石灰用量对水稻油菜轮作区土壤酸度、土壤养分及作物生长的影响

闫志浩,胡志华,王士超,槐圣昌,武红亮,王瑾瑜,邢婷婷,余喜初,李大明,卢昌艾

Effects of Lime Content on Soil Acidity, Soil Nutrients and Crop Growth in Rice-Rape Rotation System

ZhiHao YAN,ZhiHua HU,ShiChao WANG,ShengChang HUAI,HongLiang WU,JinYu WANG,TingTing XING,XiChu YU,DaMing LI,ChangAi LU

表4 水稻季土壤pH、土壤养分、养分吸收量和产量等指标间相关性分析

Table 4 Correlation analysis between soil pH, soil nutrient, nutrient uptake content and yield in rice season

产量 Yield 吸氮量 N uptake content 吸磷量 P uptake content 吸钾量 K uptake content 速效氮 Available N 有效磷 Available P 速效钾 Available K 交换性钙 Exchangeable Ca2+ 交换性镁 Exchangeable Mg2+ 吸氮量 N uptake content 0.914* 1 吸磷量 P uptake content 0.791 0.858* 1 吸钾量 K uptake content 0.858* 0.972** 0.870* 1 速效氮 Available N 0.857* 0.966** 0.909* 0.920** 1 有效磷 Available P -0.784 -0.79 -0.574 -0.776 -0.641 1 速效钾 Available K -0.781 -0.819* -0.466 -0.819 -0.649 0.910* 1 交换性钙 Exchangeable Ca2+ 0.894* 0.853* 0.532 0.817* 0.714 -0.824* -0.950** 1 交换性镁 Exchangeable Mg2+ 0.896* 0.811 0.476 0.728 0.694 -0.768 -0.0891* 0.976** 1 pH 0.932** 0.836* 0.576 0.798 0.694 -0.878* -0.923** 0.976** 0.959**