沈阳农业大学学报1999，Vol.30Issue(5)：502-505,4.
沈阳市农田土壤养分肥力状况及供肥量研究
The Fertility and Supplying Amounts of Soil Nutrients in the Arable land in Shenyang Area
杨伟奇 1徐玉佩 1张中源 1崔俊嫣 1李季植 1喻猛1
作者信息
摘要
Abstract
The typical fertilizers′expertments were carried on the maize and rice from 1984 to 1993. The results showed that the dependent rate of the two main crop on soil fertility was 52.6%, the other was the effectiveness of fertilizers. The supplying capacities of N, P and K were 63.56%, 83.6% and 85.5%. Meanwhile, the model y＝ 100x/(a+bx) was established (y,the max yield in fertilizing treatment; x, the yield in CK). And the correct coeffcients of avaiable nutrients were obtained.关键词
土壤养分肥力/供肥量/有效养分校正系数Key words
soil nutrient fertility/supplying nutrient amount/available nutrient correct coefficient分类
农业科技引用本文复制引用
杨伟奇,徐玉佩,张中源,崔俊嫣,李季植,喻猛..沈阳市农田土壤养分肥力状况及供肥量研究[J].沈阳农业大学学报,1999,30(5):502-505,4.
