EFFICIENCY OF APPLICATION OF INTEGRATED MINERAL FERTILIZERS IN SOYBEAN AGROCENOSIS

2020 ◽  
Vol 5 (86) ◽  
pp. 66-72
Author(s):  
N.A. Shiryaeva ◽  
◽  
Yu.V. Beregovaya ◽  
S.N. Petrova ◽  
◽  
...  
Keyword(s):  
Mineral Nutrition ◽  
Economic Effect ◽  
Mineral Fertilizer ◽  
Biological Efficiency ◽  
Mineral Fertilizers ◽  
Agricultural Producers ◽  
Glycine Max L ◽  
Educational Production ◽  
Productivity Potential ◽  
Cultivation Techniques

Soybean is one of the most valuable protein crops on the modern market of agricultural producers and its production has been constantly growing in recent decades. The level of its productivity, as well as any other crop, depends on the biological productivity potential of the cultivated variety and the degree of implementation of its cultivation techniques. The aim of the research was to study the responses of soybean Glycine max (L.) Merr. Zusha varieties for various mineral nutrition in the conditions of agrocenosis. The research was conducted on the basis of the research and educational production center "Integration" of the Orel State Agrarian University named after N.V. Parakhin. We determined the biological efficiency of fertilizer systems, the productivity and quality of grain under different mineral nutrition conditions .Testing of liquid complex fertilizers on soy has shown high biological and economic efficiency of mineral fertilizers. In conditions of dark gray forest soils with average agrochemical indicators of the soil, as well as with spontaneous inoculation of soybean by native rhizobia strains, the maximum economic effect was demonstrated with the pre-sowing application of complex mineral fertilizer NPK (S)+Ca 5:15:30(5)+7 in a dose of 150 kg/ha and 20 kg/ha of urea, as well as diammofoski NPK(S) 10:26:26 (2) in conjunction with the ZhCU. The use of mineral fertilizers contributed to an increase in the growth of biomass by an average of 23%, and the area of leaves-by 8.5% compared to the control. Changes in mineral nutrition led to an increase in the content of raw protein in soy grains. Additionally, 4.4-4.6 C/ha of grain was obtained from 1 ha, respectively 4.7 and 5.4 thousand rubles of income due to an increase in soybean productivity by 22-23% compared to the control.

scholarly journals СОДЕРЖАНИЕ БЕЛКА В ЗЕРНЕ СОРТОВ ОЗИМОЙ ПШЕНИЦЫ ПРИ РАЗЛИЧНЫХ УРОВНЯХ МИНЕРАЛЬНОГО ПИТАНИЯ

2019 ◽  
pp. 23-28
Author(s):  
V.V. Koshelyaev ◽  
V.I. Salnikov ◽  
I.P. Koshelyaeva
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Mineral Nutrition ◽  
Weather Conditions ◽  
Mineral Fertilizers ◽  
Wheat Varieties ◽  
Medium Activity ◽  
Grain Crop ◽  
New Varieties ◽  
Cultivation Techniques

