Effects of Fertilizing Materials on Rapidly Available-N in Black Soil in Songnen Plain

查看全文 作　　者：[1]WangHongyan;[2]PengChi 机构地区：[1]DepartmentofAgronomy,NortheastAriculturalUniversity,Harbin150030,PRC;[2]StationofAgriculturalEnvironmentProtection,Harbin150036,PRC 出　　处：《Journal of Northeast Agricultural University(English Edition)》索引1996年第3卷第2期,共7页 摘　　要：The analyses on the mathematical models of the long- term location test in black soil in Song-nen Plain shows that farm manure and chemical fertilizers make great contribution to rapidly available-N in soil, while stalk makes less contribution. The most optimal pattern of fertilizing materials is 28 t / ha of farm manure, 630 kg / ha chemical fertilizers and 2.41 / ha of stalk. 关 键 词：松嫩平原 黑土 速效N 肥料 肥效 玉米