scholarly journals Formation of grain sorghum grain yield by different systems of shoots depending on crop fertilizer

2021 ◽  
pp. 55-60
Author(s):  
R.E. Hryshchenko ◽  
O.G. Lyubchych ◽  
O.V. Glieva
Keyword(s):  
Seed Treatment ◽  
Crop Productivity ◽  
Coarse Grained ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Main Shoot ◽  
Foliar Fertilization ◽  
Biological Preparation ◽  
Biological Yield ◽  
Sorghum Grain

The article highlights the main results of research conducted in the Forest-Steppe of Ukraine on typical soils of the zone – dark gray podzolic coarse-grained light loam to study the productivity of sorghum grain variety Armida. The efficiency of seed treatment with biological preparation, mineral fertilizers, foliar fertilization and nitrogen fertilization during the growing season on crop productivity was established. The combination of these components provides an increase in crop yields. The fertilizer system, which provided for the introduction of N60P60K60, turned out to be optimal for sorghum cultivation. Crop productivity with this technology was 8,49 t/ha, and for sowing seeds treated with biological preparation – increased by 32%.The productivity of the crop increased by 30,6% and with complex application – seed treatment, application of N60P60K60 in the main and application of microfertilizer in foliar fertilization, compared to the option without seed treatment (7,74 t/ha).The percentage of grain of the main shoot, panicle and tillering shoots in the biological yield of the crop is determined. It is determined that the main panicle always has a higher percentage (62,8–70,4) in the formation of crop productivity. The growth of the role of the main shoot in the formation of the overall biological yield depends on the smaller number of side shoots.

scholarly journals EFFICIENCY OF IRON OXIDE NANOPARTICLE APPLICATION IN THE GROWING OF SPRING BARLEY AND SOYBEAN

2021 ◽  
Author(s):  
M. Novokhatsky ◽  
◽  
O. Bondarenko ◽  
N. Maidanovych
Keyword(s):  
Iron Oxide ◽  
Seed Treatment ◽  
Spring Barley ◽  
Soybean Seed ◽  
Average Level ◽  
Iron Oxide Nanoparticle ◽  
Forest Steppe ◽  
Tillage System ◽  
Biological Yield ◽  
Oxide Nanoparticle

The aim of this research was to study of efficiency of iron oxide nanoparticle application (nano Fe+) in the cultivation of spring barley and soybeans by different systems of basic tillage in the Forest-Steppe of Ukraine. Methods. The effectiveness of nano Fe+ applying was determined by determining the biological yield of the studied crops and its structure and comparison with the control version of the experiment (without the use of nanopreparation). The studied crops were spring barley and soybeans. The number of variants of the experiment were 16 (8 variants for each culture). Number of repetitions – three. The research was carried out according to the following scheme: factor A – tillage system (A1 – traditional, A2 – conservation, A3 – mulching, A4 – mini-till); factor B – iron oxide nano Fe+ (B1 – control (without the use of nano Fe+), B2 – the use of nano Fe+ for seed treatment at a rate of 5 mg/t). Used nanopreparation of black iron oxide magnetite is a polyvalent iron oxide (FeO - Fe2O3 - Fe3O4). Results of field research showed a tendency to increase the yield of barley and soybeans with the use of iron oxide nanoparticles in the treatment of seed material. The increase in the yield of spring barley was different depending on the system of basic tillage and ranged from 5 % (conservation system) to 25 % (traditional system). The most favorable conditions for the formation of spring barley yield within the experiment were formed by the mulching system of tillage, which together with the use of nano Fe+ allowed to form the biological yield of the crop at the level of 61,2 c/ha. The effect of direct exposure to nano Fe+ in the case of the mulching system was a 12 % increase in yield compared to control. The use of nano Fe+ on soybean crops helped to increase plant survival. Biological yield during soybean seed treatment nano Fe+ was higher in almost all tillage options. The greatest effect from the use of nano Fe+ was observed for the traditional tillage system (+ 55 % compared to the control). Conclusions. The results of the field experiment revealed a positive effect from the use of nano Fe+ in seed treatment in the technology of growing spring barley and soybeans. It is noted that nano Fe+ influenced the growth and development of the studied crops and the formation of their yields. The average level of biological yield of spring barley (for all applied tillage systems) without nano Fe+ treatment was 50 c/ha, and with the use of nanopreparation – 58 c/ha. For soybeans, the average level of biological yield for all studied systems without nano Fe+ was 17 c/ha, and with the use of nanopreparation – 21,6 c/ha.