Основным направлением повышения качества зерна является выведение новых сортов, генетически предрасположенных формировать зерно с высоким качеством. Вместе с тем, генетический потенциал сортов способен реализовываться только при конкретных погодных условиях и применении приемов возделывания, благоприятно влияющих на рост и развитие растений. В настоящих исследованиях путем изменения режимов питания растений создавали различные условия для того, чтобы определить возможности сортов формировать урожай зерна с большим содержанием белка. Цель работы оценить и выделить сорта озимой пшеницы, способные реализовать потенциал качества зерна при различных уровнях интенсификации минерального питания. Для достижения цели был заложен двухфакторный полевой опыт. Фактор А сорта озимой пшеницы, фактор В уровни минерального питания. В результате установлено, что сорта озимой пшеницы характеризуются неодинаковыми свойствами накапливать белок в зерне. Высокой активностью накапливать белок при внесении удобрений характеризуется сорт Клавдия 2. Средней активностью сорта Безенчукская 380, Московская 56 и низкой Немчиновская 57, Скипетр и Фатинья. Внесение минеральных удобрений из расчета N16 P16 K16 при посеве осенью и N68 в подкормку весной способствует формированию зерна с более высоким содержанием белка у всех сортов озимой пшеницы.The main direction of improving the quality of grain is the cultivation of new varieties genetically predisposed to form high quality grain. At the same time, the genetic potential of varieties can only be realized under specific weather conditions and the application of cultivation techniques that favourably affect the growth and development of plants. In these studies, various conditions were created by changing plant nutritional regimes in order to determine the possibilities of varieties to form a grain crop with a high protein content. The purpose of the work was to evaluate and highlight varieties of winter wheat that can realize the potential of grain quality at various levels of intensification of mineral nutrition. To achieve the goal, a two-factor field experiment was carried out. Factor A - winter wheat varieties, factor B - levels of mineral nutrition. As a result, it was established that varieties of winter wheat were characterized by unequal properties to accumulate protein in grain. Variety Claudia 2 was characterized by high activity to accumulate protein when fertilizing. Bezenchukskaya 380, Moskovskaya 56 were characterized by medium activity and Nemchinovskaya 57, Scepter and Fatigna - by low. The application of mineral fertilizers at the rate of N16 P16 K16 during sowing in fall and N68 for top dressing in spring contributed to the formation of grain with a higher protein content in all varieties of winter wheat.

scholarly journals Influence of nitrogen and mineral fertilizer application rates for legumes on the number of stems and the amount of NPK in the soil

2021 ◽  
Vol 258 ◽  
pp. 04031
Author(s):  
Abduvali Iminov ◽  
Furkatbek Achilov ◽  
Akhmad Kurbonov ◽  
Dilnoza Usmonova
Keyword(s):  
Plant Root ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Application Rates ◽  
Legume Seeds ◽  
Agrochemical Properties ◽  
Glycine Max L ◽  
Number Of Stems ◽  
Endogenous Bacteria

Inoculation of seeds of legumes (soybean - Glycine max L., mung bean - Phaseolus aureus L., wild beans - Phaseolus) grown as a secondary crop after winter wheat before sowing with nitragin and application of mineral fertilizers in different doses affected the amount of endogenous bacteria formed in the plant root as well as the agrochemical properties of the soil. Inoculation of legume seeds with nitragin before sowing and application of mineral fertilizers at different rates increased the amount of humus in the topsoil (0-30 cm) layer by 0.025-0.029% compared to the initial values, and the total nitrogen content by 0.009-0.012%. The formation of endogenous bacteria in the root of the plant was inoculated with nitrogen before sowing the seeds of soybean, moss, bean crops. The amount of legumes was 22.7-36.7 pieces in the variant, in which the mineral fertilizers N30 R90 K60 kg/ha was applied, whereas it was 12.0-15.6 pieces in the variant without any mineral fertilizers.

scholarly journals INFLUENCE OF THE MINERAL NUTRITION LEVEL ON THE PRODUCTIVITY OF CEREAL AND LEGUMINOUS AGROCENOSES IN THE FOREST STEPPE OF BAIKAL

2019 ◽  
Vol 14 (3) ◽  
pp. 5-9
Author(s):  
Виктор Агафонов ◽  
Viktor Agafonov ◽  
Евгений Бояркин ◽  
Evgeniy Boyarkin
Keyword(s):  
Mineral Nutrition ◽  
Growth And Development ◽  
Mineral Fertilizer ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Green Mass ◽  
Green Mass Yield ◽  
The Impact

