scholarly journals Fluxes of 15N, soil nitrogen in sod-podzolic soil in spring wheat crops under inoculation with Rhyzoagrin

2021 ◽  
Vol 901 (1) ◽  
pp. 012067
Author(s):  
A A Alferov ◽  
L S Chernova
Keyword(s):  
Spring Wheat ◽  
Podzolic Soil ◽  
Mineral Fertilizer ◽  
Utilization Rate ◽  
Biological Product ◽  
Loamy Soil ◽  
Absolute Size ◽  
Hydrothermal Coefficient ◽  
Integral Assessment ◽  
Nitrogen Flows

Abstract In a microfield experiment using a labeled nitrogen 15N fertilizer on sod-podzolic light loamy soil for 11 years during the cultivation of spring wheat and the use of a biological product based on a strain belonging to the genus Agrobakterium radiobakter (strain 204), nitrogen flows in the fertilizer – soil – plant system were studied. The utilization rate of spring wheat labeled with 15N ammonium nitrate averaged 40% of the amount applied. The absolute size of the immobilization in the structure of the labeled nitrogen balance of the mineral fertilizer was 27-30%. Inoculation with Rhyzoagrin does not significantly affect the nitrogen immobilization of the mineral fertilizer. The gaseous losses of labeled nitrogen of the mineral fertilizer were 33% of those applied to the background of the phosphorus and potash fertilizers and decreased with inoculation with Rhyzoagrin to 29%. The use of an integral assessment showed that the agroecosystem functioned in the resistance mode on sod-podzolic light-loamy soil when using mineral nitrogen fertilizer. The dependence of the indicator RI: M, % of the HTC (hydrothermal coefficient) expressed by the equation y = -24, 506x2 + 43,462 x + 15,251 at R2 = 0.7416 is established.

scholarly journals Nitrogen Flows and Sustainability of Agrosystem

2019 ◽  
Vol 9 (1) ◽  
pp. 4961-4966
Keyword(s):  
Ammonium Nitrate ◽  
Spring Wheat ◽  
Soil Nitrogen ◽  
Green Manure ◽  
Nitrate Nitrogen ◽  
Mineral Fertilizer ◽  
Biological Product ◽  
Positive Tendency ◽  
Seed Inoculation ◽  
Nitrogen Flows

In the experiment through sod-podzolic soil, nitrogen flows were estimated in agrocoenosis when applied under spring wheat using 15N ammonium nitrate labeled with isotope and white mustard biomass as a siderate. It was established that the increase of grain yield from the use of N45 is 42%, the siderate – 58%, their joint introduction – 99%, from seed inoculation with the Rizoagrin biopreparation – 16%. 60 - 80% of spring wheat harvest is formed due to soil nitrogen, the share of "extra" nitrogen reaches 14%. Plants use 41% of ammonia nitrate nitrogen for crop formation, and 23% of the siderate. Seed inoculation with a biological product increases plant nitrogen intake of mineral fertilizer by 5 - 9%. 26% of ammonium nitrate nitrogen and 33% of siderate nitrogen are fixed in the soil, the biological product does not affect this process. Unaccounted losses of 15N mineral fertilizer make up 32% of the applied amount and reduced by 8% when adding ammonium nitrate and inoculating seeds. The loss of labeled siderate nitrogen is 25% of the amount deposited, the use of the biological product increases the nitrogen consumption of N-fertilizers and provides a positive tendency for green manure nitrogen to fix in the soil and reduces its loss by 4%. On sod-podzolic light loamy soil, agroecosystem functions in the homeostasis mode (norm) when using green manure, in the stress mode (permissible) – when sharing green manure and mineral nitrogen fertilizer. When using only ammonium nitrate, agroecosystem operates in resistance mode. Differences in the performance of agroecosystems among variants with the inoculation of spring wheat with Rizoagrin and without it have not been established.

scholarly journals Agroecosystem Stability In Spring Wheat Crops With The Application Of Fertilizers And Microbial Biological Products

2021 ◽  
Vol 901 (1) ◽  
pp. 012066
Author(s):  
A A Alferov ◽  
L S Chernova
Keyword(s):  
Spring Wheat ◽  
Nitrogen Fertilizers ◽  
Mineral Fertilizers ◽  
Total Removal ◽  
Hydrothermal Coefficient ◽  
Biological Products ◽  
Rhizosphere Microorganisms ◽  
Net Mineralization ◽  
The Stability ◽  
Nitrogen Flows

