Abstract
Relevance. In the situation of radioactive contamination, the main factor in reducing the transition of radionuclides from soil to green feed is the use of potash fertilizer, the effect of which on the yield of fodder crops in light soils with low local fertility is not sufficiently studied, therefore, the goal of the studies is to establish the role of potash fertilizer in increasing the yield of fodder crops.Methods. Studies were carried out on lupine yellow, alfalfa variable, sudanese grass, millet, stockade beast, meadow timothy, annual raigras, oats, reed double-tine, meadow oatmeal, national team hedge in the south-west of the Bryansk region on floodplain sod cucumber, sod-podzolista.Results. The highest productivity of 23.1–26.2 t/ha of green mass was found when cultivating yellow lupin. It was found that the best efficiency of fertilizer systems in the cultivation of fodder lands was revealed on floodplain sod stubble sandy soil, for each added kg received from 59.0 to 72.5 kg of crop increase.
Highlights
It was found that the best efficiency of fertilizer systems in the cultivation of fodder lands was revealed on floodplain sod stubble sandy soil, for each added kg received from 59.0 to 72.5 kg of crop increase
Chernobyl: radiation monitoring of agricultural land and agrochemical aspects of reducing the consequences of radioactive soil pollution (on the 30th anniversary of the man-made accident at the Chernobyl nuclear power plant)
Summary
В обстановке радиоактивного загрязнения основным фактором снижение перехода радионуклидов из почвы в зеленые корма является применение калийного удобрения, действие которого на урожайность кормовых культур в условиях легких почв с низким естественным плодородием недостаточно изучено, поэтому цель исследований — установить роль калийного удобрения в повышении урожайности кормовых культур. Исследования проводили на люпине желтой, люцерне изменчивой, суданской траве, просе, костреце безостом, тимофеевке луговой, райграсе однолетнем, овсе, двукисточнике тростниковом, овсянице луговой, еже сборной в условиях юго-запада Брянской области на пойменной дерновой оглееной супесчаной, дерново-подзолистой песчаной и супесчаной почве. Наибольшую продуктивность 23,1–26,2 т/га зеленой массы обнаружили при возделывании люпина желтого. Установили, что наилучшая эффективность систем удобрения при возделывании кормовых угодий выявлена на пойменной дерновой оглееной супесчаной почве, на каждый внесенный кг д. For citation: Chesalin S.F., Smolsky E.V., Kharkevich L.P., Potash fertilizers in the productivity of fodder crops in conditions of radioactive contamination of the territory.
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