煤矸石利用方式对大豆籽粒中氮磷钾含量的影响

摘要

Soya crops have been used as experiment subjects through pot-culture method to study the influ⁃ence on the contents of nitrogen,phosphorus and potassium in soybean seeds with different utilization meth⁃ods and dosages of gangues in coal mining subsidence area reclamation soil. The results show:the NPK contents in pot-cultured soybeans would reach its peak when using mixed filling type and the compound⁃ing concentration between gangue and soil is about 20%~30%,which also means this the most appropriate method to utilize gangue for dryland crop.%以大豆作物为试验材料，用盆栽的方法研究以煤矸石为煤矿塌陷区复垦土壤材料时，其不同的利用方式和用量对大豆籽粒中养分元素氮磷钾含量的影响。结果表明，以混合式的填充方式且煤矸石与土壤的配比浓度为20%～30%时，盆栽大豆籽粒中的氮磷钾养分含量最高，说明煤矸石的此种利用方式适宜于旱地作物种植。