Abstract The formation of spring wheat biomass on sod-podzolic soil is carried out mainly due to soil nitrogen, the share of which reaches 1/3 of the total removal of the element when using mineral fertilizers. Inoculation of spring wheat seeds with biologics of rhizosphere microorganisms increases the nitrogen content of fertilizers to 7.3%, increases its immobilization by 5.9-6.7% and reduces losses by 7.4-13.9%. The stability of the agroecosystem is characterized by nitrogen flows. During the growing season of spring wheat with a hydrothermal coefficient of 1.55-1.72, the amount of mineralized nitrogen (mineralization (M)), depending on fertilizers, reaches 9.4-11.1 g/m2, while the reimobilized nitrogen (reimobilization (RI)) – 2.2-3.1 g/m2, net-mineralized (net-mineralization (N-M)) – 6.8 - 8.0 g/m2. The use of nitrogen fertilizers and biological products leads the agroecosystem to the resistance mode (the maximum permissible level of exposure) (RI : M = 27-28%, N-M : RI = 2.5-2.7).

NITROGEN FLOWS IN AGROPHYTOCENOSIS ON SODDY-PODZOLIC SOIL (research with 15n )

1970 ◽  
pp. 17-21
Author(s):  
А. А. Zavalin ◽  
О. А. Sokolov ◽  
N. Ya. Shmyreva
Keyword(s):  
Soil Nitrogen ◽  
Nitrogen Fertilizer ◽  
Podzolic Soil ◽  
Maximum Yield ◽  
Mineral Fertilizer ◽  
Soddy Podzolic Soil ◽  
Nitrogen Fertilizers ◽  
Cereal Crops ◽  
Stress Mode ◽  
Nitrogen Flows

Micro-field experiment was carried out with the application of oats and timothy biomass, and nitrogen fertilizer marked by stable isotope of the 15N, and manure for the use of nitrogen by plants, and the flows of this element were analyzed in the system "fertilizer -soil-atmosphere". It was found that the barley consumes the most amount fertilizer nitrogen and soil nitrogen when applying a nitrogen mineral fertilizer; the consumption of the oats and timothy nitrogen biomass decreases by 18-36% and 6-36% respectively. Application of the oats and timothy biomass increases nitrogen immobilization in the soil and agrophytocenose resistance from 1.6 to 1.8 times, decreases gaseous losses of their nitrogen from 1.4 to 2.0 times in comparison with nitrogen fertilizer (stress mode). Manure application decreases nitrogen losses from the oats and timothy biomass by 1.6 times. Maximum yield of grain the barley forms when using nitrogen fertilizer as a result of its access in the soil. Application the cereal crops biomass either separately, or along with manure reduces the yield of barley by 30-13% compared with nitrogen fertilizers, which affect nitrogen flows in the agroecosystem.

scholarly journals Sustainability of the agroecosystem in the application of fertilizers and biopreparations

2019 ◽  
pp. 35-37
Author(s):  
A. A. Alferov ◽  
L. S. Chernova
Keyword(s):  
Spring Wheat ◽  
Soil Nitrogen ◽  
Podzolic Soil ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Positive Trend ◽  
Total Removal ◽  
Maximum Permissible Level ◽  
Net Mineralization ◽  
Nitrogen Flows

The formation of biomass of spring wheat on sod-podzolic soil is mainly due to soil nitrogen, the share of which reaches 4/5 of the total removal of the element when using mineral fertilizers. Inoculation increases the nitrogen content of fertilizers by 4.5%, reduces losses by 7%; there is some tendency to increase the immobilization of N fertilizers. The sustainability of the agroecosystem is characterized by nitrogen flows. During the growing season of spring wheat, the amount of mineralized nitrogen depending on the fertilizer reached 17.4-18.0 g/m2, while the amount of remobilized nitrogen was 4.4-4.9 g/m2, net-mineralization (N-M) – 13.1 g/m2. The inoculation of RA seeds does not significantly affect the processes of mineralization (M) and remobilization (RI), only a positive trend of growth of mineralization and remobilization of nitrogen in the soil is observed. The use of nitrogen fertilizer leads agroecosystem in a resistant state-the zone of the maximum permissible level of exposure (RI:M=25%, N-M:RI=3.0). On average, over the years of research, inoculation of RA seeds does not change the indicators of sustainability of agroecosystem when applying fertilizers.