The article presents findings of the influence of different levels of mineral nutrition on plant growth and development, the impact of fertilizers on the botanical composition, on the productivity and forage benefits of cereal-bean agrocenoses in the forest-steppe zone of the Baikal region. The objects of research were mixed crops of oats with peas and millet with vetch, peas, and Austrian winter pea. Legumes are the main source of protein increase in feed. In the field, the most widespread, among legumes, were vetch, sowing peas, field peas (Austrian winter pea). As a result of phenological observations, it was found that the growth and development of plants depended on the biological characteristics of crops, weather conditions and directly on the mineral nutrition level. The millet reacted most effectively to the application of mineral fertilizers, starting from the exit phase into the tube. The introduction of mineral fertilizers in pre-sowing tillage contributed to an increase in the proportion of legume components in the total green mass yield and a decrease in cereals. The highest competition in agrocenoses of millet with legume components was vetch, its share in the mixture increased, compared to the unfertilized background, by 6 and 14.5%, depending on the background of fertilizers. It was found that, compared with the unfertilized background, mineral fertilizers increased the yield of green mass from 1.5 to 4.9 tons per hectare, the collection of dry matter from 0.4 to 2.0 tons per hectare and the collection of feed units from 0.3 to 1.3 tons per hectare. Digestible protein content in 1 unit increased with the introduction of nitrogen fertilizer (N45), depending on the type of components in the mixture, from 3.2 to 6.6 g, and with the introduction of complex mineral fertilizer (N45P30K30) from 2.5 to 9.6 g. All are millet-bean mixtures at all levels of mineral nutrition comply with zootechnical standards.

EFFECT OF TILLAGE METHODS AND LEVELS OF MINERAL NUTRITION ON YIELD AND GRAIN QUALITY OF THE “VLADIMIR” SPRING BARLEY VARIETY IN THE CENTRAL REGION OF THE NON-CHERNOZEM ZONE

2021 ◽  
pp. 18-28
Author(s):  
А.N. FILATOV ◽  
◽  
V.N. MAZUROV ◽  
V.K. KHRAMOY ◽  
E.R. ARLANTSEVA
Keyword(s):  
Protein Content ◽  
Mineral Nutrition ◽  
Grain Quality ◽  
Spring Barley ◽  
Mineral Fertilizer ◽  
Grain Protein Content ◽  
Barley Grain ◽  
Mineral Fertilizers ◽  
Grain Protein

Providing the brewing industry with locally produced raw materials is important both from an economic point of view and in terms of import substitution. Breeders create brewing barley varieties with a reduced protein content, however, in production they often use universal varieties that combine high yields with an average protein content of 11–12%. For such varieties, it is necessary to develop technological methods for obtaining a crop with specified properties, depending on the purposes of using the products. The quality indicators of barley grain and the efficiency of its production are significantly influenced by mineral fertilizers and the minimization of soil cultivation. In this regard, the authors studied the effect of minimal tillage on the yield and grain quality of spring barley of the Vladimir variety at two levels of mineral nutrition (without fertilizers 26 and with full supply oif mineral fertilizer – N35P40K135) in a two-factor field experiment carried out in 2018–2019 on the medium-loamy light gray forest soil. The experiment helped determine the yield and structure of the crop, the content of protein, starch, and grain hoodness (hull content). It was found that the lack of precipitation during the barley tillering – heading period leads to a decrease in grain yield by 40.0–54.8% as compared with the conditions of increased moisturizing. At the same time, there was an increase in the grain protein content by 1.4–1.7% and the grain filminess by 0.5–0.9%. The use of moderate rates of complete mineral fertilizer (N35P40K85) led to an increase in the barley yield by an average of 13.2% and the grain protein content by an average of 0.2%. On the other hand, it led to a decrease in the grain filminess by 0.2% and starch content by 0.4–0.6%. The positive effect of nitrogen fertilizers on the increase in protein content in barley grain was higher under minimal tillage. Under minimal tillage, regardless of the level of moisture supply and mineral nutrition, there was a tendency towards a decrease in the barley yield by an average of 3.9%, mainly due to a decrease in the density of the productive stalk. There was also a tendency towards a decrease in the protein content in the barley grain – by 0.3% – when no complete mineral fertilizer was used.

