrent demands of consumers, which are of multifactorial origin and among which is agronomic management where soil nutrition or foliar nutrition of the plant is considered. <strong>Objective:</strong> To evaluate the yield and physical quality of the bean and cup of coffee (Coffea arabica L.) variety Costa Rica 95 by applying foliar fertilizer. <strong>Methodology: </strong>The evaluation was carried out in the La Laja community, municipality of Tlaltetela, Veracruz between 2018 and 2019. The age of the plantation used was four years and established with chalahuite shade (<em>Inga spuria</em> Humb. & Bonpl. ex Willd). The design used was a complete randomized block with two treatments (commercial control and treatment with foliar fertilization), with three repetitions each; the experimental unit consisted of a 300 m<sup>2</sup> plot and five coffee harvests were carried out, which were according to the number of flowerings during the 2018-2019 cycle. The physical evaluation was carried out according to the Official Mexican Standard NMX-F-162-SCFI-2008 and the NOM SCAA (2013). <strong>Results: </strong>The highest cherry yield and brix degrees were observed in the fertilized treatment with 12,897.8 kg ha<sup>-1</sup> and 20.06, respectively; in floats (waste) and snail (malformation), the highest weights were observed in the control treatment with 1,696.11 kg ha<sup>-1</sup> and 21.4 grams, respectively. The total sum of the sensory analysis was 81.3 and 85.2 for the treatments: control and fertilized, respectively. Higher numbers of grains were observed in sieves 19, 18 and 17 that are classified for the international scale. <strong>Implications: </strong>There is a positive effect of foliar fertilizer on the yield of cherry coffee and cup quality of Costa Rica coffee 95 and opens a range of possibilities to carry out a greater number of fertilization tests in the field, being able to compare an additional factor such as, for example, the climate (rain, drought, cold, heat, etc.). These studies should be carried out in the same area in which this experiment was carried out to compare whether the response shown is due solely to foliar fertilizer or there is an influence of climate, as well as management. It must be considered that the quality of coffee is multifactorial; in addition to environmental and genetic factors, there is management (nutrition, phytosanitary protection, pruning), harvest, among others. <strong>Conclusion: </strong>Foliar fertilization considerably improved the variables of interest evaluated in Costa Rica 95 coffee through the application of foliar fertilization, in addition to the fact that no primary or secondary defects were significantly present.</p>

Effect of Foliar Fertilizer and Irrigation Levels on Carrot Productivity

Effect of Foliar Fertilizer and Irrigation Levels on Carrot Productivity

Effect of foliar fertilization on Urospermum picroides, an indigenous plant of the traditional cretan-mediterranean diet

Urospermum picroides (L.) Scop. ex F. W. Schmidt (Asteraceae) is rich in secondary compounds, with antimicrobial and antioxidant activity, medicinal and health-promoting properties, however, like many other wild edible plants of the Mediterranean, it is still underutilised. This study focused on the pilot cultivation of U. picroides, under minimal irrigation and organic, integrated nutrient management (ΙΝΜ) fertilisation (by foliar application) in Crete, Greece, analysing its response in terms of yield characteristics and nutritional content. The foliar fertilisation treatments consisted of a control treatment (CO), a conventional water-soluble fertiliser (CV), a semi-organic nitrogen fertiliser (TR), a liquid semi-organic fertiliser (TF), and v) a mix of the conventional and semi-organic fertiliser (CF). Physiological characteristics (i.e., SPAD and Fv/Fm) were assessed during cultivation, while yield and leaf nutrient parameters were determined, at harvest. Treatments containing bioactive compounds (TF and CF) almost doubled the fresh and dry weight of U. picroides shoot compared to the control (CO) treatment (172% and 160%, respectively) which can be partially ascribed to the elevated physiological characteristics of the TF and CF fertilisation treatments. Even more, nitrogen rich treatments (CV and TR) improved yield characteristics compared to the control, but the effect was not as pronounced as that achieved by TF and CF semi-organic fertilization treatments. Our results indicate that the application of foliar semi-organic fertilization seems to be an effective alternative practice to increase photosynthetic capacity and concomitantly fresh and dry yield of U. picroides without compromising the nutritional profile of the edible product.