scholarly journals The influence of methods of basic tillage and fertilizers on the content of basic nutrients in leached chernozem

2022 ◽  
Vol 354 (11-12) ◽  
pp. 123-128
Author(s):  
E. V. Kuzina
Keyword(s):  
Spring Wheat ◽  
Nitrate Nitrogen ◽  
Weighted Average ◽  
Sharp Decrease ◽  
Economic Feasibility ◽  
Adaptive Landscape ◽  
Mineral Fertilizers ◽  
Industrial Complex ◽  
Biological Product ◽  
Resource Saving

Relevance. The preservation, reproduction and rational use of agricultural soil fertility is the main condition for the stable development of the agro-industrial complex. Mechanical tillage systems, the use of mineral and microbiological fertilizers are one of the main links in adaptive landscape farming systems. In the conditions of a sharp decrease in the rates of fertilizer application, an increase in the imbalance of elements of mineral nutrition of plants observed in recent years in agroecosystems, the function of improving the regimes of chernozems, preserving their fertility is designed to perform resource-saving technologies of soil cultivation in combination with effective methods of using agrochemicals that combine environmental and economic feasibility.Methods. The experiments were laid in 2017–2019 on chernozem heavy loamy soils typical for most farms in the Ulyanovsk region. The object of the study is spring wheat, the variety Ulyanovskaya 100. The subject of the study is the methods of tillage, doses of mineral fertilizers, the biological product "BisolbiFit". The following technological methods of using the biological product were studied: seed treatment before sowing, non-root treatment of vegetating plants and a combination of these methods. The experiment was carried out on three backgrounds: N0P0K0 (control); 2) N30P30K30; 3) N60P60K60.Results. It was found that the best nitrification ability was possessed by variants with fine combback and comb-back with soil-deepening treatment, in which the weighted average content of nitrate nitrogen was 3.29–3.33 mg/100 g, which is 35–36%; 26–28%; 43–44% more than with fine, conventional non-dump and dump treatment respectively. Plowing improved the conditions of phosphorus and potassium nutrition of plants by 25–37% and 6–14% compared to other treatments. When N30P30K30 and N60 P60 K60 were applied to the soil, the content of nitrate nitrogen increased by 46 and 91%, phosphorus — by 0–14% and potassium — by 6 and 21% compared to the nonfertilized background. More effective in terms of the effect on the productivity of spring wheat were comb-shaped treatments, where the average yield was 2.89–2.94 t/ha, which exceeded the usual plowing by 0.19–0.24 t/ha. The greatest increase in yield was obtained when combining the methodsseed treatment + spraying of vegetative plants with the biological preparation "BisolbiFit". On an unfertilized background, the increase in grain yield was -0.71, on the background of N30P30K30 — 1.04, on the background of N60P60K60 — 1.56 t/ha.

scholarly journals Effectiveness of various elements of grain cultivation technology

2021 ◽  
Vol 36 ◽  
pp. 07001
Author(s):  
Fedor A. Popov ◽  
Evgeniya N. Noskova ◽  
Lyudmila M. Kozlova
Keyword(s):  
Crop Rotation ◽  
Spring Wheat ◽  
Streptomyces Hygroscopicus ◽  
Winter Rye ◽  
Field Crop ◽  
Loamy Soil ◽  
Grain Crops ◽  
Cultivation Technology ◽  
Three Factor