Productivity of maize hybrids of different FAO groups depending on conditions of irrigation and dosage of fertilizers in the southern steppe of Ukraine

2014 ◽  
Vol 1 (3) ◽  
pp. 62-68 ◽  
Author(s):  
R. Vozhegova ◽  
Yu. Lavrynenko ◽  
T. Glushko
Keyword(s):  
Mineral Fertilizer ◽  
Laboratory Method ◽  
Computational Method ◽  
Mineral Fertilizers ◽  
Maize Hybrids ◽  
Grain Productivity ◽  
Early Ripening ◽  
Biometric Measurements ◽  
The Difference ◽  
Cultivation Techniques

Aim. To determine optimal doses of mineral fertilizers taking into consideration biological specifi cities of new maize hybrids of different FAO groups in irrigation conditions of the southern Ukraine and to trace their impact on the formation of grain productivity of plants. Methods. The fi eld method was used to study the in- teraction of the investigated object and both experimental and environmental factors via the registration of the yield volume and biometric measurements; the laboratory method was used to determine soil humidity, humidity content in grain and quality indices of grain; the statistical method was used to estimate the reli- ability of the results obtained; and the computational method was used in economic and energetic estimation of the employed cultivation techniques. Results. The yield of maize grain of 13–15.42 t per ha on condition of irrigation and introduction of the estimated amount of mineral fertilizer N 240 P 0 K 0 is registered for hybrids of mid-ripening and middle-late groups – Azov, Krasyliv 357 MB, Sokolov 407 MB, Bystrytsia 400 MB. Without irrigation, the highest yield is remarkable for the hybrids of early-ripening and middle-early groups – Tendra, April 187 MB, Syvash, Orzhytsia 237 MB (grain yield of 3.15–3.39 t per ha). Conclusions. The following hy- brids are recommended for cultivation on condition of irrigation of dark-chestnut soils of the southern steppe of Ukraine: early-ripening Tendra, middle-early – Orzhytsia 237 MB, mid-ripening – Krasyliv 357 MB, and middle-late – Bystrytsia 400 MB, with the introduction of the estimated dose of the mineral fertilizers, defined by the difference between the amount of nutritious elements, required for the formation of productivity of the desired level and their content in the soil of a specific plot.

scholarly journals EFFICIENCY OF FERTILIZER SUPPLEMENT OF SUNFLOWER IN THE WESTERN REGION OF UKRAINE

2021 ◽  
Author(s):  
V. Dumych ◽  
Keyword(s):  
Chemical Method ◽  
Economic Effect ◽  
Drug Application ◽  
Mineral Fertilizer ◽  
Control Area ◽  
Mineral Fertilizers ◽  
Sunflower Seeds ◽  
Foliar Fertilization ◽  
Pests And Diseases ◽  
Growth Stimulant

The purpose of research: improvement of technology of sunflower cultivation, in particular optimization of system of food of culture in zonal conditions of the West of Ukraine. Research methods. Studies of the effectiveness of foliar fertilization in the technology of sunflower cultivation were conducted in the experimental field of the Lviv branch of UkrNDIPVT. L. Pogorily, with a total area of 4.5 hectares, which was divided into nine experimental plots with different schemes of drug application. Sunflower seeds were sown with a Romina 8 seed drill (Gaspardo). The sowing rate is 5 kg / ha. Width between rows - 70 cm. Protection of crops from weeds, pests and diseases was carried out by a chemical method. During the research, the effectiveness of the application of organo-mineral fertilizer Humilin Stimulus (Agrocontour LLC), Nivaton Boron microfertilizer (MM Logistics LLC) and Expert Grove growth stimulant (Adama LLC) was determined. The drugs were applied once in the phase of 3-4 pairs of true leaves and twice - in the phases of 3-4 and 6-8 pairs of true leaves Research results: Plowing to a depth of 27 cm, cultivation to a depth of 10 cm and pre-sowing cultivation to a depth of 5 cm were carried out at the experimental sites. Mineral fertilizers Super Agro (200 kg/ha) and lime-ammonium nitrate were applied for spring cultivation. Sunflower seeds were sown with a Romina 8 seed drill (Gaspardo). The sowing rate is 5 kg/ha. Width between rows - 70 cm. Protection of crops from weeds, pests and diseases was carried out by a chemical method. During the research, the effectiveness of the application of organo-mineral fertilizer Humilin Stimulus (Agrocontour LLC), Nivaton Boron microfertilizer (MM Logistics LLC) and Expert Grove growth stimulant (Adama LLC) was determined. The drugs were applied once in the phase of 3-4 pairs of true leaves and twice - in the phases of 3-4 and 6-8 pairs of true leaves Foliar dressing provided an increase in the diameter of the basket, the number of seeds in the basket, the weight of 1000 seeds, a decrease in empty grain and an increase in the seed productivity of one plant. Thus, as a result of the introduction of drugs, the number of full-fledged seeds in baskets increased by 15-85 pieces. or 2,1-11,8% more than in the control area. The number of full-fledged seeds in the basket under control - 718 pcs. The weight of 1000 seeds varied from 54,6 g in the control to 59,1 g in the area where the plants were fed twice. The difference between the largest and smallest mass of 1000 seeds is only 4,5 g or 8,2%. The minimum and maximum productivity of one basket differs by 8,3 g or 21,2%. In areas with different variants of one-time foliar feeding, an increase in yield by 5,7-14,7% compared to the control was recorded, and in the case of double fertilization - by 10,4-26,1%. Seed yield on control was 2,11 t/ha. Conclusions. The use of foliar fertilization of sunflower allowed to improve the structural indicators of yield and weight of 1000 seeds. The economic effect of root fertilization reached from 1022 to 4855 UAH/ha.

