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进入春季之后,河南省小麦相继进入返青、起身、拔节期,小麦生长由冬前以根、蘖、叶等营养生长为主的时期转变为根、叶、蘖、茎、穗等营养生长与生殖生长同时并进的时期,群体和个体发展迅速,植株生长量大、需肥需水也多,是小麦全生育期变化最大和决定产量的关键时期。为客观分析
After entering the spring, wheat in Henan province entered into greening, upright and jointing stages one after another, and the growth of wheat changed from vegetative growth to root, leaf, tiller, stem, spike and other vegetative growth by the winter before root, tiller, leaf and other vegetative growth Growth at the same time and the times, groups and individuals develop rapidly, plant growth, need more fertilizer and water is the most important changes in the whole growth period of wheat and determine the key period of production. For objective analysis