The article presents the results of a long-term stationary three-factor experiment on sod-podzolic loamy soil to identify the effectiveness of various methods of basic and pre-sowing treatment of soil, the use of biological preparations in the technology of cultivating grain crops in six-field crop rotation. It was established that the most profitable elements of the technology in energy and economic terms will be: surface-cut treatment with KPS-4 cultivator and introduction of Azotovit and Phosphatovit biologics into the tillering stage of oat in a vetch-oat mixture for green feed; surface-cut treatment with KBM-4,2 cultivator or with pre-sowing treatment with a APPN-2,1 combined aggregate and introduction of Azotovite and Phosphatovite biological preparations into the soil before sowing winter rye for grain; ploughing with pre-sowing treatment with APPN-2,1 combined aggregate for spring wheat; surface-cut treatment with pre-sowing treatment with APPN-2,1 combined aggregate and introduction of biologic preparation based on strain Streptomyces hygroscopicus A4 at tillering stage of oat in pea-oat mixture for grain-hay; ploughing with KPS-4 cultivator and introduction of Pseudobacterin-2 biopreparation at barley tillering stage; ploughing with pre-sowing treatment with APPN-2,1 combined aggregate and introduction of biologic preparation based on strain Streptomyces hygroscopicus A4 at oat tillering stage.

scholarly journals Influence of mineral fertilizers on fertility of sod-podzolic soil, productivity and quality of grain crops

2017 ◽  
pp. 35-40 ◽  
Author(s):  
I. V. Lyskova
Keyword(s):  
Spring Wheat ◽  
Podzolic Soil ◽  
Mineral Fertilizers ◽  
Phosphorus Concentration ◽  
Soil Productivity ◽  
Winter Rye ◽  
Basic Norm ◽  
Increase In Productivity ◽  
Hydrolytic Acidity

Experiments were conducted in 2008.2015 in Kirov region. Effectiveness of liming, input of nitric (N90 kg/ha of acting matter) and increasing dozes of phosphoric fertilizers (50, 100, 150, and 200 kg/ha of acting matter) in complex with nitric-potassium fertilizers (90 kg/ha of acting matter each) on agronomical parameters of soil, productivity and grain quality of winter rye, spring wheat and oat was studied on stationary field experiment. In variant without liming and fertilizing significant acidification of soil was taken place (pH 3.9, Al 9.5 mg/100 g of soil) in compare with initial values (pH 4.5...4.7). Inputting N90P100-200K90 leads to increase in exchangeable and hydrolytic acidity, content of mobile aluminum (up to 13.6.15.4 mg/100 g, and phosphorus (up to 156.209 mg/kg on non-liming and 147.248 mg/kg on liming backgrounds at phosphorus concentration in soil solution 0.56.0.68 and 0.75.1.39 mg/l correspondingly). On the liming-free background, productivity of winter rye was in average 1.92, oat - 3.90, and wheat - 2.26 t/ha; liming increased productivity on 15.27, 13.29, and 16.32% correspondingly. Nitric fertilizers had significant influence in forming of addition yield. In variant N90 on the liming background 1.15 t/ha of winter rye grain, 1.6 t/ha of oat, and 0.78 t/ ha of wheat was gathered additionally and the highest recoupment of fertilezers with grain (12.6, 17.8, and 8.7 kg) was reached. Maximal levels in productivity of cereals obtained in variants with NPK input; tendency to increase in productivity because of increasing dozes of super-phosphate is marked on liming-free background. Nitric fertilizers significantly influenced on content of nitrogen, raw protein and gluten in spring wheat grain; correlation is marked between spring wheat productivity and content of raw protein (r = 0.79) and gluten (r = 0.78) in grain. Test weight of all crops was higher then basic norm independent on fertilizers input.

scholarly journals Research on the efficiency of soil melioration with modified organic fertilizer from pig manure

2021 ◽  
Vol 845 (1) ◽  
pp. 012056
Author(s):  
E A Gribut ◽  
M A Kulikova ◽  
T A Kolesnikova ◽  
O A Surzhko ◽  
G E Merzlaya
Keyword(s):  
Spring Wheat ◽  
Organic Fertilizer ◽  
Liquid Waste ◽  
Mineral Fertilizer ◽  
Soil Reclamation ◽  
Pig Manure ◽  
Mineral Fertilizers ◽  
Bird Droppings ◽  
Organic Mineral ◽  
Pig Farms