scholarly journals Efficiency of bacterial fertilizers in peas agrocoenosis under the conditions of the northeastern Forest-Steppe of Ukraine

2019 ◽  
pp. 18-23
Author(s):  
O.M. Danylchenko ◽  
M.V. Radchenko ◽  
Z.I. Hlupak
Keyword(s):  
Mineral Nutrition ◽  
Rhizobium Leguminosarum ◽  
Mineral Fertilizer ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Individual Plant ◽  
Yielding Capacity ◽  
Maximal Amount ◽  
North East ◽  
Seed Inoculation

Peas (Pisum sativum L.) is an appreciable annual leguminous crop which can solve the problem of phytoalbumin, improve nitrogen balance of soil and increase the production of food products. The important role in cultivation method of leguminous crops, pea in particular, plays the realization of productive potential due to energy-saving techniques, namely seed inoculation. One of the ways to supply pea agrocoenosis with beneficial microflora is the use of bacterial fertilizers which can supply the plants with essential complex of microorganisms, good nutrition and as a result it can help to realize its genetic potential as for yielding capacity and protein content. The aim of the research is to define the influence of bacterial fertilizers on pea productivity by different level of mineral nutrition. The researches have been conducted on the base of educational and scientific centre of Sumy National Agrarian University according to generally accepted methods during 2015–2017. The research variants were the following: without inoculation by bacterial fertilizer and with seed treatment with Rhyzohumin  and Polymyxobakteryn. Inoculation of peas seed was conducted according to the method of the Institute of Agricultural Microbiology and Agro-Industrial Production of NAAS (Chernihiv). On the control the seed inoculation has not been done. The backgrounds of mineral nutrition were P60K60 and N60P60K60. The application of bacterial fertilizers which contain new, highly effective, culturally specific variety of rhizobial bacteria with the increased viability in high concentrations ensures the development of maximal amount of tubers on root system of plants. The highest efficiency in forming symbiotic apparatus and intensity of its activity was stipulated by combination of presowing seed inoculation with Rhezohumin and application of phosphate-potassium fertilizers in the doze of P60K60. The maximal amount and weight of nodules was 50.3 unit per plant and 2.06 g per plant. The level of peas yielding capacity is defined by individual plant productivity which is multiplied by its amount and characterizes the cro productivity under the certain conditions of growing. It was determined that the combination of seed inoculation by bacterial fertilizers through using of nitrogen fixing (Rhizobium leguminosarum strain 31) and phosphorus mobilizing (Bacillus polymyxa KB) bacteria and mineral fertilizers favours to raising of peas productivity under the conditions North-East Forest-Steppe zone of Ukraine. The most effective result was obtained in the variant with peas seed inoculation by Rhyzohumin and application of mineral fertilizer in the doze N60P60K60 (yield has increased on 33.7 % comparing with the control).