Influence of Foliar Application of Microelements on Yield and Yield Components of Spring Malting Barley

Barley is an economically important plant cultivated primarily for animal feed and in the brewing industry for the production of barley malt. Climate changes and an increase in grain demand result in a constant need to improve the volume and stability of cereal species yields and better use the potential of cultivars. In cereal production, an important aspect is the use of microelements, especially by foliar spraying. Microelements, as components or enzyme activators, play a significant role in plant growth and metabolic processes occurring in the cell. As a consequence, their availability is a factor determining plant development. The aim of this study was to determine the effect of foliar fertilization with selected microelements on the yield of two-row malting barley cultivars. In 2019–2021, a two-factor field experiment with barley was conducted in south-eastern Poland. The experimental factors were three spring barley cultivars (Baryłka, KWS Irina, and RGT Planet) of the brewing type and four single-component micronutrient fertilizers containing copper (Cu), manganese (Mn), molybdenum (Mo), and zinc (Zn). The foliar application of microelements resulted in improvements in selected elements of the yield structure and an increase in grain yield, and the effect depended on the fertilization applied. The highest grain yield was obtained from plots where fertilizer with Mo or Zn was used. Barley plants sprayed with Mo fertilizer developed the longest spikes and were characterized by the highest number of productive tillers per plant. The foliar application of Zn resulted in the formation of the highest number of spikes per unit area and grain uniformity. The RGT Planet cultivar was characterized by higher values of the measured parameters compared to Baryłka and KWS Irina.

Efficiency of biological products and mineral fertilizers application on winter garlic crops in the conditions of the Right-Bank Forest-Steppe of Ukraine

The article presents the results of three years of research on the effectiveness of the influence of the biological product Phytohelp, mineral fertiliser Drip Fert N15P5K30+МЕ and bioadhesive Liposam on the structure of the winter garlic yield of the Lyubasha variety under drip irrigation. The relevance of the research is due to the search for new approaches to the development of technological methods for growing winter garlic, taking into account the specific conditions of unstable moisture in the Forest-Steppe. The purpose of the article is to establish the optimal doses and the ratio between them to achieve an increase in the quality and yield of winter garlic. The study was conducted on the experimental field of the Department of Vegetable Growing of the National Assessed Contribution of Ukraine of the Uman National University of Horticulture on podzolised heavy loamy black soil in 2017-2019. As a result, it was proved that in the conditions of the Right-Bank Forest-Steppe of Ukraine on podzolic chernozem under drip irrigation, a higher yield was obtained in plots with the combined use of the biological product Phytohelp at a rate of 1-2 l/ha, mineral fertiliser Drip Fert N15P5K30+МЕ and bioadhesive Liposam at a rate of 1 l/ha. This resulted in an increase of 9.0-10.6 t/ha compared to the control variant, respectively. Using the biopreparation Phytohelp and bioadhesive Liposam at a rate of 2/1 and 1/1 l/ha, a yield of 16.6-17.1 t/ha was obtained, where the increase to the control was 7.7-8.2 t/ha. The effect of foliar fertilisation with Drip Fert N15P5K30+ME (4 g/2 l of water or 0.5 c/ha) on the yield of winter garlic was determined. The increase to the control was 1.6%. The results of this study may be useful for agricultural enterprises and farmers who grow garlic and other crops

The effects of foliar fertilization on maize inbred lines

The effects of foliar fertilization on maize inbred lines

Влияние некорневых обработок органическими препаратами на качество и урожайность продукции томата

