scholarly journals Impact of the depth of fertilizer localization on the nutrient regime of Luvic Chernic Phaozem and yield of spring barley

2021 ◽  
pp. 22-30
Author(s):  
V. M. Smychenko ◽  
◽  
M. M. Miroshnychenko ◽  
Keyword(s):  
Spring Barley ◽  
Soil Surface ◽  
Weather Conditions ◽  
Growing Season ◽  
Mineral Nitrogen ◽  
Local Application ◽  
Mineral Fertilizers ◽  
Hydrothermal Conditions ◽  
Nutrient Regime ◽  
The Impact

The purpose of the research is to determine the impact of the depth of local application of mineral fertilizers on the nutrient content in the arable layer of soil and the yield of spring barley. The studies were carried out during 2018 - 2020 in a temporary small-plot experiment. Soil – chernozem podzolized loamy (Luvic Chernic Phaeozem). The application of N60P60K60 in the form of nitroammophoska or a mixture of ammophos, ammonium nitrate and potassium chloride was compared to a depth of 10-12 cm and 20-22 cm from the soil surface. The row spacing of barley crops was 15 cm; the fertilizer tape was placed at a distance of 4-5 cm away from the row. Mixed soil samples were taken from fertilizer tapes twice during the growing season of barley (in the first half of the growing season and after harvesting). The weather conditions were quite contrasting: in 2018 it was dry at the beginning of the growing season and during grain ripening, in 2019 was dry only during the formation of grain, and in 2020 - rather humid and relatively cool during almost the entire growing season. At the beginning of the growing season of barley in 2018, the highest content of mineral nitrogen in the soil was found with a shallow location of the fertilizers, but in 2019-2020 - in case fertilizer tapes at 20-22 cm from the surface. Location of fertilizer at a depth of 20-22 cm also provided a higher level of mobile phosphorus and potassium in the soil than applying at a depth of 10-12 cm. After the barley harvest, the highest accumulation of mineral nitrogen in the soil in 2018 was found with shallow application and in 2019-2020 - with deeper application. A tendency of more accumulation of chlorophyll in plants was observed with an increase in the depth of fertilization. Local application of fertilizers gave a reliable increase in yield in all variants of the experiment. However, the increase was twice as high when placing the fertilizer tape was at a depth of 20-22 cm as at a depth of 10-12 cm. Application of nitroammophoska to a depth of 20-22 cm was more effective than mixtures of simple and complex fertilizers. It was concluded that the hydrothermal conditions of the growing season and the depth of the location of fertilizers mutually affect the nutrient regime of the soil. The advantage of deep fertilization is more significant under insufficient moisture.

scholarly journals The Influence of Organic Fertilizers on the Abundance of Soil Microorganism Communities, Agrochemical Indicators, and Yield in East Lithuanian Light Soils

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2648
Author(s):  
Diana Sivojiene ◽  
Audrius Kacergius ◽  
Eugenija Baksiene ◽  
Aiste Maseviciene ◽  
Lina Zickiene
Keyword(s):  
Soil Microorganisms ◽  
Spring Barley ◽  
Poultry Manure ◽  
Mineral Nitrogen ◽  
Community Diversity ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Long Term Study ◽  
First Results ◽  
The Impact

Soil microorganisms are one of the main indicators used for assessing the stability of the soil ecosystem, the metabolism in the soil, and its fertility. The most important are the active soil microorganisms and the influence of the fertilizer applied to the soil on the abundance of these microorganisms. We aimed to investigate how the applied organic fertilizers affect the most active soil microorganisms, which determine the soil fertility and stability. Fungi, yeast-like fungi abundance, and abundance of three physiological groups of bacteria were analyzed: non-symbiotic diazotrophic, organotrophic, and mineral nitrogen assimilating. This study is valuable because relatively few similar studies have been performed on infertile Lithuanian soils. The first results of a long-term study were obtained. The results show the effect of fertilizers on trends in the changes of microorganism community diversity; however, more analysis is needed to assess the impact of organic fertilizers on the most active soil microorganisms. Therefore, the investigation was continued. The results of the 2020 quantitative analysis of culturable soil microorganisms show that the highest abundance of organotrophic and non-symbiotic diazotrophic bacteria were recorded during the summer season. Meanwhile, the abundance of bacteria assimilating mineral nitrogen and fungi was higher in autumn. Agrochemical parameters were determined at the beginning of the experiment. The highest concentration of Nmin in the soil was determined after fertilizing the plants with the combination of granulated poultry manure (N170) + biological substance Azotobacter spp. The yield of barley was calculated. It was found that the highest yield of spring barley in 2020 was obtained by fertilizing the experimental field with organic in combination with mineral fertilizers.