Abstract The most effective doses of the modified organic-mineral fertilizer (MOF), produced from non-contact pig manure in the conditions of the Rostov region for the purpose of soil reclamation, were determined. Experimental studies were carried out to determine the most effective dose of MOF based on non-contact pig manure. The dependence of the spring wheat yield on the use of a modified organic-mineral fertilizer based on liquid waste from pig farms fermented bird droppings and mineral fertilizers is determined. The equivalence of the effect of a modified organic-mineral fertilizer based on liquid waste from pig farms and fermented bird droppings, introduced in an equivalent dose, on plant biomass was established. When comparing the effects of different types of fertilizers, their toxicity was not established. The introduction of a modified organic-mineral fertilizer based on liquid waste from pig farms at a dose of 2 t / ha provided the highest biomass yield of 34-day-old plants of spring wheat of the “Zlata” variety, which reached 0.9 g/vessel and was 28.5% higher than the control value. A new organic mineral fertilizer with a pH of 8-10, with an organic content of up to 73% per dry weight, can be used for supporting the quality of liming and improving soil.

scholarly journals The formation of the crop, sowing qualities and yield properties of spring soft wheat seeds under the influence of mineral fertilizers in the conditions of the forest-steppe zone of the Middle Volga

2020 ◽  
pp. 23-27
Author(s):  
Lidiya Vasilievna Karpova ◽  
Anna Vasilievna Strogonova ◽  
Phedor Petrovich Chetverikov
Keyword(s):  
Spring Wheat ◽  
Mineral Fertilizer ◽  
Steppe Zone ◽  
Soft Wheat ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Spring Soft Wheat ◽  
Middle Volga ◽  
Complex Liquid ◽  
Wheat Seeds

The article presents the results of studies on the formation of the crop, sowing qualities, yield properties and biochemical composition of seeds of spring soft wheat (Tulaykovskaya Nadezhda variety) under the influence of complex liquid fertilizers with microelements in chelate form in the conditions of the forest-steppe zone of the Middle Volga. The application of mineral fertilizer Megamix increased the number of grains on one plant to 32.9–36.3 units, which exceeded the control by 1.1–4.5 units, or by 3.5–14.1%. The yield of spring wheat from the integrated application of the agrochemical increased to 3.90 t / ha, which is 21.1% higher than the control.

scholarly journals Influence of mineral fertilizers and seeding rates on the yield and quality of spring wheat grain

2020 ◽  
pp. 25-29
Author(s):  
Dmitry Aleksandrovich Kuznetsov
Keyword(s):  
Ammonium Nitrate ◽  
Spring Wheat ◽  
Mineral Fertilizer ◽  
Nitrogen Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Seeding Rate ◽  
Maximum Increase ◽  
Wheat Varieties ◽  
Germinating Seeds

The article presents the results of field research conducted in 2018-2019 on leached Chernozem of the Volga forest-steppe. The objects of research are varieties of spring wheat-Tulaykovskaya 10, Yoldyz and Tulaykovskaya 108. At different seeding rates of 5.0 and 5.5 million germinating seeds per ha, the effect of mineral fertilizers on 1 ha was studied. They were represented by a complete mineral fertilizer (azofoska) and fertilizing with a mineral nitrogen fertilizer in the tillering phase at doses of 30, 60 and 90 kg of AD/ha against this background. Analysis of the yield of spring wheat varieties indicates that the harvest of grain variety Yoldyz in variants with a seeding rate of 5.5 million germinating seeds per ha against the background of the application of ammonium nitrate at a dose of 60 kg of DA (2.52 t/ha) was superior to other varieties Tulaykovskaya 10 and Tulaykovskaya 108 (2.51 and 2.46 t/ha). The maximum increase in seed productivity when adding ammonium nitrate in the tillage phase of the crop was in Tulaykovskaya 10 variety (0.34 t/ha), the lowest in the Yoldyz variety (0.06 t/ha) compared to the variant with amofoska application in the pre-sowing cultivation. When increasing the doses of nitrogen fertilizers there was an increase in the water content of all the studied varieties by 1-3 PCs. While increasing the seeding rate from 5.0 to 5.5 million germinating seeds per 1 ha the number of grains in the ear changed on average for varieties by 1-2 PCs. Of all the studied varieties, the largest mass of 1,000 grains was in the Yoldyz variety (40.56 g) after azofoska application in the presowing cultivation + N60 during tillering at a seeding rate of 5.0 million germinating seeds per 1 ha, the smallest in the Tulaykovskaya 108 variety (37.87 g) after azofoska application at a dose of 0.15 t/ha at a seeding rate of 5.0 million   germinating seeds per 1 ha.

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