In modern vegetable growing, much attention is paid to environmental protection, especially to control of water regime, quality and quantity of fertilizers used. The use of preparations approved for organic vegetable growing contributes to the reduction of the pesticide pollution and the enrichment of vegetable products with bioelements. The research was carried out on the territory of the V.I. Edelstein National Center for Horticulture and Vegetable Growing in a spring film greenhouse. The aim of the research is to study the effect of foliar fertilization with preparations promising for organic farming on the yield, biochemical and elemental composition of tomato fruits. Three tomato hybrids and organic preparations Rostovit and Aminozol were studied. Standard methods and GOST standards were used in the research. The quality of the products was determined in the Central Research Institute of the Russian State Agrarian University – Moscow Timiryazev Agricultural Academy and the Federal Research Center for Vegetable Growing. As a result of the research, the positive reaction of tomatoes to the preparations approved for organic vegetable growing and containing brewer’s yeast extracts, macro- and microelements, amino acids was established, at the same time, the species-specific reaction of hybrids was noted. The triple foliar fertilization with aqueous solutions of Aminozol and Rostovit increased the yield of the Chernysh F1 hybrid by 31% and 28%, respectively, in comparison with the control varieties. The studied preparations had a positive effect on the biochemical and elemental composition of the fruits of the studied tomato hybrids: potassium (K), ascorbic acid (vitamin C), iron (Fe), copper (Si).

Spraying Technology and Foliar Application Result in a Smooth Layer of the Spray: a Literature Review

Using of foliar fertilizer application is an important issue in many crops plantation in different countries. Various studies have been conducted on this method, especially with fruits and horticulture. Few studies were performed on essential crops such as maize compared to the orchards. Concerning crops, most of these studies were performed using foliar spraying with phosphorus, and potassium, and a few attempts were carried out with foliar fertilizer during the season at different concentrations starting from the first stage of the plant. The foliar application may be sprayed with a suitable concentrate depending on the type of crop planted, growth stage, leaves age, and physicochemical properties of the sprayed liquid. As reported in the current literature, there are previous studies on this application with insufficient knowledge of mechanisms and factors governing the nutrient uptake by leaves that still need to be improved. The insufficient information about the effect of foliar fertilizer at different application rates is one of the reasons that the study focused on it, which was probably the leading cause of sometimes controversial effects with foliar fertilizers being reported. Most previous studies revealed that is necessary to apply foliar fertilizer on the plant leaves at a proper concentration and application rate compatible with the age of the crop applied. The results also indicated that a suitable concentration of foliar fertilizer no doubt leads to improved fertilizer effectiveness and can even increase plant growth activity, especially when spraying with modern technology. For an optimum both of the crop vegetative growth and yield response to foliar fertilization, it is possible to diagnose the optimum growth stage of the plant and leaf age for the starting of foliar fertilizer application related to metrological conditions such as the air temperature, and relative humidity at the time of spraying. It is necessary to recommend the crop growth stage before foliar application at a known application rate and concentration to a crop to achieve maximum efficiency at low cost as possible.

THE INFLUENCE OF FOLIAR FERTILIZATION ON THE YIELD AND QUALITY TO SOYBEAN

This experiment investigated the effect of foliar fertilization on yield components, yield and protein content to 75 soybean genotypes from four maturity groups. The experiment took place within the Soybean Breeding Laboratory at Research and Development Station for Agriculture Turda (RDSA Turda) over the course of two years (2020, 2021). The experimental design was a complete randomized block with three replications in which three variants of fertilization were analyzed, and the application of foliar fertilizers was carried out in different stages of soybean vegetation. In general, if we refer to the yield, it is observed that most of the genotypes that reacted favorably to the application of foliar fertilization are with the Ff1 variant, on the other hand, for the protein content, it seems that the Ff2 foliar fertilization variant causes an increase in protein in most of the genotypes that they had a favorable reaction to foliar fertilization. Regarding the component elements of yield, the application of foliar fertilization variants does not greatly contribute to increasing their number, being directly related to the genotype but also the interaction between environment x genotype.

