Soil Plots Research Articles

Legacy of Prior Management of Cropland after Afforestation with Populus x euroamericana (Dode) Guinier: Effects on Soil Respiration

Afforestation is a good strategy for climate change mitigation through increasing carbon stocks. This study determined changes in soil respiration (SR) brought about by the afforestation of high quality agricultural land in a temperate-humid region (Galicia, NW Spain), identified the variables that explain the observed changes and determined the main factors regulating SR temporal variation. Paired plots of fertile soils (cropped vs. afforested plots) were established in two similar areas (Pontevea and Laraño) where afforestation with Populus x euroamericana (Dode) Guinier was carried out in the same year. Different management practices and crop rotations were used (maize–pasture, Laraño and maize–fallow, Pontevea). The SR was measured in situ with a CO2 static chamber every 15 days (every month in winter) for 16 months; soil temperature (Ts) and soil moisture content (W) were also measured. In both areas, significant differences (p < 0.05) in SR between paired plots were related to soil organic C content and SR was mainly influenced by Ts, except during the summer period where SR fluctuations were accompanied by W fluctuations. These findings show that growing pasture crops on high quality land can prevent the loss of soil N and C and probably improve the greenhouse gas balance in the system.

Effect of Bio-fertilizer and Gibberellic Acid on Growth and Yield of Baby Corn (Zea mays, Poaceae)

The field experiment was conducted during Zaid season 2021-22 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P). The soil of the experiment plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.2), low in organic carbon (0.48%), available N (171.48 kg/ha), available P (13.6 kg/ha) and available K (215.4 kg/ha). The treatments consisted of three levels of Gibberellic acid 50, 100 and 150 ppm of foliar application and (20 g and 10g per kg litre of water) and two levels of Bio fertilizer {Azospirillum seed inoculation (10 and 20 g/kg of seed) and Azotobacter seed inoculation (10 and 20 g/kg of seed)} respectively and Azospirillum + Azotobacter 10 g/kg each gibberellic acid 150 ppm treatment combined. The experiment was laid out in randomized block design with nine treatments and were replicated thrice. Results defined those maximum values of plant height (185.29 cm), dry weight (90.42 g/plant), number of cobs per plant (2.64), cob length (19.76 cm), cob weight with husk (48.54 g/cob) and cob weight without husk (12.51 g/cob) cob yield with husk (11.04 t/ ha), cob yield without husk (4.15 t/ha) were recorded with application of Azotobacter 10g/kg + Azospirillum 10g/kg + Gibberellic acid 150 ppm (T9) treatment combination.

Effect of Sulphur and Zinc on Growth and Yield of Black Gram (Vigna mungo L.)

A field experiment was conducted during zaidseason of 2022 at the crop research farm, Department of Agronomy, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Science, Prayagraj (U.P) India. To study Response of Sulphur and zinc on growth and yield of Zaid blackgram. The experimental treatments consists of sulphur concentrations 20,25,30,kg/ha And zinc 5,10,15,kg/ha . There were 10 treatments each replicated thrice. The soil of each experiment plot was sandy loamy, slightly alkaline (pH 7.8), low in organic corbon (0.35%) available N(163.42kg/ha), available P(21.96 kg/ha)and available K (256.48 kg/ha). Results revealed that at higher plant height (39.80 cm), number of branches/plant(5.00), number of Nodules/plant(41.50), plant dry weight (4.85g/plant), pods/plant (37.36), seeds/plant (7.00), test weight (37.14g/plant), seed yield (13.63t/ha), stover yield (19.68t/ha), and harvet index (40.79 %). were significantly influenced with application of sulphur 30kg/ha +zinc 15kg/ha. Higher gross returns (INR 107670/ha), higher net returns (INR 74538.11/ha) and higher B:C (2.24) were also recorded in –treatment 9(sulphur 30kg/ha+zinc15kg/ha).