scholarly journals THE INFLUENCE OF TECHNOLOGICAL METHODS OF CULTIVATION ON THE FORMATION OF STRUCTURAL ELEMENTS OF THE CROP OF VEGETABLE PEAS IN THE CONDITIONS OF THE RIGHT-BANK FOREST-STEPPE

2019 ◽  
pp. 21-29
Author(s):  
Ihor Didur ◽  
Voldemar Mostovenko
Keyword(s):  
Soil Nitrogen ◽  
Seed Treatment ◽  
Maximum Yield ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Structural Elements ◽  
Yield Level ◽  
The Right ◽  
Technological Methods ◽  
Number Of Seeds

Seed treatment with boron and molybdenum and rhizotorphine helped to increase the length of the stem. It generally provided better aeration of crops due to better light, which amounted to 87.9 cm for boron treatment and 88.5 cm for molybdenum treatment, increasing the number of seeds in beans from 7 to 8 pcs. However, the weight of 1,000 seeds decreased slightly, both for boron treatments up to 156.5 and for molybdenum treatments up to 154.3 g. In addition, the use of foliar fertilizers Nanovit Mono Bohr in the budding phase contributed to increasing the length of the stem to 91.2 cm, the number of seeds in beans to 9 pcs, the weight of 1,000 seeds to 161.4 g, and the yield level to 7.5 t / ha. In order to obtain the maximum yield of peas vegetable varieties of Skinado and Sommerwood at the level of 7-8 t / ha in the conditions of Vinnytsia it is necessary to add mineral fertilizers N40K60R60, (phosphoric and potash - under the basic cultivation of soil, nitrogen - under pre- sowing cultivation). Before planting vegetable peas, seed treatment with risotrophin, boron, molybdenum and as extra-root nutrition is carried out by Nanovite Mono Bor - 1 l / ha and Molybdenum Nanovite - 0.5 l / ha in the budding phase. Treatment of seeds with boron and molybdenum contributes to increasing the length of the stem, which in general provides better aeration of crops due to better lighting. Further study of the factors of intensification of the technology of growing vegetable peas, in particular, on the implementation of foliar infusions in the phase of seeding began to be needed.

scholarly journals PHOTOSYNTHETIC ACTIVITY OF VEGETABLE PEAS DEPENDING ON VARIETY FEATURES, LIMITATION OF SOIL AND NUTRITIONAL SYSTEM

2020 ◽  
pp. 42-50
Keyword(s):  
Growth And Development ◽  
Plant Nutrition ◽  
Seed Treatment ◽  
Dry Matter ◽  
Photosynthetic Activity ◽  
Mineral Fertilizers ◽  
Foliar Fertilization ◽  
Whole Process ◽  
Photosynthetic Potential ◽  
Sowing Seed

It is known that the growth and development of plants, including vegetable peas, depend on the presence and assimilation of nutrients by plants from the soil and their photosynthesis. With the deterioration of the stages of the process of one of the components changes the passage and functions of the other, which are one whole process of plant nutrition. Conducting the research, on average, during the period of full germination-technical maturity in the control variant with the application of mineral fertilizers N30P60K60, and pre-sowing treatment of seeds with rhizotorphin photosynthetic potential in pea varieties Skinado and Somerwood was 2.039 and 2.254 million m2 / day. While pre-sowing treatment of seeds with microfertilizer Vuxal Extra CoMo against the background of mineral fertilizers N30P60K60 and pre-sowing treatment of seeds with Rhizobophit in pea varieties Skinado and Somerwood compared to the control photosynthetic potential increased by 0.472 and 0.530 million m² di. The maximum indicators of photosynthetic potential in the varieties Skinado - 3,078 and Somerwood - 3,427 million m² days / ha were obtained on the variant of the experiment, where liming was carried out (1.0 norms per hectare) against the background of mineral fertilizers N30P60K60 and pre-sowing seed treatment Rhizobophit and microfertilizer Vuxal Extra CoMo and applied foliar fertilization with microfertilizers Vuxal Microplant during vegetative growth and Vuxal Calcium, Boron during budding. Depending on liming and foliar feeding the increase in dry matter reaches its maximum in the phase of technical maturity This is 1.020 and 1.173 million m² / day more than in the control. In the same variant, the maximum rates of dry matter growth were observed in Skinado varieties - 6.23 and Somerwood - 7.39 t / ha, which is 1.42 and 1.43 t / ha more than in the control.