Effect of Foliar Fertilization on the Physiological Parameters, Yield and Quality Indices of the Winter Wheat

The main purpose of the paper is to highlight the impact of foliar fertilization during the various growth stages of winter wheat and its role in achieving high-quality and superior production. Foliar fertilizers play a crucial role in calibrating and forming active growth intervals correlated with productivity factors. The research was conducted over a two-year period using the Andrada winter wheat variety. It involved the application of four different foliar fertilizers: basic mineral fertilization, FoliMAX Orange (two treatments and three treatments), FoliMAX CerealsMIX (two treatments and three treatments), and Microfert U (three treatments). Depending on the treatment, two or three applications of foliar with foliar fertilizers were carried out at various stages of winter wheat development, including pre-flowering and grain formation. The research method used to record physiological parameters was non-destructive (the leaves were not detached from the plant) and was based on the use of the CIRAS-3 foliar gas analyzer, which simultaneously determines several physiological and environmental indicators. As an indicator read by the device, photosynthesis was chosen for leaf temperature and leaf transpiration, correlated with production and quality indices. By applying the foliar fertilizer treatments to the wheat culture, we managed to increase production and improve the quality. After using different foliar fertilizers, the assimilation and physiological parameters had higher values of over 30 μmolm−2·s−1. Foliar fertilization applied to the winter wheat variety resulted in an average production increase between 450 and 765 kg·ha−1 and quality indices with a protein percentage between 11.5 and 12.6%, gluten content between 21.5 to 24.0% and the Zeleny index between 29.0 and 39.0%, and the mass of one thousand grains was between 48.0 and 50.5 g.

UPAYA PENINGKATAN PRODUKSI TANAMAN TOMAT (Solanum lycopersicum M.) DENGAN APLIKASI PUPUK DAUN DAN PUPUK KCL

Fertilization is a critical element in agricultural practices because plants need adequate and balanced nutrition to grow and develop well. Common obstacles faced in growing tomato plants, such as lack of nutrition or low yields. The aim of this research was to determine the effect of foliar fertilizer and KCl fertilizer doses on increasing the growth and production of tomato plants. The research was conducted from February to April 2022 in Jugo Village, Sekaran District, Lamongan Regency. This research used a factorial Randomized Block Design (RAK) procedure with two treatment factors. The first factor is the type of foliar fertilizer, consisting of 3 levels, including Growmore, Mamigro, and Gandasil D foliar fertilizer. The second factor, namely the dose of KCl fertilizer, consists of 3 levels, including no fertilizer (control), 100 kg/ha, and 150 kg/ha. Ha. The conclusion in this research is that there is an interaction between the type of foliar fertilizer treatment and the dose of KCl fertilizer on the parameters of plant height, number of leaves and number of branches at age. Treatments for various types of foliar fertilizer differ significantly in the parameters of number of fruit per plant, fruit diameter per plant, fruit weight per plant, and fruit weight per hectare. Mamigro leaf fertilizer treatment and a 150 kg dose of KCl fertilizer was the best treatment combination.

Impact of Foliar Spray with Gibberellic Acid GA3 and Nauta Fertilizer on the Some Vital and Mineral Components of Three Cultivars of Grape (Vitis vinifera L.)

The University of Mosul’s Department of Horticulture and Landscape Design / College of Agriculture and Forestry vineyard hosted this study. During the growing season 2022, to study the effects of foliar fertilization with Nauta fertilizer containing amino acids and seaweed extracts in three concentrations (0, 250, and 500 mg l-1) and foliar spraying with gibberellic acid in three concentrations (0, 50, and 100 mg l-1) on three table grape varieties, Halwany Lebanese, Kamali, and Black Khalili, and their interactions and effects on some It is possible to summarize the most important results obtained: According to this study, Halwany surpassed Kamali and Black Khalili in petiole iron concentration and grape variety superiority. Halwany and Kamali were over the Black Khalili variety in the average concentration of potassium in the petioles, just as the grape varieties were over the Halwany variety in the average protein and phosphorus concentrations. The Black Khalili variety also outperformed the Halwany and Kamali varieties in zinc content and carbohydrate percentage. In leaf petioles, nitrogen content increased significantly after foliar application of Nauta organic fertilizer at 250 mg l-1. In addition to the superiority of foliar spraying at 500 mg l-1 of the same fertilizer in main stem carbohydrates, protein, phosphorus, and iron in leaf petioles. Foliar spraying with gibberellic acid, especially at a concentration of 100 mg l-1, led to a significant increase in the average of protein and the concentration of phosphorus, potassium, zinc and iron in the leaf petioles.

