摘要
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。
We evaluated 4 treatment conmprised of various fertilization in corn and wheat field of dark loessial Soil in Pingliang city.The results showed that Pingliang dark loessial soil productivity trends were NPK area Conventional area NP area Blank area,and the soil supplies more nutrient for corn than wheat,nitrogen,phosphorus,potassium fertilizer and organic fertilizer could make dark loessial soil maintain high productivity.
出处
《甘肃农业科技》
2011年第8期28-30,共3页
Gansu Agricultural Science and Technology
关键词
施肥制度
黑垆土
地力贡献率
平凉市
Fertilization system
Dark loessial soil
Contribution rate of soil
Pingliang city
