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水稻主要经济产量构成因素是有效穗数、每穗结实粒数和粒重,在生产实践中,我们常常盲目地追求密度,导致水稻穗数过多,每穗粒数、结实率、粒重反而下降,造成了减产。在穗数少时,每穗粒数虽多,但因穗数不足,总粒数也相应减少,产量也不高。因此在栽培过程中,要使三个因素得到协调发展才能获得高产。1.苗床选择为了达到优质高产的目标,苗床一定要选择土壤肥沃,土质松软,便于播种的平坦田地。江西全都采用背风向阳,
In the production practice, we often blindly pursue the density, leading to excessive rice spikes, grains per spike, seed setting rate and grain weight instead Decline, resulting in reduced production. When the spike number is small, the number of grains per spike is large, but due to insufficient spike number, the total grain number also decreases correspondingly, and the yield is not high. Therefore, in the cultivation process, it is necessary to make coordinated development of the three factors in order to obtain high yield. 1. Seedbed selection In order to achieve the goal of high quality and high yield, seedbed must choose the fertile soil, soil soft, easy to sow the flat field. Jiangxi all leeward sunny,