ZnO nanoparticles improve bioactive compounds, enzymatic activity and zinc concentration in grapevine

The low availability of micronutrients in the soil leads to a deficit of these micronutrients in crops, causing malnutrition in the population. Approximately 3,000 million people in the world have health problems caused by inadequate Zn intake. Agronomic biofortification is a way to produce crops rich in micronutrients and mitigate malnutrition problems. Nano biofortification with zinc oxide nanoparticles (NPs-ZnO) is a good strategy to mitigate and increase the nutritional content of the edible part of the plant. The aim was to determine the effect of foliar spraying with NPs-ZnO on yield and biosynthesis of enzymatic and non-enzymatic antioxidant compounds and their bioaccumulation. In this study, the effect of foliar fertilization with NPs-ZnO: 0, 25, 50, 75, and 100 mg L-1, on yield, the content of bioactive compounds and their bioaccumulation in grapevine berries was evaluated. The distribution of the treatments was under a completely randomized design, each treatment consisted of 10 plants, each representing one experimental unit. The treatments were applied by foliar sprays at fruit formation, in veraison and 15 days before harvest. Foliar spraying with NPs-ZnO positively modifies yield, the content of bioactive compounds, and their bioaccumulation. Doses of 50-75 mg L-1 of NPs-ZnO increased crop yield, and oenological parameters. In addition, all doses evaluated modified enzymatic and non-enzymatic antioxidants, and improving Zn concentration in grapevine berries. Foliar spraying of NPs-ZnO is an alternative to improve grape quality and yield, in addition to enriching its nutritional and antioxidant content.

INFLUENCE OF WINTER WHEAT PLANTS’ FOLIAR ERTILIZATION ON CROP’S YIELD AND QUALITY

The article presents the results of experimental studies on the effect of foliar fertilization of winter wheat plants of sort Amandus with complex water-soluble fertilizers NAIS grain and Accelerator Micro on the background of N100Р58К100 on grain yield and quality. The research was conducted at Normagro LLC, Berdychiv district, Zhitomir region. The experiment included fertilizing winter wheat plants at the IV-V stages of crop organogenesis. The research was conducted on gray forest loamy soils. The use of these fertilizers proved to be quite effective. Compared with the background, the addition of conventional fertilizer with the studied fertilizers contributed to the increase in ear length and increase in the number of ears in the ear. The effect of using Акселератор Мікро was especially noticeable. The addition of background doses of fertilizers to the studied foliar fertilizers in our experiment affected the mass fraction of the crop, as evidenced by the data. At fertilizer N100P58K100 – received a crop – 6,08 t/ha, at N100P58K100 + «NAIS grain», 1,5 l/ha – productivity was 6,56 t/ha, at N100P58K100 + «Accelerator Micro» 1,5 kg/ha – 6,78 t/ha. In addition, the effect of combining the usual doses of fertilizers with foliar fertilization on the formation of the structure of the ear of wheat was studied. Among the studied parameters were the weight of one ear, the weight of 1000 grains, the nature of the grain. The weight of the ear with fertilizer N100R58K100 was –1,12 g, with N100R58K100 + «NAIS grain» (1,5 l/ha) – 1,17 g, and with N100P58K100 + «Accelerator Micro» (1,5 kg/ha) – 1,21 g, weight of 1000 grains – 42,3 g, 45,6 g, 48,9 g and nature of grain – 735 g/l, 745 g/l, 751 g/l respectively. The effect of the use of these fertilizers on the quality of the grain seed, in particular on the content of protein, gluten, ash and glassiness of the grain, was positive. A significant increase was obtained with the use of «Accelerator Micro», compared with «NAIS grain».