scholarly journals The Typicality of Hydrothermal Conditions of the Forest Steppe and Their Influence on the Productivity of Crops

2020 ◽  
Vol 76 (3) ◽  
pp. 84-95
Author(s):  
Andrii Butenko ◽  
Dmytrо Litvinov ◽  
Natalia Borys ◽  
Olena Litvinova ◽  
Ihor Masyk ◽  
...  
Keyword(s):  
Air Temperature ◽  
Spring Barley ◽  
Weather Conditions ◽  
Maize Yield ◽  
Vegetation Period ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Hydrothermal Conditions ◽  
The Impact

Analysis of changes in hydrothermal conditions of growing crops in the forest steppe zone of Ukraine over a period of 2004–2016 showed that by the average monthly air temperature more than a half of the years under study and by rainfall nearly a third of the researched period differed significantly from the average long-term value and were close to extreme weather. Statistical analysis of long-term indicators of the air temperature regime is evidence of a steady trend towards an increase in average annual air temperature with significant fluctuations in indices in separate periods from 7.9 ± 2.9 to 10.0 ± 2.5oС and a decrease in the amount and instability of natural moisture entry. The influence of weather conditions on the formation of productivity of spiked cereals (winter and spring wheat, spring barley) and maize was assessed at the current agrometeorological risks in the forest steppe of Ukraine. Based on the correlation-regression analysis, mathematical models were created that reproduce the dependence of grain yields upon the complex weather conditions of the growing season, the impact of which reached 60–70%. The conditions of eight years (2006–2008, 2011–2014 and 2016), when the hydrothermal index for the vegetation period was 1.13–1.76, turned out to be optimal by hydrothermal indicators to harvest maize yield at 5.83–9.47 t/ha. However, the years of 2005, 2009–2010 and 2015 were unfavorable as they received precipitation by 120 mm lower than a norm or 36% of the norm. The rainfall by 37–61% lower than a norm in June–July and grain yield 3.12–6.51 t/ha were also characteristic of the years mentioned above.

Prospects of spring wheat cultivation in the conditions of arid Volga region

2020 ◽  
pp. 28-33
Author(s):  
Valery Genadievich Popov ◽  
Andrey Vladimirovich Panfilov ◽  
Yuriy Vyacheslavovich Bondarenko ◽  
Konstantin Mikhailovich Doronin ◽  
Evgeny Nikolaevih Martynov ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Soil Layer ◽  
Weather Conditions ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Climate Conditions ◽  
Wheat Cultivation ◽  
Forest Belts ◽  
Clear Differentiation ◽  
The Impact

The article analyzes the experience of the impact of the system of forest belts and mineral fertilizers on the yield of spring wheat, including on irrigated lands. Vegetation irrigation is designed to maintain the humidity of the active soil layer from germination to maturation at the lower level of the optimum-70-75%, and in the phases of tubulation-earing - flowering - 75-80% NV. However, due to the large differences in zones and microzones of soil and climate conditions and due to the weather conditions of individual years, wheat irrigation regimes require a clear differentiation. In the Volga region in the dry autumn rainfalls give the norm of 800-1000 m3/ha, and in saline soils – 1000-1300 and 3-4 vegetation irrigation at tillering, phases of booting, earing and grain formation the norm 600-650 m3/ha. the impact of the system of forest belts, mineral fertilizers on the yield of spring wheat is closely tied to the formation of microclimate at different distances from forest edges.

CULTIVATION TECHNOLOGY ELEMENTS INFLUENCE ON NEW SPRING BARLEY BREWING VARIETIES YIELDS

1970 ◽  
pp. 21-25
Author(s):  
O. A. Artyukhova ◽  
O. V. Gladysheva ◽  
V. A. Svirina
Keyword(s):  
Growth And Development ◽  
Spring Barley ◽  
Photosynthetic Apparatus ◽  
Growing Season ◽  
Biological Indicators ◽  
Mineral Fertilizers ◽  
Mass Growth ◽  
Green Mass ◽  
Yield Structure ◽  
Cultivation Technology

