摘要
7年定位研究在旱地土壤进行。结果表明:连年施用有机肥,可增加土壤有机质和各种养分,提高土壤供肥能力,增强保水性能,改善土壤结构;连年施用化肥,土壤有机质逐年减少;玉米根茬还田有利于培肥土壤;施用化肥配施有机肥并根茬还田,对增强旱地土壤供肥、保水能力、提高玉米产量起促进作用。
The research of fixed position of applying organic fertilizer was conducted on dry land for seven years.The result showed:It can increase the content of organic matter and the content of every nutrient,raise the a-bility of supplying fertilizer,strengthen the function of preserving moisture,and improve the soil structure to apply organic fertilizer every year.But the content of organic matter and the content of every nutrient reduce gradually with applying chemical fertilizer annually.It's advantageous to fertilizing soil to return the maize stubble to soil.It strengthens the abilities of supplying fertilizer and preserving moisture,and increases the maize yield to apply both of organic fertilizer and chemical fertilizer,and return the maize stubble to soil at the same time.
出处
《玉米科学》
CAS
CSCD
2003年第2期86-88,共3页
Journal of Maize Sciences
