一、返青期 在浇冬水的情况下,返青期主要矛盾是小麦生长与低温之间的矛盾。越冬后的小麦养分耗损大,管理不好极易死苗,所以应采用镇压、中耕、耙耱等措施,增温提墒保墒,促进麦苗早返青。 二、起身期 起身期是小麦春管的关键时期,适量的肥水可增加成穗数和穗粒数, First, the greening period In the case of winter watering, greening the main contradiction is the conflict between wheat growth and low temperature. After winter wheat nutrient depletion, management is very easy to dead seedlings, it should be used in repression, cultivation, rake 耱 and other measures, warming moisture entropy and promote early green wheat seedling. Second, get up Period is a critical period of wheat spring tube, the amount of fertilizer can increase the number of spikes and grains per spike,