The effect of applying various norms of mineral fertilizers on the biological indicators of crop plants during their growth and development in the Central non-black earth region in 2017-2019 was studied on the varieties of spring barley Vladimir, Reliable and Yaromir.such indicators as plant height, photosynthetic apparatus area, green mass growth, and elements of the yield structure were Studied. It was revealed that on average during the growing season, when the norms of mineral fertilizers were increased, the area of leaf plates increased and, as a result, the increase in green mass growth relative to the control variants increased by 56.3 % at (NРК)30, 82.3 % at (NРК)60, and 126.7 % at (NРК)90. The introduction of mineral fertilizers also influenced the formation of the crop structure. There was an increase in the tillering coefficient of varieties by 15.7%, 5.7 % and 21.3 % (Vladimir, Reliable and Yaromir, respectively) relative to the control, an increase in the number of grains in the ear from 15.1 to 22.4 PCs., the weight of 1000 grains from 48.0 to 55.7 g. and the weight of grain per ear from 0.7 to 1.2 g. There was a strong correlation between the doses of mineral fertilizers and the grain yield from + 0.80 to +1.0, and the variability was calculated.      

scholarly journals Winter Wheat Straw Decomposition under Different Nitrogen Fertilizers

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 83
Author(s):  
Gabriela Mühlbachová ◽  
Pavel Růžek ◽  
Helena Kusá ◽  
Radek Vavera ◽  
Martin Káš
Keyword(s):  
Winter Wheat ◽  
Wheat Straw ◽  
Soil Surface ◽  
Weather Conditions ◽  
Mineral Nitrogen ◽  
Nitrogen Fertilizers ◽  
Pig Slurry ◽  
Straw Decomposition ◽  
Rainy Weather ◽  
N Fertilisers

The climate changes and increased drought frequency still more frequent in recent periods bring challenges to management with wheat straw remaining in the field after harvest and to its decomposition. The field experiment carried out in 2017–2019 in the Czech Republic aimed to evaluate winter wheat straw decomposition under different organic and mineral nitrogen fertilizing (urea, pig slurry and digestate with and without inhibitors of nitrification (IN)). Treatment Straw 1 with fertilizers was incorporated in soil each year the first day of experiment. The Straw 2 was placed on soil surface at the same day as Straw 1 and incorporated together with fertilizers after 3 weeks. The Straw 1 decomposition in N treatments varied between 25.8–40.1% and in controls between 21.5–33.1% in 2017–2019. The Straw 2 decomposition varied between 26.3–51.3% in N treatments and in controls between 22.4–40.6%. Higher straw decomposition in 2019 was related to more rainy weather. The drought observed mainly in 2018 led to the decrease of straw decomposition and to the highest contents of residual mineral nitrogen in soils. The limited efficiency of N fertilisers on straw decomposition under drought showed a necessity of revision of current strategy of N treatments and reduction of N doses adequately according the actual weather conditions.

Selection of drought-resistant crops for South Steppe of Ukraine

2021 ◽  
Vol 5 (1) ◽  
pp. 13-22
Author(s):  
V. V. Gamayunova ◽  
L. H. Khonenko ◽  
M. I. Fedorchuk ◽  
O. A. Kovalenko
Keyword(s):  
Humus Content ◽  
Soil Layer ◽  
Weather Conditions ◽  
Growing Season ◽  
Grain Sorghum ◽  
Climatic Conditions ◽  
Mineral Fertilizers ◽  
Chemical Application ◽  
Sowing Dates ◽  
Drought Resistant

The cultivation expediency of more drought-resistant crops, in particular sorghum, millet, false flax, safflower and others, instead of sunflower in the area of the Southern Steppe of Ukraine is substantiated. This is, first of all, required by climate change both in Ukraine and in the world. Since 2004, researches of field crops were carried out in the conditions of the Educational and Scientific Practical Center of the Mykolaiv National Agrarian University. Soil phase is the southern chernozem with humus content in the 0–30 cm soil layer which consist of 2.96–3.21 %, with medium and high level of availability of mobile phosphorus and potassium and low – mobile nitrogen. Experiments with soriz (Oksamyt hybrid) were conducted during 2004–2006, millet (Tavriiske, Kostantynivske, Skhidnevarieties) in 2008–2010, grain sorghum (Stepovyi 5 hybrid) in 2014–2016, safflower dye (Lahidnyi variety) in 2017–2019. The years of research differed significantly in temperature and even more in the amount of precipitation before sowing and during the growing season of crops. However, the weather conditions were typical of the Southern Steppe zone of Ukraine. It is established that all studied drought-resistant crops respond positively to nutrition optimization – the level of yield and quality of grain or seeds increases. It was found that the soriz productivity depending on the application of fertilizers and sowing dates increased by 37.6–39.2 %, millet –by 33.3–41.6 %, grain sorghum depending on the background of nutrition and growing conditions – by 8.2–33.2 %, dye safflower – by 11.1–64.6 %. It was determined that the optimization of nutrition of cultivated crops allows to increase their resistance to adverse conditions and productivity in the case of application of low doses of the mineral fertilizers before sowing, pre-sowing treatment of seeds, and growth-regulating chemical application of plants on the main stages of the growing season. Key words: drought-resistant plants, climatic conditions, nutrition optimization, yield, crop quality, varieties, sowing dates.

