中国玉米主产区土壤养分的空间变异及影响因素分析

赵晴月,许世杰,张务帅,张哲,姚智,陈新平,邹春琴

Spatial Regional Variability and Influential Factors of Soil Fertilities in the Major Regions of Maize Production of China

ZHAO QingYue,XU ShiJie,ZHANG WuShuai,ZHANG Zhe,YAO Zhi,CHEN XinPing,ZOU ChunQin

表8 土壤养分含量与施肥量的相关分析

Table 8 The correlation of soil fertilities with fertilizer rates

土壤养分 Soil fertilities 施氮量 N rate 施磷量 P2O5 rate 施钾量 K2O rate pH 0.066 -0.013 -0.248** 有机质 Organic matter -0.129** -0.101** -0.022 全氮 Total N -0.132** -0.099** -0.032 有效磷 Olsen-P -0.011 0.078* 0.172** 速效钾 Available K -0.067 0.005 -0.002