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壮苗是高产的基础。所谓壮苗,必须是具有发达的根系,根深叶茂,吸水吸肥能力强:抗逆性强,耐旱耐冻;根蘖生长协调,有效分蘖多,成穗率高;营养生长和生殖生长协调。因而能达到穗多、穗火而高产稳产,就是在十分不利的干旱等自然灾害条件下,壮苗仍可获得较好的收成。因此,在旱作小麦生产中,由于水分和管理条件的限制,培育壮苗就显得尤为重
Strong seedling is the basis of high yield. The so-called strong seedlings, must have a developed root system, deep roots, strong ability to absorb water absorption and absorption: strong resistance to drought and freeze-tolerant; root and stem growth and coordination, effective tillering more, ear percentage; vegetative and reproductive growth coordination. Which can reach more spikes, spike fire and high and stable yield, that is, under very adverse conditions such as drought and other natural disasters, seedlings can still get better harvests. Therefore, in the production of dry wheat, due to moisture and management constraints, nurturing strong seedlings is particularly important