摘要
稻田土壤中养分的平衡主要取决于养分的输入与输出,其又主要受肥料的输入与植物所带走的养分所制约。不同的肥料品种、不同的施肥时期都影响养分在土壤中的吸收、转化与淋失,从而影响养分的输入与输出。稻田土壤生态系统中养分循环的研究已有很多报道。主要是不同耕作制度、不同施肥水平下。
A field experiment was made for examining the effect of different fertilizers on the balance of nutrients and crop yields. It was showed that N and p were surplus in the treatment of pig manure application, but deficient in that of chemical fertilizer application, and K was deficient in the both. Crop yield was increased by using chemical fertilizer and orgaic manure. 4 years field experiment revealed that organic manure could increase the storage of natrients in soils and improve soil fertility and crop yield.
出处
《生态学杂志》
CAS
CSCD
北大核心
1989年第3期39-43,共5页
Chinese Journal of Ecology
关键词
施肥
水稻
土壤
fertilizer application, nutrient balance, rice, soil property.
