Vinos buryanami company NPK for dfferent husband of plants of proceed prtropodybnogo
Goal. To establish the factors of negative influence of weeds on plants of culture in the process of their joint vegetation. Task: to determine volumes of absorption of compounds of mineral nutrition by weeds.
Methods. Common and special methods: Field - study of the influence of conditions of cultivation and agro measures on productivity indicators of millet; laboratory - definition of quantitative and qualitative characteristics; statistical - the establishment of mathematical models and statistical dependencies between the investigated factors and processes.
Results On average, over the years of research, weed plants yielded 95 kg / ha of nitrogen for the density of crops of millet, 50 pct/m2, and the increase in the density of cultivated plants to 100-150 pct/m2 contributed to reducing the removal to 45-32 kg/ha . At the same time, the minimum indices of nitrogen weeds planting on the wheat grassland crops were 200 pct/m2 - 24 kg/ha, respectively. The removal of phosphorus at the density of crops of millet crops of 50 pct/m2 was 57,7 kg/ha of phosphorus, and from an increase in the density of cultivated plants to 100-150 pct/m2, the reduction of the removal was reduced to 27.8-19.9 kg/ha. At the same time, the minimum indices of removal of phosphorous weeds by plants on the crops of millet were the density of 200 pct/m2 - 14.4 kg/ha, respectively.
Conclusion. The conducted studies allowed to determine that, on average, over the years, weeds of plants per hundred cubic meters of poppy-stalks produced 109 kg/hectare of potassium, while increasing the density of crops to 100-150 pct/m2 contributed to a decrease in take-off to 51.8 -37.1 kg / ha. At the same time, the minimum parameters of the removal of potassium weeds by plants on millet crops were 200 pct/m2 - 27.2 kg/ha respectively
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