论文部分内容阅读
在平凉市黑垆土玉米和小麦田进行了4种不同施肥制度长期定位试验,结果表明:平凉市黑垆土土壤生产力趋势从大到小为氮磷钾区、常规区、氮磷区、空白区,黑垆土对玉米供肥能力高于小麦,氮肥、磷肥、钾肥和有机肥配施可使黑垆土维持较高的生产力。
Long-term positioning experiments were conducted on four different fertilization systems in black mound soil corn and wheat field in Pingliang City. The results showed that the trend of soil productivity in black moutan soil of Pingliang City was NPK, conventional, N and P, blank District, black soil soil corn on fertilizer supply capacity higher than wheat, nitrogen, phosphate, potassium and organic fertilizer can make black mound soil to maintain a higher productivity.