scholarly journals AGROPHYTOCENOSIS FORMATION AND PRODUCTIVITY OF SPRING DURUM WHEAT IN CASE OF APPLICATION OF MINERAL FERTILIZERS

2021 ◽  
Vol 212 ◽  
pp. 25-32
Author(s):  
V.G. Vasin ◽  
◽  
A.N. Burunov ◽  
A.O. Strizhakov A.O. ◽  
◽  
...  
Keyword(s):  
Durum Wheat ◽  
Leaf Area ◽  
Seed Treatment ◽  
Maximum Yield ◽  
Wheat Yield ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Middle Volga Region ◽  
Photosynthetic Potential

The article shows the results of the research on the development of methods for increasing spring durum wheat yield (Triticum Durum) in the system of application of liquid mineral fertilizers: Megamix for pre-sowing seed preparation, treatment of crops during the growing season with mineral fertilizers N16P16K16 for pre-sowing soil preparation in the forest-steppe conditions of the Middle Volga region. The research was carried out on the experimental field of Samara State Agrarian University in 2017-2020. In the course of a three-factor field experiment, the main biometric parametres were assessed: sprout density and plant survivability in crops, formation of aboveground mass and accumulation of dry matter, photosynthetic activity with analysis of leaf area, formation of photosynthetic potential and photosynthesis net productivity. It was found that the best parametres are formed on the variants with seed treatment of with Megamix Seeds or Megamix Profi, followed by two-fold treatment during the growing season with Megamix Profi 0.5 l / ha (tillering phase) + Megamis Nitrogen 0.5 l / ha (flag leaf phase ), with application of N16P16K16 fertilizer. It was revealed that, in this case, the sprout density is formed at the level of 78.0 ... 77.7%. The usage of Megamix for seed treatment system + treatment of crops with Megamix stimulants ensures the maximum increase of the aboveground mass in the variant of seed treatment with Megamix Seeds and treatment of crops with Megamix Profi - 1582.0 g / m2; as well as a mixture of Megamix Profi + Megamix Nitrogen - 1614, 0 g / m2 after applying N16P16K16. In these variants, the maximum leaf area and photosynthetic potential of 0.776 ... 0.981 million m2 / ha days are formed and, as a consequence, the maximum yield with the parametres of 2.89 ... 3.03 t / ha. It was found that application of liquid mineral fertilizers in all variants of the experiment significantly increases spring durum wheat yield.

scholarly journals Influence of macro- and micro-fertilizers on biometry, performance and qualitaty of sunflower hybrids

2021 ◽  
pp. 161-169
Author(s):  
V. M. Totskyi ◽  
А. І. Len
Keyword(s):  
Growth And Development ◽  
Oil Content ◽  
Agricultural Research ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Research Station ◽  
Left Bank ◽  
Sunflower Seeds ◽  
Foliar Fertilization ◽  
Intensive Growth

Sunflower is a crop requiring intensive mineral nutrition, therefore, its cultivation demands reserves of nutrients in the soil, which can be replenished by applying mineral fertilizers. Purpose. Our purpose was to study the effects of fertilizers on the growth, development and yield of sunflower hybrids of different ripeness groups (bred at the Institute of Oil Crops) in the Left-Bank Forest-Steppe of Ukraine. Material and methods. The study was conducted at Poltava State Agricultural Research Station named after N.I. Vavilov in 2019–2020 The study object was processes of the growth and development of sunflower plants and formation of sunflower seeds depending on farming techniques. The study subject was sunflower hybrids Ahronomichnyi, Ahent and Serpanok. The following fertilizers were applied: 1) no fertilizers (control); 2) N32Р32К32; 3) N32Р32К32 + foliar fertilization of plants with urea (10 kg/ha) in the phase of 5–6 pairs of leaves; 4) N32Р32К32 + foliar fertilization of plants with microfertilizer Novalon Foliar (1 kg/ha) in the phase of 2–3 pairs of leaves; 5) N32P32K32 + foliar fertilization of plants with microfertilizer Novalon Foliar (1 kg/ha) in the phase of 5–6 pairs of leaves. Results and discussion. The results show that mineral macro- and microfertilizers contributed to more intensive growth and development of plants. Thus, the tallest plants, the largest leaves and calathidiums, and the highest 1000-seed weight were recorded hybrids Ahronomichnyi, Ahent and Serpanok with basic mineral fertilizers at a dose of N32Р32К32 + foliar fertilization with carbamide (10 kg/ha) or with microfertilizer Novalon Foliar (1 kg/ha). The maximum yields from hybrids Ahronomichnyi, Ahent and Serpanok were achieved with basic mineral fertilizers N32Р32К32 + foliar fertilization with microfertilizer Novalon Foliar (1 kg/ha) – 3.35 t/ha, 3.41 t/ha and 3.15 t/ha respectively. The gain to the control (no fertilizers) was 0.33 t/ha, 0.32 t/ha and 0.22 t/ha, respectively. Fertilization also affected the oil content in seeds. Mineral fertilizers N32Р32К32 decreased the oil content in the hybrid seeds by 1.1–1.7% compared to the ‘no fertilizers’ experiment. However, fertilization of plants during the growing period with urea or microfertilizer Novalon Foliar in combination with basic mineral fertilizers N32Р32К32 significantly increased the oil content in seeds. With the best yields, the highest output of oil from the hybrids was 1,406 kg/ha, 1,446 kg/ha and 1,356 kg/ha, respectively. Conclusions. Our results mainly confirm the results of other studies. Mineral fertilizers and microfertilizers promote more intensive growth and development of plants and increase the yields of sunflower seeds. However, there are some discrepancies in the oil content in seeds. Some researchers reported that mineral fertilization increased the oil content in seeds compared to the control (no fertilizers). We found that application of mineral fertilizers at a dose of N32P32K32 caused a decrease in the oil content in seeds, and only supplementary foliar fertilization with urea or microfertilizers increased this indicator

