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水稻在粮食作物中的生产水平较高,大面积生产中,平均单产在千斤以上已不罕见。目前的生产水平条件下,进一步提高其产量要投入较以往更多的物质和能量。然而,产量水平越高,单位投入的增产效果越小。到一定程度必定会得不偿失。因此,在较高产量水平条件下,如何再提高水稻产量是人们最为关切的问题之一。近几年,叶面宝这种植物生长调节剂的问世,为提高作物产量提供了一条经济、简
It is not uncommon for rice to produce higher yields in grain crops. In large-scale production, it is not uncommon for average yields to exceed one thousand pounds. Under the present level of production, it is necessary to devote more material and energy to the further increase of its output. However, the higher the level of output, the smaller the impact of increasing inputs per unit. To a certain extent will be worth the candle. Therefore, at higher production levels, how to further increase rice yields is one of the most concern issues. In recent years, the advent of YePao, a plant growth regulator, has provided an economical and simple way to increase crop yields