一、肥水管理关 冬后应控制返青 肥，抑制无效分蘖过 量滋生，恶化群体，在 小麦拔节孕穗期酌情 追肥。一般在旗叶露 尖时追肥效果最好， 以达到增粒、增穗的 目的。 通过试验表明： 在小麦孕稳初期和灌 浆期各用奥普尔液肥 每亩７５克作叶面喷 施，具有明显的增加 有效穗、穗? First, the management of fertilizer and water should be controlled after turning off the green manure, inhibit the excessive growth of ineffective tillers, worsen the group, in the wheat jointing booting season discretionary top dressing. When the flag leaf tip sharp top dressing best, in order to achieve granulation, by the purpose of ear. Experiments show that: in the early pregnancy and grain filling stage each with Opal liquid fertilizer 75 grams per mu for foliar spray, with significant increase in the effective panicle, spike?