scholarly journals FOLIAR FEEDING AS A FACTOR IN INCREASING THE LEVEL OF GRAIN PRODUCTIVITY OF SPRING BARLEY

2020 ◽  
pp. 223-234
Author(s):  
Valentyna Tynko
Keyword(s):  
Spring Barley ◽  
Fertilizer Application ◽  
Barley Grain ◽  
Climatic Conditions ◽  
Coarse Grained ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Row Crops ◽  
Biological Products ◽  
The Right

The article presents the results of spring barley crops and the effect of foliar fertilization on them. Prospects and effectiveness of biological products as a basic fertilizer for cereals. Spring barley is a valuable food, fodder and technical crop. Pearl barley and barley groats are made from vitreous and coarse-grained two-row barley grain. Most barley is used for feed purposes. In 1 kg. grain contains 1.2 feed units and 100 g of digestible protein. Spring barley contains a lot of protein (9-12%), carbohydrates (70-75%), pentazoles (7-11%), sucrose (1.7-2%), fiber (3.8-5.5%), fat (1.6-2%), ash (2-3%). Spring barley grain is characterized by high nutritional value and is widely used in feed production, confectionery, brewing. However, in the dynamics of its yield there are significant fluctuations, which is associated with both agro-climatic conditions and organizational and economic. Having a short growing season, underdeveloped root system, the culture is quite demanding on the provision of basic factors of plant life, including nutrients. The system of fertilization of spring barley is determined primarily by predecessors. It has a valuable ability to make the best use of the aftereffects of organic and mineral fertilizers applied to the previous crop. If spring barley is sown after well-fertilized row crops (sugar beet, potatoes), under which 40-50 t / ha of manure and mineral fertilizers are applied within N80P80K80 - N120P120K120, then fertilizers are not applied directly under barley at all. Against this background, barley with proper care can form 40-50 kg / ha of grain. It is clear that in case of incomplete supply of sugar beets or potatoes with fertilizers, barley will require additional application of macronutrients. Barley responds very well to fertilizer application, especially in conditions of sufficient moisture. The increase in yield from mineral fertilizers can reach 15-20 kg / ha. To prevent lodging of plants, it is necessary to ensure the correct ratio of nutrients - nitrogen, phosphorus and potassium. Given the condition of the soil cover and low volumes of fertilizer application, we consider the issues of optimization of mineral nutrition of spring barley to be relevant and in need of refinement. An important component of the plant nutrition system is the use of microfertilizers. Therefore, the purpose of our research is to establish the reaction of spring barley to the complex use of microfertilizers, crop formation and grain quality in the conditions of the Right-Bank Forest-Steppe of Ukraine [3] Key words: spring barley, foliar feeding, biological products.

scholarly journals Fodder crops as raw materials for biofuel production

1970 ◽  
pp. 172-180
Author(s):  
О.О. Chernelivska ◽  
I.M. Dziubenko
Keyword(s):  
Biogas Production ◽  
Raw Materials ◽  
Crop Productivity ◽  
Biofuel Production ◽  
Nitrogen Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Forage Crops ◽  
Biogas Yield ◽  
Fertilizer System

