河南农业大学学报2012，Vol.46Issue(4)：442-447,6.
测土推荐施肥适用技术路线的研究
Study on an applicable technical route for fertilizer recommendation based on soil testing
摘要
Abstract
The failure probability of the fertilizer recommendations caused by testing the representative and mixed soil samples was analyzed, and the quantity relationship between the failure probability and the coefficient of variation was presented in this paper according to the coefficient of variation derived from the study on spatial variation of soil nutrients occurring in China. Study results show that the current coefficient of variation for testing main soil nutrients is greater than 30% . The potential output yielded by testing the individual samples will increase by 50% compared to the technical route for fertilizer recommendation based on testing overall samples. It indicates that the critical value of the variation coefficient should be selected according to the permissible fertilization errors. The suitable technical route for fertilization recommendation should be obtained by analyzing the spatial variation of soil nutrients.关键词
土壤速测/推荐施肥/测土施肥/土壤养分/空间变异Key words
rapid testing of soil nutrients/ fertilizer recommendation/ soil testing and fertilization/ soil nutrients/ spatial variation分类
农业科技引用本文复制引用
段铁城,胡小宁..测土推荐施肥适用技术路线的研究[J].河南农业大学学报,2012,46(4):442-447,6.基金项目
河南省重大农业科技成果转化项目(0911SCXY00494) （0911SCXY00494）