Influence of Foliar Application of Zinc on Growth and Yield in Different Varieties of Rice (Oryza sativa L.) and Yield Validation Using SPSS Model

Agronomy Department, Farm, Sam Higginbottom University of Agriculture, Technology, and Sciences, Prayagraj (U.P.), India. to research the effects of zinc treatment on rice (Oryza sativa L.) growth and yield. The medications include the verities MTU-7029, BPT -5204, and RNR15048, as well as zinc concentrations of 0.2%, 0.3%, and 0.4%. The pH of the soil in the experimental plot was 7.8, the texture was sandy loamy, and the amount of organic carbon was low (0.35%). The larger plant height (117.68 cm), greater number of tillers per hill (13.64), Application of RNR-15048 + ZnSo4 - 0.4% significantly increased plant dry weight (55.47 g/plant), number of panicles/hill (10.01), number of grains/panicle (141.37), 1000 seed weight (22.27 gm), grain yield (6.43 t/ha), and stove yield (12.11 t/ha). Higher B:C ratio (2.37) and higher gross return (INR 1,52,860/ha), net return (INR 1,07,531/ha), and net return (INR 1,07,531/ha) were also noted in treatment-9 (RNR-15048 + ZnSo4 - 0.4%).

Effect of Foliar Application of Micronutrients on Growth and Yield of Sesame (Sesamum indicum)

The field experiment was carried out during kharif season of 2022, at crop research farm of Department of Agronomy at Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj in North Eastern plains of Eastern Uttar Pradesh. The soil of the experiment plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.1), low in organic carbon (0.82%), available N (291.24 kg/ha), available P (32.85 kg/ha) and available K (264.78 kg/ha). The treatments included three sources (Zinc), (Boron), (Iron) levels and one control plot, respectively. Randomized block design comprising of 9 treatments with different combination of zinc, boron along with iron which are replicated thrice and T9 is control. The experimental results revealed that application of Zinc 100 ppm + Boron 100 ppm + iron 100 ppm recorded maximum plant height (114.80 cm), Plant dry weight (16.29 g/plant), number of capsules per plant (43.77), Seeds/capsules (69.73), Seed yield (1.10 t/ha), Stover yield (2.45 t/ha).

The contribution rate of stem‐leaf and root of alfalfa (Medicago sativa L.) to sediment and runoff reduction

AbstractSeasonal changes in ground canopy and root density induced by the growth of alfalfa (Medicago sativa L.) may strongly influence the variation in runoff and sediment across alfalfa growth stages. In this study, eight alfalfa plots with and without ground canopy and two bare soil plots (CK) were used to investigate the effect of alfalfa growth on the regulation of runoff and sediment during one growing season (seedling stage, S1; budding stage, S2; flowering stage, S3; podding stage, S4). The experiments involved four slope gradients of 8.6%, 17.6%, 26.8%, and 36.4% and one rainfall intensity of 90 mm h−1. The time to runoff initiation (TR), runoff volume (RV), and sediment yield (SY) were recorded, and runoff reduction benefits (RRBs) and sediment reduction benefits (SRBs) were calculated. The results have shown that TR was delayed with the growth of alfalfa and advanced with an increasing slope gradient. From S1 to S4, compared with CK, alfalfa grassland reduced the runoff by 10.36% to 85.80% and the sediment by 15.34% to 94.48%. The root systems of alfalfa reduced the runoff by 1.29% to 34.86% and the sediment by 0.87% to 49.97%. RV and SY decreased exponentially with aboveground biomass and root density during the growing season. The SRBs were greater than the RRBs, and the contribution of stem leaves for SRBs and RRBs was higher than that for roots under the same growing seasons and slope gradient. This study deepens our understanding of herbaceous plants in regulating runoff and sediment at different growth stages and clarifies the contribution of vegetation components to soil and water loss control.

