摘要
西昌黄联耕地养分的输入输出研究雷圣远（四川农业大学，雅安６２５０１４）ＩｎｐｕｔａｎｄＯｕｔｐｕｔｏｆＳｏｉｌＮｕｔｒｉｅｎｔｓａｔＨｕａｎｇｌｉａｎｏｆＸｉｃｈａｎｇ．￥ＬｅｉＳｈｅｎｇｙｕａｎ（ＳｉｃｈｕａｎＡｇｒｉｃｕｌ－ｔｕｒａｌＵｎｉｖｅｒ...
he input and output of soil nutrients at Huanglian town of Xichang city was studies in 1984-1990. The results show that the input of soil nutdents N,P and K is less than their output andapplying potassium fertilizer has an evident effect on crop yield. The nutrient utilization efficien-cies are decreased about 50%, and the solving ways are discussed.
出处
《生态学杂志》
CAS
CSCD
北大核心
1995年第1期54-57,共4页
Chinese Journal of Ecology