Purpose. To study the adaptive elements of technology for growing high-stem forage crops (corn, sugar sorghum, sudanese grass, sorghum-sudanese hybrid) and features of biomass formation for biogas production in the right-bank forest-steppe of Ukraine. Methods. Field, laboratory, quantitative-weight, visual, calculation-comparative, mathematical-statistical. Results. The researche results provided the adaptive technology elements cultivation of high-stem forage cultures for the further using of biomass for biogas production. The use of complex mineral fertilizers (NPK) on crops of high-stem forage crops led to an increase in crop productivity compared to the application of nitrogen fertilizers (N). Transferring of the crops harvesting time from the phase of stem prolongation to the phase of the heads forming, and especially the milk-wax ripeness of the grain provided an increase in yield and quality of biomass. The application of the crop nutrition system and biomass harvesting in different phases of fodder crop development ensured the yield of corn at the level of 26.8-66.5 t/ha, sudanese grass – 26.6-60.2 t/ha, sorghum-sudanese hybrid – 34,1-114.7 t/ha and sugar sorghum – 37.3-105.4 t/ha, estimated yield of biogas from 2.83 to 32.54 thousand m3/ha and energy from biogas – from 51.9-709.4 GJ/ha, depending on the fertilizer option and harvesting period. Conclusions. The application of the optimal fertilizer system (N90P90K90) and harvesting of biomass in the phase of milk-wax ripeness of grain the highest productivity was provided by crops of high-stem forage crops: yield of corn biomass at the level of 54.9-66.5 t/ha, sudanese grass – 45.0-60.2 t/ha, sorghum-sudanese hybrid – 82.0-114.7 t/ha and sugar sorghum 74.3-105.4 t/ha, estimated biogas yield from 12.91 to 32.54 thousand m3/ha and energy from biogas – 281.4-709.4 GJ/ha, with a level of profitability from 7.1 to 177.6% dependently on the crop and nutrient background.

scholarly journals Productivity of giant micancantus and soil fertility status for fertilizer application

Agrology ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 131-136
Author(s):  
V. V. Ivanina ◽  
M. Ya. Humentyk ◽  
V. M. Katelevsky
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Growing Season ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
First Year ◽  
Forest Steppe ◽  
Foliar Fertilization ◽  
Giant Miscanthus ◽  
Terrestrial Biomass

Miscanthus giant is a tall perennial herbaceous plant with a well-developed root system, which is used for biofuel production. The aim of the study was to establish the effect of gi-ant miscanthus in the first year of growing season on the state of soil organic matter, removal and balance of nutrients and biological productivity of crops for fertilization. A four-year survey of the condition of miscanthus plantations was conducted at ‘Veselo Podilska’ research and breeding station during 2016‒2019 in the forest-steppe zone of Ukraine. Indicators of biomass productivity of giant miscanthus and the state of fertility of the grant for fertilizer application in the area of the left-bank of the Forest-Steppe of Ukraine for the production of solid biofuels are characterized. In the first year of the growing season, giant miscanthus produces more organic matter in the root system than in its terrestrial biomass ‒ 2.5 and 1.6 tons of dry matter/ha, respectively. It was found that foliar fertilization with microfertilizers significantly increased the yield of terrestrial biomass of giant miscanthus in the background of mineral fertilizers. The highest biological yield of ground mass of giant miscanthus was achieved with the introduction of N60P60K60 and two foliar fertilization with microfertilizer Vympel-K, 0.5 l/ha: yield of terrestrial biomass ‒ 3.1 tons of dry matter/ha with the advantage of control without fertilizers ‒ 1.5 tons/ha. In the first year of cultivation miscanthus giant uses a small amount of nutrients from the soil: nitrogen ‒ 20.4‒33.8 kg/ha, phosphorus ‒ 3‒5.3 kg/ha, potassium ‒ 6.1‒12.4 kg/ha . The application of N30P30K30 ferti-lizers was sufficient to form a balanced and expanded balance of nutrients in the soil. The appli-cation of mineral fertilizers did not affect the dynamics of organic matter in typical chernozem. Growing giant miscanthus in the first year of the growing season ensured the stability of the or-ganic matter content in the soil at the level of 4.04‒4.11%. At the same time, the content of mobile phosphorus at the end of the growing season decreased by 17‒18 mg/kg, potassium ‒ by 13‒43 mg/kg of soil. Reducing the content of mobile forms of phosphorus and potassium in the soil at the end of the growing season leads to efficient use of plant nutrients, chemical transformation of phosphorus into insoluble compounds and non-exchange adsorption of potassium ions by the soil complex in the biocenosis of miscanthus.