Effect of Poultry Manure, Vermicompost and Zinc on Growth and Yield of Rice

The field experiment was carried out during rabi 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P), India. The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.1), low in organic carbon (0.36 %), available N (171.48 kg/ha), available P (15.2 kg/ha) and available K (232.5 kg/ha). The experiment was designed in Randomized Block Design, with nine treatments, including a control, replicated three times over the course of a year. The treatments consists of T1: Poultry manure 4t/ha+ zinc 15kg/ha, T2: Poultry manure 4t/ha + zinc 20kg/ha, T3: Poultry manure 4t/ha + zinc 30kg/ha, T4: Vermicompost 12t/ha + zinc15kg/ha, T5: Vermicompost 12t/ha + zinc 20kg/ha, T6: Vermicompost 12t/ha + zinc 30kg/ha, T7: Poultry manure 50% + vermicompost 50% + zinc15kg/ha, T8: Poultry manure 50% + vermicompost 50% + zinc 20kg/ha, T9: Poultry manure 50% + vermicompost 50% + zinc 30kg/ha are used. The application of Poultry manure 50% + vermicompost 50% + zinc 20kg/ha recorded significantly higher Plant height (41.07 cm), Number of tillers per plant (14.33), Plant dry weight (19.05 g/plant), Significantly maximum number of panicles/plant (13.00), grains/panicle (84.00), Test weight (20.01 g), grain yield (5.98 t/ha), Haulm yield (9.44 t/ha), Harvest index (38.79 %) were recorded with the treatment of Poultry manure 50% + vermicompost 50% + zinc 20kg/ha.
 Higher gross returns (Rs. 2,98,907.00/ha), net return (Rs. 2,15,897.00/ha) and benefit cost ratio (2.59) was obtained in the treatment of Poultry manure 50% + vermicompost 50% + zinc 20kg/ha.

Soil change and broadleaf tree growth 10 years after wood ash and brash co-application to a clearfelled lowland conifer site in Britain

Abstract Wood ash use, to raise pH and replace nutrients lost through forest harvesting, is well regulated in Scandinavia and Canada, but not yet in the UK. This experiment applied granulated wood ash from mixed tree thinnings to a lowland clay mineral soil at ~2.3 t ha−1 dose rate, after clearfell of western hemlock (Tsuga heterophylla (Raf.) Sarg.). With brash (~56 t ha−1 dry weight) as N resource, a 4 × 4 matrix of ash only, ash + brash, brash only and control treatments were planted with oak seedlings (Quercus robur L.). Soil survey was undertaken before ash application and followed over 10 years. By year 2, self-sown grass was dominant in the control and ash plots, and birch (Betula pendula, Roth.) was present across all treatments by year 4. In year 10, oak height was 25–29 per cent greater in brash and ash + brash plots, with DBH increased >20 per cent over the controls. Birch DBH was greater by 30 per cent in brash plots but was over 50 per cent in the ash + brash plots. Foliar concentrations of Ca, K and P significantly increased with ash addition in both oak and birch, as Al, Mn, Fe and Cr decreased. Soil pH (CaCl2) was reduced in all treatments in year 2 likely due to nitrification, during organic matter and needle breakdown, but recovered 8 years later to be significantly highest in ash and ash + brash plots. Mg, K, Ca, Na, Ba and S concentrations were higher in ash plot soils, but soil organic matter, total carbon and total nitrogen declined due to mineralization and uptake by grass and trees. Wood ash addition did not significantly increase heavy metal concentrations in either soil or foliage. In the long term, wood ash aided soil recovery and promoted tree growth in combination with the brash – it could be beneficial for tree growth after thinning/coppicing on heavy mineral soils, with the prerequisite of an existing ground cover. Aim To quantify the effects of wood ash and brash addition over time to soils and tree growth after conifer clearfelling on a lowland clay soil site.

Effect of Micronutrients on Growth and Yield of Sorghum (Sorghum bicolor L.)

The field experiment was conducted during Zaid season 2022 at experimental field of Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology & Sciences, Prayagraj and Uttar Pradesh, India. The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH7.3), low in organic carbon (0.48%), available nitrogen (230 kg/ha), available phosphorus (13.60 kg/ha) and available potassium (215.4 kg/ha). The treatments consist of Zinc soil application (2.5,5 kg/ha) and Zinc foliar application (0.3, 0.6%) along Boron (0.3%) and Iron (0.3%) along with control. The experiment was layout in Randomized Block Design with ten treatments each replicated thrice. Higher plant height (185.19cm), maximum plant dry weight (92.86 g) and the yield attributes namely test weight (15.50g), grains/earhead (1297.67), grain yield (3.03t/ha), stover yield (4.16t/ha) was with treatment 9 [Zinc 2.5ka/ha + Zinc 0.3% + B 0.3% + Fe 0.3%].