Intensity of microbiological processes in gray forest soils under the liming and plowing of crop by-products

2018 ◽  
Vol 30 (1) ◽  
pp. 19-23 ◽  
Author(s):  
I. M. Malynovska ◽  
N. A. Tkachenko
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Mineral Nutrition ◽  
Mineral Fertilizer ◽  
Positive Influence ◽  
Mineral Fertilizers ◽  
Mineral Fertilization ◽  
The Impact ◽  
By Products ◽  
Crop Biomass

Established that liming with single dose by hydrolytic acidity (1,0 Hg) slows down the processes of organic matter mineralization in gray forest soil: without mineral fertilizers – in 2,1 times, with mineral fertilizers – in 4,1, with plowing of the seed crop biomass and the by-products of the predecessor – in 1,4 times. The mineralization of nitrogen compounds as a result of liming also proceeds slower: without mineral fertilizers – in 1,2 times, with mineral fertilizers – in 2,2 times. Confirmed patterns that were obtained in previous years of research about the impact of liming on the activity of humus mineralization – it decreases as a result of liming with full dose (1,0 Hg) without mineral fertilizers by 66,7 %, with mineral fertilizers – by 4,4 %.  The total biological activity in the soil without a mineral fertilizer increases as a result of liming by 23,0 %, with mineral fertilizers – by 42,5, at the background of exogenous organic matter (EOM) plowing – by 83,7 %. Liming allows to reduce the level of phytotoxicity of soil without mineral fertilization by 17,9 %, %, with mineral fertilizers at the background of EOM – by 12,2 %. Positive influence of liming is amplified in variants with introduction of organic matter into the soil (byproducts of predecessor and siderate). Plowing of siderate crop biomass and by-products of predecessor in crop rotation allows to slow down the processes of organic matter accumulation in soil. The application of liming and mineral fertilizers in combination with the introduction of EOM reduces the index of pedotropy in 2,1 times, only with mineral fertilizers (N60Р30К60) – in 1,5 times. Similarly, plowing of the EOM affects the intensity of other mineralization processes. The total biological activity increases as a result of EOM plowing into the soil: in the variant with the use of mineral fertilizers by 54,7 %, with mineral fertilizers and liming – by 28,9 %. Confirmed previously established laws regarding the impact of optimization of mineral nutrition on the activity of decomposition of humic substances: with an increase in the dose of mineral fertilizers in 1,5 and 2 times the activity of mineralization of humus decreases by 6.0 and 10,1 % respectively. With the improvement of mineral nutrition of plants, the amount of root extracts is increased, which is a more accessible substrate than humus acids, which leads to slowing down of the destruction of humus substances.

Economic and bioenergy efficiency of saflor growing with the use of mineral fertilizers and growth regulators

2021 ◽  
Vol 2020 (1-2) ◽  
pp. 52-62
Author(s):  
A.I. Polyakov ◽  
O.Yu. Alieva
Keyword(s):  
Growth Regulators ◽  
Mineral Nutrition ◽  
Mineral Fertilizer ◽  
Economic Indicator ◽  
Mineral Fertilizers ◽  
Net Profit ◽  
Gross Energy ◽  
Energy Coefficient ◽  
Additional Mineral

