施石灰和秸秆还田对双季稻田土壤钾素表观平衡的互作效应

刘磊, 廖萍, 邵华, 刘劲松, 杨星莲, 王静, 王海媛, 张俊, 曾勇军, 黄山

Interactive effects of liming and straw return on apparent soil potassium balance in a double rice cropping system

LIU Lei, LIAO Ping, SHAO Hua, LIU Jin-Song, YANG Xing-Lian, WANG Jing, WANG Hai-Yuan, ZHANG Jun, ZENG Yong-Jun, HUANG Shan

图1 施石灰和秸秆还田对双季稻地上部生物量和钾素吸收的影响(2015-2018) CK、L、RS和L+RS分别表示对照、单施石灰、秸秆还田、秸秆还田配施石灰。误差线表示平均值的标准误差(n = 3)。不同小写字母表示在同一年份不同处理间差异显著(P < 0.05)。

Fig. 1 Effects of liming and straw return on above-ground biomass and K uptake in the double rice cropping system from 2015 to 2018 CK, L, RS, and L+RS indicate control, liming, straw return, and straw return combined with liming, respectively. Error bars represent the standard errors of the means (n = 3). Different lowercase letters indicate significant difference at P < 0.05 among treatments in the same year.