Алгоритм расчета нормативной урожайности зерновых культур с привлечением разнородных аграрно-почвенных данных (на примере почвенного дата-центра ФГБУ ГЦАС Ростовский)

An algorithm has been developed for calculating the standard yield of grain crops for a subsystem operating on the basis of the soil data center of the Federal State Budgetary Institution SCAS "Rostovsky" (http://datacenter.don-plodorodie.ru). The features of this algorithm lie in the use for calculation of data obtained from the actual information of the agrochemical survey, as well as from archival sources (digitized large-scale soil maps, reports of soil surveys). The semantic part of soil maps is translated into quantitative indicators, which allows using this information to find correction factors and further calculate standard yields based on them. The algorithm implemented in the subsystem "Calculation of the normative yield of grain crops" is actively used to compile the reporting documentation of the organization. The functionality of the soil data center allows you to generate a report on request. The soil data center of the Federal State Budgetary Institution SCAS "Rostovsky" is part of the project of the information system "Soil-Geographic Database of Russia". Keywords: NORMATIVE YIELD, SOIL DATA CENTER, ELEMENTARY SOIL AND LAND PLOTS

Effect of Molybdenum and Zinc on Growth and Yield Attributes of Zaid Groundnut (Arachis hypogaea L.)

The field experiment was conducted during Zaid season April-july 2022 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P). The aim was to study the effect of soil application of molybdenum and foliar application of zinc on growth and yield of groundnut. The treatments consisted of 3 levels of molybdenum (0.5,1.5,2.0 kg/ha) and zinc (0.25,0.50,0.75% foliar application). The experiment was laid out in randomized block design with ten treatments and were replicated thrice. The soil of experimental plot was sandy loamy in texture, nearly neutral in soil reaction (pH 7.2), low in organic carbon (0.48%) available N (171.48 kg/ha), available P (13.6 kg/ha), available K (215.4 kg/ha), available zinc (0.76ppm) and available Sulphur (12.41ppm). Application of 1.5kg/ha molybdenum with zinc 0.5% treatment-6 recorded Maximum plant height (54.50 cm), highest plant dry weight (54.14g), no. of nodules per plant (47), seed index (42.08 g), no. of pods per plant (23), no. of kernels per pod (2), seed yield (2985 kg/ha), harvest index (43.19%). Minimum parameters were recorded in treatment-10 control plot which is application of recommended dose of fertilizers 20:40:60 kg/ha NPK.

Influence of Boron, Zinc and Iron on Growth and Yield of Summer Maize (Zea mays L.)

A field trial was conducted on the crop maize in the during Zaid season of 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P). The trai was carried out to research “Influence of boron, zinc and iron on growth and yield of summer maize. The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH 6.9), available N (270.81 kg/ha), available P (11.5 kg/ha) and available K (215.9 kg/ha). The trail was laid out in Randomized Block Design with nine treatments each replicated thrice on the basis of one year experimentation.The results showed that the foliar application of boron 0.6% along with 25kg/ha of zinc and 25kg/ha of iron (treatment no. 8) was recorded significantly maximum plant height (205.79 cm), Plant dry weight (179.67 g/plant), Crop growth rate (28.11 g/m2/day) No. of leaves/plant (13.93), No. of cob/plant(2.07), No. of row/cob (14.67), No. of seeds/row (26.00), Test weight (238.0 g), Grain yield (5.40 t/ha), Straw yield (9.60 t/ha), Harvest index (35.97), Gross returns (122400.0 INR/ha), Net return (77210.0 INR/ha) and benefit cost ratio (1.71) as compared to other treatments.

Productivity of sugar sorgo in a mix with forage beans in modeling various conditions of mineral nutrition

