【摘要】 试验采用营养极度缺乏的生土土壤,研究了施肥种类对大豆根系及产量的影响,结果表明:NPK+Org(有机肥)、Org、K、N四种施肥处理,根系总吸收面积较大;Org和P肥对大豆苗期根瘤的产生有促进作用,但P肥处理根瘤衰亡的速度过快;NPK+Org、Org处理的经济产量显著高于其他各处理,且NPK+Org处理的经济产量也显著高于单施Org处理。研究对人工造地、矿区复垦当年增产具有重要应用价值。更多还原

【Abstract】 The experiment studied the effects of different fertilizer treatments on soybean in raw soil with extremely lack of nutriments.The result showed that the absorbing area of the root system was larger in the treatments of NPK+org,org,K and N.Org and P could improve the formation of root nodule during the seedling stage of soybean,but P speeded up the death of root nodule.The economic yield of soybean treated with NPK+org and org was markedly higher than any one of the other treatments,and the yield treated with NPK+org was also significantly higher than those with org only.The study has an important practical value on reclaiming land,mining area and increasing production this year.更多还原