山东夏玉米土壤干旱阈值研究与影响评价

董智强,李曼华,李楠,薛晓萍,陈辰,张继波,赵红,侯英雨,潘志华

The Thresholds of Soil Drought and Its Impacts on Summer Maize in Shandong Province

DONG ZhiQiang,LI ManHua,LI Nan,XUE XiaoPing,CHEN Chen,ZHANG JiBo,ZHAO Hong,HOU YingYu,PAN ZhiHua

表4 夏玉米苗期、穗期与花粒期划定（日序）

Table 4 The determination of seedling stage, ear stage and grain stage of summer maize (Day of year)

生育时期 Growth period 日序区间 Interval of day of year 苗期Seedling stage 177-196 穗期Ear stage 214-233 花粒期Grain stage 243-262