The studies were carried out in 2020-2021. in the conditions of a field experiment at the hospital of the FSBSI "Omsk ASC". The purpose of the research is to study the influence of various conditions of mineral nutrition on the productivity of sugar sorghum mixed with fodder beans in the conditions of the south of Western Siberia. The scheme of the experiment involved the study of the following options: soil supply with mobile phosphorus (factor A) - medium (50 ... 100 mg / kg according to F.V. Chirikov, background 0), increased (100 ... 120 mg / kg, background I and 140 ... mg/kg, background II), high (150...200 mg/kg, background III); phosphorus fertilizer (factor B) - P0, P60; nitrogen fertilizer (factor C) - N0, N30, N60. The soil of the experimental plot was characterized by a neutral pHwater of the arable layer with a humus content of 7.01 ... 7.24%, a low supply of nitrate nitrogen in a layer of 0 0.4 m, an average supply of mobile phosphorus and a high supply of exchangeable potassium in a layer of 0 0.2 m on control. Growing drought-resistant crops allows efficient use of atmospheric and soil moisture resources. The use of mineral fertilizers also contributes to its economical use per unit of crop, significantly reducing the value of the water consumption coefficient. The ratio of the legume and bluegrass components in the grass mixture to a certain extent depended on the conditions of mineral nutrition. With an increase in the level of phosphorus supply, there was a tendency to increase the share of legumes, the use of nitrogen mineral fertilizers increased the competitive ability of sugar sorghum. Optimization of the conditions of mineral nutrition provided up to 5.68 thousand feed units/ha and 28.29 t/ha of green mass at 3.10 thousand feed units/ha and 15.38 t/ha of green mass in the control variant. The collection of more than 0.5 ton of digestible protein and 60 GJ/ha of metabolic energy in the crop of a legume-sorghum mixture is a good contribution to the system of forage production in the forest-steppe of Western Siberia.

Corn yield and the content of mobile phosphorus in typical chernozem under different methods of basic tillagewith the use of chemicalization andbiologization means

Studies have been carried out to study the effectiveness methods of basic tillage with the use of chemicalization and biologization means on the yield of corn and the content of mobile phosphorus in the arable (0-25 cm) layer of typical chernozem underlain by pebbles. Object of research: the soil of the experimental plot is a typical heavy loamy, medium-thick, low-humus chernozem, underlain by pebbles with an average content of humus (according to Tyurin) in the arable layer - 3.6%, mobile phosphorus and potassium (according to Machigin) - 15 and 300 mg/ kg respectively. The reaction of the soil environment (by the potentiometric method) is neutral (рНKCl= 7.1). Corn for grain (hybrid Pioneer 9678) was placed in a grain-row crop rotation with alternating crops: wintering peas - winter wheat - corn for grain - spring oats. In the scheme of the experiment, the following variants were studied: reception of the main tillage (factor A) - plowing to a depth of 25 ... 30 cm, disking to a depth of 10 ... 15 cm, chiselling to a depth of 30 ... 40 cm; fertilizers and a biological product according to the aftereffect of green manure (factor B) - without fertilizers and a biological product by aftereffect of green manure, fertilizer (diammophoska, ammonium nitrate) and a biological product (V417) by aftereffect of green manure (spring rape): N120P60K60 + green manure, V417 + green manure, N120P60K60 + V417 + green manure. On average, for two years, among the methods of the main tillage during disking, the highest yield of corn for grain was obtained - 4.75 t/ha with the content of mobile phosphorus in the arable soil layer - 21 mg/kg (63 kg/ha). According to the effect of chemicalization and biologization means for different soil tillages, the use of the biological product V417 by aftereffect of green manure (spring rapeseed) against the background of disking provided the highest average yield of corn for two years - 5.10 t/ha with a content of mobile phosphorus of 21 mg/kg (63 kg/ha). On average, over two years, the highest content of mobile phosphorus - 26 mg / kg (78 kg / ha) with its balance - 60 kg / ha, with an intensity of 236%, was facilitated by disking with the combined use of fertilizers and the biological product V417 according by aftereffect of green manure. At the same time, the parameters of the variants during plowing and chiselling were exceeded by 1.5 ... 2 times. In addition, an increase in the content of mobile phosphorus in the arable layer of soil from a low (11...15 mg/kg) to an average level (16...30 mg/kg) was achieved.

Effect of Nitrogen and Iron on Growth and Yield of Foxtail Millet (Setaria italica L.)

The field experiment was conducted during Zaid season 2022 at the experimental field of Crop Research Farm, Department of Agronomy, Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj and Uttar Pradesh, India. The soil of the experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.3), low in organic carbon (0.48%), available nitrogen (230 kg/ha), available phosphorus (13.60 kg/ha) and available potassium (215.4 kg/ha). The treatments consist of 3 levels of Nitrogen (40 Kg, 50 Kg and 60 Kg/ ha) as a basal application and Iron (0.2, 0.4 and 0.6 %) as foliar spray along with control. The experiment was layout in Randomized Block Design with Ten treatments each replicated thrice. Growth attributes namely higher plant height (101.57cm), maximum dry weight/plant (14.83 g), more number of tillers/hill (8.87) and yield attributes namely higher panicle length (18.61 cm), grains/panicle (1389.30), grain yield (1.79 t/ha) and straw yield (2.53 t/ha) were observed with application of nitrogen 60 Kg/ha and iron 0.6%.