scholarly journals Возделывание топинамбура на засоленных почвах Южного Приаралья

2020 ◽  
Author(s):  
A.S. Zhangabaeva ◽  
A.K. Saitova ◽  
L.A. Gafurova ◽  
R.F. Mavlyanova
Keyword(s):  
Humus Content ◽  
Jerusalem Artichoke ◽  
Soil Surface ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Climate Conditions ◽  
Plot Area ◽  
Chloride Sulfate ◽  
General Norm ◽  
Continental Climate

Топинамбур ценная культура, используемая в различных отраслях. Цель исследований: оценка адаптивности сортов топинамбура Файз-Барака и Мужиза к условиям жаркого сухого климата и засоленных почв, а также разработка важнейших элементов технологии для получения урожая в экстремальных условиях. Климатические условия характеризуются резко континентальным климатом, очень жарким летом и холодной зимой. В Кегейлинском районе, где проводились испытания, незначительное количество осадков в весенний период (510 мм), их отсутствие в летние месяцы и постоянный ветер способствуют низкой относительной влажности воздуха (1128) и засушливости. В летний период температура днем повышается до 4043 C, что вызывает стресс у всех произрастающих культур. Почвы участка, где проводили исследования-лугово-аллювиальные, легкосуглинистые, слабозасоленные, тип засоления-хлоридно-сульфатный. В пахотном горизонте содержание гумуса составляет 0,871,03, валового азота 0,100,12, фосфора 0,230,28, калия 2,52,7 мг/кг, а обменного калия 197305 мг/кг почвы. В период вегетации соли постепенно поднимаются в корнеобитаемый слой и на поверхность почвы, что отрицательно влияет на рост и развитие культур. Агротехнические мероприятия включали промывку почвы от солей в зимний период водой (35004000 м3/га), вспашку, боронование, нарезку борозд, две культивации в период вегетации, внесение минеральных удобрений общей нормой N100P150K100 (д.в.), 34 полива с нормой 600650 м3/га. Факторы и варианты опыта: два сорта топинамбура при четырех сроках посадки клубней, трех схемах посадки, трех фракциях массы клубня и трех вариантах глубины посадки. Каждый опыт закладывали в четырехкратной повторности рендомизированным способом. Площадь делянки каждого варианта опыта составляла по 55 м2. Использовали стандартные методики. При оптимальном сроке посадки клубней 5 апреля, клубнями массой 4060 г на глубину 910 см по схеме 7040 см обеспечивается наибольшая урожайность у сорта Файз-Барака (2,79 кг/м2) и Мужиза (3,02 кг/м2).Jerusalem artichoke is a valuable crop used in various branches of industry. The goal of the research is to assess the adaptability of Jerusalem artichoke Fayz-Baraka and Muzhiz cultivars to the conditions of hot dry climate and saline soils, as well as to develop the most important elements of the technology for obtaining a yield in extreme conditions. Climate conditions are characterized by a sharply continental climate, very hot summers and cold winters. In The Kegeyli region where the tests were conducted, the low amount of precipitation in the spring (510 mm), their absence in the summer months and constant wind contribute to low relative humidity (1128) and dryness. In summer, the daytime temperature rises to 4043 C, which causes stress for all growing crops. The soils of the area where the research was carried out are meadow-alluvial, light-loamy, slightly saline, and the type of salinity is chloride-sulfate. In the arable horizon, the humus content is 0.871.03, gross nitrogen 0.100.12, phosphorus 0.230.28, potassium 2.52.7 mg/kg, and exchange potassium 197305 mg/kg of soil. During the growing season, the salt gradually rises in the root layer and on the soil surface, which negatively affects the growth and development of crops. Agrotechnical measures included washing the soil from salts in winter with water (35004000 m3/ha), plowing, harrowing, cutting furrows, two cultivations during the growing season, applying mineral fertilizers with a General norm of N100P150K100 (act. subst.), 34 watering with a norm of 600650 m3/ha. Factors and experience options: two varieties of Jerusalem artichoke with four terms of planting tubers, three planting schemes, three fractions of the mass of the tuber and three options for planting depth. Each experiment was laid out in a four-fold repetition in a rendomized way. The plot area of each variant of the experiment was 55 m2. We used standard methods. The optimal term for tubers planting on April 5, planting tubers weighing 4060 g to a depth of 910 cm according to the 70x40 cm scheme provide the highest yields for the variety Fayz Baraka (2.79 kg/m2) and Mujiza (3.02 kg/m2).

