水分关键期干旱胁迫对冬小麦矿质元素积累、产量和品质的影响

张继波, 薛晓萍, 张新刚, 邱粲, 谭方颖, 李楠

Effects of drought stress on mineral element accumulation, yield and grain quality of winter wheat during water critical period

ZHANG Jibo, XUE Xiaoping, ZHANG Xingang, QIU Can, TAN Fangying, LI Nan

表1 基于土壤相对湿度的农业干旱等级划分 单位：%

Tab.1 Classification of agricultural drought grades based on soil relative moisture

等级 类型 土壤相对湿度（Rsm） 0 无旱 Rsm≥60 1 轻旱 50≤Rsm<60 2 中旱 40≤Rsm<50 3 重旱 30≤Rsm<40 4 特旱 Rsm<30