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一、中低产田的产量结构 (一)产量结构的不足之处作单晚和双晚栽培的杂交水稻,在中低产田上,其产量结构的不足之处,多数试点表现在亩总粒数较少,即产量库较小,少数试点同时表现在结实率偏低,即产量库不大,贮藏物质的供应也不足。应用微电脑对1983年40处调查资料的计算结果,亩总粒数的变异最大,对增产的贡
First, the yield structure of low and medium-yield fields (A) the inadequacies of the yield structure for single and double night cultivation of hybrid rice, in the middle and low yield fields, the lack of yield structure, the majority of the pilot performance in the total grain number of acres than Fewer, that is, the yield pool is smaller. A few pilot sites also show low seed setting rate at the same time, that is, the yield pool is not large and the supply of storage materials is insufficient. Application of microcomputer on the survey data of 40 in 1983, the calculation results, the largest variation in total grain number of acres, the yield tribute