scholarly journals MICROBIAL PREPARATIONS IN AGRICULTURE CULTURAL TECHNOLOGIES AS A REGULATING FACTOR FOR THE ACTIVITY OF THE DENITRIFICATION PROCESS

2019 ◽  
Vol 29 ◽  
pp. 3-11
Author(s):  
V. V. Volkohon ◽  
А. М. Moskalenko ◽  
S. B. Dimova ◽  
К. І. Volkohon ◽  
О. V. Pyrih ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Winter Wheat ◽  
Spring Barley ◽  
N2o Emission ◽  
Mineral Nitrogen ◽  
Mineral Fertilizers ◽  
Emission Rates ◽  
Rhizospheric Soil ◽  
Mineral Fertilization ◽  
Denitrification Process

Objective. To determine the features of potential N2O emission from the rhizospheric soil of plants under different crop fertilization systems. Methods. Field experiment, gas chromatographic methods. Results. In the field stationary experiment on leached chornozem during crop rotation in potato, spring barley, peas and winter wheat, it was shown that potential N2O losses from the rhizo-spheric soil of plants depend on fertilizing systems and microbial preparations. The losses of nitro-gen gaseous compounds are proportional to the standards of the applied mineral nitrogen fertiliz-ers. High N2O emission rates are observed in the first year of cattle manure application and during its after-effect. Emission of nitrous oxide also increases with organo-mineral fertilization. The use of microbial preparations in crop cultivation technologies: Biogran for potatoes, Mikrogumin for spring barley, Rhizogumin for peas, Polimiksobakteryn for winter wheat under the application of mineral fertilizers, contributes to a significant limitation of nitrogen gas losses. This is due to the increase of the absorption coefficients of the active substance from the fertilizers by bacterization-initiated plants and, consequently, the decrease in mineral nitrogen compounds in the rhizospheric soil. When growing potatoes by an organic agrarian background (40 t/ha of manure), the signifi-cant effect of Biogran on the course of the biological denitrification process has not been estab-lished, which can be explained by the formation of an intense pool of microorganisms under the use of manure, and the levelling of pre-sowing bacterization due to this effect. Conclusion. The use of microbial preparations for inoculation of agricultural seeds helps to reduce the emission of nitrous oxide from rhizospheric soil of plants under their cultivation by mineral agrarian backgrounds, which is important both economically and environmentally.

scholarly journals Effects of hydrothermal conditions on agrophysical properties of typical chernozem and crop rotation productivity in the system of organic farming

2020 ◽  
pp. 70-80
Author(s):  
S. I. Kudria
Keyword(s):  
Crop Rotation ◽  
Crop Yields ◽  
Spring Barley ◽  
Weather Conditions ◽  
Crop Rotations ◽  
Agricultural Sustainability ◽  
Natural Fertility ◽  
Selling Price ◽  
Hydrothermal Conditions ◽  
Typical Chernozem

