谷子在孕穗阶段,水份条件好坏是决定产量高低的重要因素。水份充足则产量高,不足则产量低。谷子最怕“胎里旱”、掐脖旱”、要“拖泥秀谷”。这是群众抗旱种谷的经验总结。因为,这一期间小穗进行分化,性器管逐渐形成,需水最为迫切,穗大小和粒多少都在这时决定。我省雨季集中在七、八月份。四月上旬播种的旱地谷子,因受春末夏初干旱的影响,往往发生死苗,同时孕穗期还不到雨季,因而穗小、粒瘪、子多,严重影响产量。科学 Millet in the booting stage, the water quality is an important factor in determining the level of output. Sufficient water yield is high, less than the low yield. Millet is most afraid of “fetal drought”, pinch neck dry “, to” drag mud show Valley. "This is the experience of the masses drought valley. Because during this period the spikelets differentiation, sex tube gradually formed, water demand is the most Urgent, the size of the spike and the number of grains are decided at this time.My rainy season in our province concentrated in July and August.During the dry millet sowing in early April, due to the late spring and early summer drought, often occur dead seedlings, but also booting period Less than the rainy season, so the ear is small, grain deflated, more than a child, seriously affecting the yield