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基于青海高原以及西北地区春小麦分蘖期和有效分蘖期短的事实,在大田生产中采用大播种量、高基本苗的措施,实现“以籽保苗、以苗保穗、以穗保产”的目的。目前青海灌区亩播种量一般为17.5—22.5公斤,高者达25—30公斤,亩保苗30—40万;山旱地亩播种量一般为15—20公斤,高者达22.5公斤,亩保苗25—30万。大播种量、高基本苗也确实获得了高产,但这是否就是春小麦高产唯一途径呢?
Based on the fact that the tillering stage and the effective tillering stage of spring wheat in the Qinghai Plateau and the northwestern region are short, planting seeding and high basic seedlings are adopted in the field production to achieve the goal of “seedling with seedlings, spikeling seedlings with seedling and spike production” . At present, the amount of sown seeding in Qinghai irrigated area is generally 17.5-22.5 kg, the highest is 25-30 kg, and the reserve of mu is 300-400 thousand mu. The dry seeding area of mountain dry land is generally 15-20 kg, the highest one is 22.5 kg, 300000. Seeding capacity, high basal seedlings did indeed get high yield, but is this the only way spring wheat yield?