scholarly journals EFFICIENCY OF THE MODIFIED FERTILIZER AND MICROBIOLOGICAL PREPARATION ON SPRING BARLEY IN THE CONDITIONS OF THE FOREST-STEPPE OF THE VOLGA REGION

2021 ◽  
pp. 39-42
Author(s):  
Galina Saydyasheva ◽  
Kseniya Zayceva
Keyword(s):  
Spring Barley ◽  
Research Work ◽  
Mineral Fertilizer ◽  
Nutrient Content ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Biological Preparation ◽  
Ulyanovsk Region ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Studies to determine the effect of mineral, biomineral fertilizers and biological products on the content of nutrients (nitrogen, phosphorus and potassium) during the growing season in spring barley plants were carried out in 2015-2017 on leached heavy loam chernozem of Ulyanovsk region. The soil of the experimental site contained: humus 6.43...6.62 % (according to Tyurin), total nitrogen-0.26 % (according to Kjeldahl), mobile phosphorus and potassium-214 ... 228 and 101...117 mg/kg of soil, respectively (according to Chirikov), pHKCl – 6.3...6.8 (GOST 26483-85), hydrolytic acidity – 1.20...1.29 mmol/100 g of soil (according to Kappen). The scheme of the experiment included the following options: without fertilizers (control); Bisolbiphite (seed inoculation); N15P15K15 (regular azofoska); N15P15K15m (azofoska modified with BisolbiPhite); N7,5P7,5K7,5m (azofoska modified with BisolbiPhite in a half dose). We used a complex mineral fertilizer-azofoska in a dose of 15 kg d. v. per 1 ha of nitrogen, phosphorus and potassium and a microbiological preparation BisolbiFit, which serves as a modifier of seeds and mineral fertilizers. The drug is based on a strain of bacteria of the rhizosphere Bacillus subtilis H-13, isolated from chernozem soil. Inoculation of spring barley seeds with a biological preparation was carried out 1...2 days before sowing (400...600 g/t of seeds), mineral fertilizer was treated on the day of its application to the soil (4 kg/t of fertilizers). As the studied crop, the variety of spring barley Nutans 553, zoned in Ulyanovsk region, was sown on experimental plots. Mineral fertilizers and biological preparation had a positive effect on the nutrient content of spring barley plants. Under the influence of the studied fertilizer, the nitrogen content in the green mass of barley increased by 0.09...0.30%, phosphorus − by 0.09...0.18%, potassium-by 0.25...1.10 %, in relation to the variant where mineral fertilizer and microbiological preparation were not used. As a result of the correlation analysis, a positive relationship was established between the yield of barley and the content of nutrients in plants during the tillering, tubing and flowering phases: with nitrogen (r = 0.78; 0.83; 0.75), phosphorus (r = 0.80; 0.42; 0.71) and potassium (r = 0.66; 0.59; 0.91). As a result of this research work, it was found that the use of the studied fertilizers and the biological product BisolbiFit positively affected the content of the main nutrients (nitrogen, phosphorus and potassium) in spring barley plants in all phases of its development.

Ecological Evaluation of the Content of Heavy Metals in Soils of Agrocenosis of Western Siberia

2020 ◽  
Vol 24 (12) ◽  
pp. 52-57
Author(s):  
V.N. Yakimenko ◽  
G.A. Konarbaeva ◽  
V.S. Boiko ◽  
A.Yu. Timokhin
Keyword(s):  
Heavy Metals ◽  
Western Siberia ◽  
Field Experiments ◽  
Crop Productivity ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Ecological Evaluation ◽  
Agricultural Use ◽  
Excessive Accumulation

In stationary field experiments in the forest-steppe of Western Siberia, it was shown that long-term agricultural use of soil without the use of fertilizers caused a decrease in the soil content of heavy metals related to plant micronutrients — Cu, Zn, Co; the level of Pb, Cr, Sr has changed slightly. It was established that the long-term application of high, agronomically justified doses of mineral fertilizers, accompanied by a significant increase in the yield of cultivated crops, did not lead to an increase in the content of HM in the soil, compared with not fertilized areas. It was revealed that the unbalanced use of fertilizers, not ensured by the growth of crop productivity, contributed to the accumulation of HM in the soil. The necessity of monitoring the agro-ecological state of soils of agrocenoses in order to identify both excessive accumulation of heavy metals and micronutrient deficiency is substantiated.

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