摘要
在水、旱田优化模式试验田里测定土壤蒸发量、含水率、地温、氮、磷、和有机质含量的结果表明,各优化模式不仅能增产、增值,而且能改善农田生态条件。
The soil samples were collected from random-blocked experiments and demonstration fields mentioned in the 1st and 2nd papers.The rate of evapor- ation,the water,nitrogen,phosphorus,potassium and organic matter content of soil,as well as the soil temperature were determined.The results indicated that the advanced models can not only increase the yierds and output value,but also improve the ecological enviromental conditions of the cropfields.
出处
《湖北农学院学报》
1990年第2期1-8,共8页
Journal of Hubei Agricultural College
关键词
立体种植
优化模式
生态效应
Stereoscopic
cultivation
advanced models
ecological effectiverness
