Efficiency of methods of radical improvement of forage land on sod-podzolic loamy soils of the northern region of Belarus
2014
Kovganov,V.F.
英语. In course of a four-year research there was studied the effectiveness of indigenous methods of improvement. The research was realized in the conditions of the Republic of Belarus. As a result of research there was revealed that the most productive technique was turf grass cover after treatment, the yield of hay, depending on the mineral nutrition ranged from 70.1 to 103.2 c/ha. In addition, this acquisition provides the highest yield of the exchange energy, feed units and the collection of crude protein per hectare. Depending on the mineral nutrition gain with respect to growth of grass without improvement there were: 37.09-41.55 GJ/ha, 2.73-3.30 thousand and 478- 612 kg/ha respectively. Adding of nitrogen-phosphorus-potassium fertilizers on old-growth herbage increases the valuable species of herbs 22.6% increased productivity and provided hay 31.1 t/ha in relation to the unfertilized variant. In the studied methods of radical improvement on average over four years, the highest content of legume component was observed against the background of P90K140 – 38.8-44.8%, of which the largest part of the hybrid clover.
显示更多 [+] 显示较少 [-]俄语. В статье изложены результаты четырехлетних исследований по изучению эффективности приемов коренного улучшения. Выявлено, что наиболее продуктивным приемом оказалось залужение после обработки дернины, урожайность сена в зависимости от минерального питания находилось в пределах от 70,1 до 103,2 ц/га. Кроме этого данный прием обеспечивает наиболее высокий выход обменной энергии, кормовых единиц и сбор сырого протеина с 1 га. В зависимости от варианта минерального питания, прибавки по отношению к травостою без улучшения составили: 37,09…41,55 ГДж/га, 2,73…3,30 тыс. и 478…612 кг/га соответственно.
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