In increasing the yield and improving the quality of safflower products, the primary importance belongs to the agronomic requirements for cultivation, which are based on the biological and physiological characteristics of the culture. The aim of the research was to determine the economic efficiency of growing safflower varieties with the use of additional mineral nutrition and microbiological preparations. The research was conducted in 2017–2019 in the fields of the Institute of Oilseeds of NAAS.Safflower was sown in the first decade of April with a sowing rate of 240,000 similar seeds per hectare. The system of the main tillage: classical. As research factors were selected: varieties – Zhyvchyk and Dobrynya; application of mineral fertilizers – without fertilizers, N60P50 under the main cultivation, P50 – under the main cultivation + N60 – at sowing; application of growth regulators – control (without treatment), Rost-concentrate + Chelatin oil, Chelatin forte + Chelatin mono bor, Chelatin mono bor + Chelatin phosphorus-potassium, Chelatin phosphorus-potassium + Chelatin multimix + Chelatin mono bor. Technical and economic evaluation of safflower cultivation with the use of additional mineral nutrition and microbiological preparations was performed using conventional methods. As a result of our three-year research, the influence of additional mineral nutrition and the use of microbiological preparations on the yield of safflower varieties Zhyvchyk and Dobrynya was established. The highest yields of safflower cultivar Zhyvchyk – 1.71 and 1.70 t/ha and Dobrynya cultivar – 1.84 and 1.85 t/ha were obtained against the background of mineral fertilizers at a dose of N60P50 under the main tillage with the use of Rost-concentrate + Chelatin oil and Chelatine mono bor + Chelatin phosphorus-potassium. The largest conditionally net profit – 22603 UAH/ha for the variety Zhyvchyk and 23837 UAH/ha for the variety Dobrynya was obtained on the background without mineral fertilizers with the use of drugs Chelatin mono bor + Chelatin phosphorus-potassium. The level of profitability, depending on the system of mineral fertilizers and the option of growth stimulants was: for the variety Zhyvchyk 143–524%, for the variety Dobrynya 161–551%. The highest yield of gross energy 38646 MJ/ha in the variety Zhyvchyk and 41509 MJ/ha in the variety Dobrynya was obtained against the background of the main application of N60P50 with treatment of crops with drugs Rost-concentrate + Chelatin oil. The highest indicators of energy coefficient for both varieties were in control (without fertilizers): in Zhyvchyk 3.0–3.1, in Dobrynуа 3.1–3.2. Key words: safflower, variety, mineral fertilizer, growth regulator, productivity, economic indicator, energy coefficient.

scholarly journals Productivity of natural phytocenoses of the Namsky agrolandscape in Yakutia under organic and mineral nutrition regimes

2022 ◽  
Vol 51 (6) ◽  
pp. 39-46
Author(s):  
V. V. Ustinova ◽  
N. V. Barashkova
Keyword(s):  
Mineral Nutrition ◽  
Fold Increase ◽  
Metabolizable Energy ◽  
Organic Fertilizers ◽  
Middle Taiga ◽  
Mineral Fertilizers ◽  
Combined Application ◽  
Joint Application ◽  
Humus Layer ◽  
Productivity Potential

The results of the study of the productivity potential of natural phytocenoses of different species composition in the Namsky agrolandscape of the middle taiga subzone of the Republic of Sakha (Yakutia) are presented. The research was conducted in 2009-2016. The soils of the experimental plot are permafrost soils with a thin humus layer. The effect of mineral and organic fertilizers on the productivity of steppe meadows was studied. On herb-grass, wheatgrass, steppificated phytocenoses the following practices of organo-mineral nutrition of plants were used: control (no fertilizer); humus 20 t/ha; humus 20 t/ha once every 4 years + N60P60K60 annually; N30P30K30 annually; humus 20 t/ha annually. The optimum rates of organic and mineral nutrients to improve the productivity potential of natural steppe meadows have been established. The highest productivity potential in the Namsky agrolandscape was obtained with the combined application of organic and mineral fertilizers (humus 20 t/ha once every 4 years + N60P60K60 annually). On herb-grass and wheatgrass phytocenoses hay yield reached 23.0-24.1 c/ha. Yield per 1 ha of metabolizable energy was 27.0-22.4 GJ, fodder units 1472-1663, crude protein 336-371 kg. The content of digestible protein in 1 fodder unit in herb-grass was 92 g, in wheatgrass - 102 g. The annual application of mineral fertilizers at a dose of 60 kg/ha of the active substance provided a 2-fold increase in the productivity of natural phytocenoses, depending on agroclimatic conditions of the growing season. The influence of mineral fertilizers and their joint application with organic fertilizers on the yield of natural phytocenoses is statistically reliable, which indicates the possibility of regulating the productivity of steppificated phytocenoses.

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