<i>In situ</i> determination of crop productivity in metal-contaminated, remediated, and reclaimed soils: Significance of ecotoxicological data on assessing soil quality

Soil quality assessment is generally performed using a combination of physical, chemical, and biological indicators in a target area, and the indicator measurement data are subjected to sequential processes such as scoring, weighting, and indexing. The selection of indicators is one of the important processes, and their actual application should be carefully considered. The techniques of soil remediation can affect the measurement of traditional biological indicators. In the present study, we aimed to evaluate the applicability of ecotoxicological indicators for soil quality assessment. The paddy and upland soil plots were constructed using contaminated-, remediated-, and reclaimed-soils on field, and the soil quality indicators were measured. We designed a soil quality assessment system including ecotoxicological indicators, and the soil quality index (SQI) was calculated using indicator measurement data of each plot. The SQI with or without ecotoxicological indicators was directly compared with <i>in situ</i> crop productivity. We found that relatively higher SQI can be obtained with ecotoxicological indicators than that without them, and soil quality indexing with ecotoxicological indicators showed high correlations with <i>in situ</i> crop productivity in paddy and upland soil plots.

ВЛИЯНИЕ РАЗЛИЧНЫХ ВИДОВ УДОБРЕНИЯ НА УРОЖАЙНОСТЬ И КАЧЕСТВЕННЫЕ ПОКАЗАТЕЛИ ВИНОГРАДА И ВИНА СОРТА ШАРДОНЕ

The research was carried out in order to study the effect of various foliar fertilizers on the productivity of grapes, the quality of the must and the taste characteristics of wine products. The work was carried out in 2019-2021 in Anapo-Taman climatic subzone of Krasnodar Territory. The scheme of the experiment included the following options: without fertilizers (spraying with water) - control; Gumel lux 0.1 kg/ha; Filloton 1.0 l/ha; Agrumax 1.5 l/ha. Spraying was carried out three times in the following phases: “loosening of inflorescences”, after the end of flowering and in the “growth of berries” phase. Objects of study: Chardonnay grapes, its must and wine material. The bushes were formed according to the two-armed Kazenava cordon system, the planting scheme was 3.0 m × 1.5 m. The soil of the experimental plot was soddy-calcareous, powerful, low-humus, light-clay granulometric composition, formed on tertiary saline clays. Fertility is below average. The supply of nitrate nitrogen and mobile phosphorus is low, and that of potassium is high. The treatment of Chardonnay grapes with the studied preparations had a different effect on its productivity and the technological qualities of the must. The highest yield was noted in the variants treated with Agrumax and Gumel Lux fertilizers - 9.83 and 9.50 kg/plant. The excess of their productivity over the control was statistically significant and amounted to 3.13 and 2.80 kg/plant, respectively, with an HSR05 of 2.7 kg/plant. The effect of the drug Filloton on the yield of grapes was much weaker and manifested itself only in the form of a trend. Treatment with organomineral fertilizer Gumel lux contributed to an increase in the sugar content of the juice by 10.4% and the preservation in the must of the acidity optimal for dry white wines - 7.0 g/dm3. Wine materials in the variants with the use of Phylloton and Gumel Lux fertilizers were the most extractive in the experiment, which was reflected in their taste qualities, which received estimates of 7.82 and 7.73 points, respectively. According to the ratio of yield/quality of wine material, foliar top dressing with Gumel Lux provided optimal results.

