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肥料是作物的粮食,科学合理地施肥是小麦丰产的关健。小麦全生育期240—250天,其中自播种至返青约150天,占全生育期的五分之三,但由于气温低,生长最小,这一期间需肥量仅占全生育期的20%左右。返青后,随着气温的不断升高,生长量迅速增加,小麦由冬前的营养生长转入营养生长与生殖生长并进期,需肥量也随之增加,自返青至抽穗开花,虽时间较
Fertilizer is the food crop, scientific and rational fertilization is the key to wheat yield. The whole growth period of wheat is 240-250 days, of which about 150 days from sowing to rejuvenation, accounting for three-fifths of the whole growing period. However, since the temperature is low and the growth is minimal, the required amount of fertilizer during this period accounts for only 20% of the whole growth period. about. After returning to green, as the temperature continues to rise, the amount of growth rapidly increases. The wheat is transferred from vegetative growth before winter to vegetative and reproductive growth and progressively. The amount of fertilizer needed also increases.