春季麦田管理正处于小麦返青到拔节孕穗阶段,是形成并决定穗多、穗大、秆壮、穗齐的关键时期,因此对肥水的需要非常迫切。此期如果肥水不足则成穗减少,产量不高。春管时间性强,必须抓紧,并要因地、因苗制宜,根据不同情况采取不同措施,进行分类管理。一、早管返青,主攻穗多穗大我们这里,小麦常年一般多在2月中旬前后开始返青,这时日平均温度已达5℃以上,麦苗由暗变绿,新叶开始生长,这就是返青期。小麦返青后,主茎和年前分蘗开始猛长,新根和新分蘗又开始形成,而生殖器官(小穗)也转向迅速发育,因此需肥水较多。这时冬前分蘖已有自己的根系,和主茎长的差异不大, Spring wheat field management is in the wheat turning green to jointing booting stage, is to form and decide spike, spike, stalks, spike Qi critical period, so the need for fertilizer is very urgent. During this period, if the shortage of fertilizers reduces the number of mature spikes, the yield is not high. Spring time strong, we must seize the moment, and because of local conditions, due to different conditions, take different measures according to different situations, the classification management. First, early spring greening, the main attack Spike large us here, wheat perennial generally more than mid-February began to rejuvenate, when the average daily temperature has reached 5 ℃ above, wheat seedlings from dark to green, the new leaves began to grow, which is Green back. After the wheat regrouped, the tiller began to grow fiercely in the main stem and years ago, new roots and new tillers began to form again, and the reproductive organs (spikelets) also turned rapidly to develop more fertilizers. At this time winter tiller has its own root system, and the main stem length difference is not big,