Effect of Boron on Growth and Yield of Sweet Corn (Zea mays L. Saccharata) Varieties

At the Department of Agronomy's Crop Research Farm, SHUATS, Prayagraj, a field experiment was carried out in the month of Zaid 2022. (U.P). The soil in the experimental plot had a sandy loam texture, a pH of 7.1 that was almost neutral, a low level of organic carbon (0.36%), and low availability of the nutrients N, P, K (171.48 kg/ha, 15.2 kg/ha, and 232.5 kg/ha, respectively). Ten treatments, each replicated three times, were used in the experiment, which was set up using a randomised block design over the course of a year. The treatments which are T1: Sugar-75 + 0.1 % boron foliar application, T2: Sugar-75 + 0.2 % boron foliar application, T3: Sugar-75 + 0.3 % boron foliar application, T4: Madhuri + 0.1 % boron foliar application, T5: Madhuri + 0.2 % boron foliar application, T6: Madhuri + 0.3 % boron foliar application, T7: Misthi + 0.1 % boron foliar application, T8: Misthi + 0.2 % boron foliar application, T9: Misthi + 0.3 % boron foliar application, T10: Control - N:P:K-120:60:40(kg/ha) are used. The results showed that treatment T9-Misthi + 0.3% boron foliar application was recorded significantly higher growth parameters like Plant height (175.5 cm), Plant dry weight (141.6 g/plant) at 80 DAS and highest Crop growth rate (22.1 g/m2/day) at 60-80 DAS. However, yield attributes and yield parameters like No. of Cobs/plant (1.81), No. of Grains/Cob (617.7), No. of Rows/cob (14.37), Seed index (68.4 g), cob length (18.5 cm), Grain yield (9.5 t/ha), Stover yield (15.4 t/ha) were recorded with the treatment T9-Misthi+ 0.3 % boron foliar application.

Micromorphological soil assessment in abandoned quarry dumps of the Central Caucasus, Russia

This study compared the micromorphological and agrochemical metrics in soils from the quarry dumps and zonal soils, the Central Caucasus. Soil micromorphological investigations are important tool for evaluation of soil dynamics after anthropogenic impacts on terrestrial ecosystems. The results showed that the carbon content in the primary soil of the sand and gravel quarries was lower than that in the reference soil. The differences detected were statistically significant for both the Urvan plot soils (t = 11.95; p = 0.000) and the Progress plot soils (t = 18.73; p = 0.000). In contrast, in the quarry with clay bottom substrate (Gerpegezh), no significant difference was found between the reference and postmine soils. The reference soil around the sand and gravel quarries was slightly more acidic than the primary soil. In the clay quarry, the primary soil was more acidic with a strong acidic value, while the reference soil was neutral. The difference of nutrients (P, K, NH4+, NO3-) between the primary and reference soils were negligible. The only exception was the NO3- content in the reference soil of Progress settlement, where it was significantly higher (t = 4.19; p = 0.002) than in the original soil of the site. No difference was observed for the mineral component of the primary soil. Investigation of key zonal soils of the region. Zonal Caucasus soils: Phaeozem Gleiyc, Phaeozem and Umbric Retisol are different in terms of micro texture. Thus, Phaeozem Gleiyc characterizes by microstructure composed by primary angular mineral forms. Phaeozem and Retisol demonstrated formation of biogenic structure with alteration of mineral particles. Data obtained show that rapid self revegetation of the quarries results in initialization of primary soil formation and transformation of the soil microstructure and organization on the micro level.

Monitoring of Fertility and Ecotoxicological Condition of Reference Sites of Sod-Podzolic Soils of the Ivanovo Region

The results of agrochemical and ecotoxicological studies of the arable layer of reference plots of sod-podzolic soils for agricultural purposes of the Ivanovo region are presented, which were carried out in order to establish the level of fertility according to the main agrochemical indicators, the content of sulfur and trace elements, ecotoxicological state – by gross and mobile forms of heavy metals and arsenic. The deterioration of such indicators of soil fertility as the availability of ammonium and nitrate nitrogen, mobile potassium, the amount of absorbed bases and the capacity of cation exchange has been established. An increase in the content of mobile phosphorus, exchangeable calcium, magnesium and other absorbed bases was noted with an unchanged content of organic matter. The fertility of the studied soils was assessed by calculating the soil-ecological index. The provision of soils with trace elements and mobile sulfur has been established. The content of gross and mobile forms of metals in soils, with the exception of arsenic in the soils of individual sites, did not exceed the maximum permissible concentrations and clarks. The studied soils are slightly polluted and are not dangerous for cultivated plants and human health. According to the Pearson and Spearman correlation coefficients, the characters of the mutual influence of metabolic acidity, the content of organic matter and the granulometric composition of soils with the content of available forms of trace elements, gross and mobile forms of metals and arsenic are established.