Relevance of research. Having the variability of hydrothermal conditions, the rate of plant life, the intensity of photosynthesis and evaporation and the activity of plant nutrient consumption change. As a rule, the optimization of the water-air regime of the soil by conducting various types of amelioration makes it possible to significantly reduce the negative effects of adverse weather conditions and ensure high sustainability of agroecosystems. However, with regard to the requirements for organic agriculture in the regions with a shortage of water supply without sufficient water resources and without the use of fertilizers to effectively conduct agricultural production is problematic. Thus, the establishment of the patterns of the dynamics of agrophysical soil properties, taking into account their impact on the bioproductivity of agrophytocenoses under variable weather conditions is the theoretical basis for solving the problem of increasing agricultural sustainability, in particular using only natural fertility and obtaining organic crop products. Purpose and objectives of research: To establish the mechanisms of changes in the nutrient regime of typical chernozem, its agrophysical properties and crop yields in different crop rotations in relation to the dynamics of agrometeorological factors under the conditions of insufficient water supply in the eastern Forest-Steppe of Ukraine; to evaluate the productivity potential of cereals and grain crops in the system of organic farming without the use of mineral fertilizers. Research methods and techniques. Evaluation of the changes in agrometeorological resources of the territory was carried out using the method of mathematical and statistical analysis of the indicators of heat and moisture supply conditions: climatic water balance and precipitation. The data obtained from the stationary experiment were processed by the methods of system generalization, correlation, economic, calculation and comparative analyzes. Research results and main conclusions. Based on the information obtained in the course the stationary agrotechnical experiment it was established that the soil density changes over the years and depends on the hydrothermal conditions with the approximation certainity of (R2) 0.75. The inverse relationship between the specific weight of the soil and its water conductivity in terms of crop rotations with R2=0.8-0.9, by years with R2=0.6 was revealed. The variation coefficient of legumes yield was 30-33%, winter wheat – 33-37%, spring barley – 36-37%, which are the indicators of its low stability over the years. Crop yields, depending on the weather conditions of the year, also fluctuated significantly: peas between 0.8-3.2, lathyrus – 0.8-2.6, winter wheat – 0.6-6.8, buckwheat – 0.6-1.9, spring barley – 0.6-3.5 t/ha. Crop rotation with peas in terms of productivity of 2.4 t/ha of grain on average outperformed the others (2.2 and 2.0 t/ha) while maintaining the patterns of fluctuations of this indicator in relation to hydrothermal conditions. Having the average statistical selling price, the yield per 1 ha of crop rotation area of all studied crop rotations was almost the same with the fluctuations in the unfavorable years of 27-35 c. u./ha, in favorable ones – 97-104 c. u./ha, with the average value of 66-73 c. u./ha. If we assume that the selling price of organic products will be 25% higher than usual, the average annual yield will triple. Prospects for further research should correspond to the global trend of scientific research aimed at developing conceptual bases for the effects of hydrothermal conditions on agrophysical soil properties, taking into account their impact on bioproductivity of agrophytocenoses as a theoretical basis for solving the problem of increasing agricultural sustainability, in particular, using only the natural fertility of the organic-oriented model of developing the agricultural sector of the economy.

scholarly journals Yield and quality of strawberries when applying fertilizers

2021 ◽  
pp. 94-99
Author(s):  
T. E. Ivanova ◽  
E. V. Lekomtseva ◽  
T. N. Tutova ◽  
E. V. Sokolova ◽  
L. A. Nesmelova
Keyword(s):  
Soluble Sugars ◽  
Growing Season ◽  
Meteorological Conditions ◽  
Water Soluble ◽  
Mineral Fertilizers ◽  
Yield And Quality ◽  
Udmurt Republic ◽  
Quality Of Products ◽  
The Impact

Relevance. One of the most important elements of the technology of cultivation of strawberries for increasing productivity and improving the quality of berries is the use of fertilizers that can regulate the growth, development, yield and quality of products.Methods. During 2016-2018, the impact of pre-planting application of complex mineral fertilizers on the yield and quality of strawberries in the Udmurt Republic was studied. The analysis of meteorological conditions during the growing season of the crop according to the research results is carried out.Results. The results of the use of complex fertilizers Azofoska, Perm-yagodnoye and Fusco-yagodnoye on garden strawberries when grown in the conditions of the Udmurt Republic are presented. It was found that the use of these fertilizers in comparison with the control (Azofoska) contributes to an increase in yield and has a positive effect on the quality of berries. The aftereffect of the studied fertilizers on the second and third year of fruiting of wild strawberries is noted. According to the results of research, the highest yield of berries of the garden strawberry was obtained in 2016 in the first year of fruiting when applying Chamfer-berry (1.33 kg/m2 ). The pre-planting application of the FaskoYagodnoye fertilizer provided a reliable increase in yield at all times of berry harvesting, and on average for three years by 0.13 kg/m2 with an NSR of 0.04 kg/m2 . The content of dry matter, water-soluble sugars and vitamin C in the berries corresponded to the characteristics of the Darenka variety and to a greater extent depended on the meteorological conditions of the growing season of strawberries.

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