摘要
黑土开垦种植后,土壤肥力呈下降趋势。单施化肥能提高作物产量,但土壤孔隙性、结构性较差。有机肥与化肥配合施用,土壤有机质呈增加趋势,有利于土壤物理环境的改善。玉米与大豆、牧草、绿肥等轮作、间作也有利于物理性状的改善。
Since fresh black soil was cultivated,soil fertility has showed a decreasing trend.Application of inorganic fertilizer can increase crop yield,but cause some damage tosoil porosity and soil structure.Mixing application of organic and inorganic fertilizer is fa-vorable to increase amount of soil organic matter and to improve soil physical environ-ment.The rotation of corn-soybean,corn-lucerne and intercrop of corn-sweet clover are al-so helpful to the physical enviromental improvement of soil.
出处
《吉林农业科学》
CSCD
北大核心
1993年第4期41-44,共4页
Journal of Jilin Agricultural Sciences
关键词
施肥
种植方式
土物理性质
黑土
Appliction of fertilizer
Way of plant
Soil physical properties
