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几年来的实践告诉我们:同样的产量水平,在不同年份的气候条件下,产量结构有很大的差异。以千斤产量水平为例,据偃师县岳滩大队、新乡县宋庄大队、温县赵保大队、沁阳县新店大队、博爱县后桥大队、密县纸坊大队的典型地块调查,1975—1977年三年间郑引1号亩产千斤的产量结构变化是:1975年,每亩穗数35—39万,平均37.6万,每穗粒数36—41粒,平均38.8粒,千粒重36—38克,平均37.9克;1976年,每亩穗数35—41万,平均37.4万,每穗粒数36—45粒,平均40.7粒,千粒重33—36克,平均34.9克;
Years of practice tell us: the same level of output, in different years of climatic conditions, the yield structure is very different. Take the production level of jack-up as an example. According to the typical plot survey of Yueshi County Yue Beach Brigade, Xinxiang County Songzhuang Brigade, Wen County Zhao Bao Brigade, Qinyang County Xindian Brigade, Bei County Houqiao Brigade and Mi County Paper Mill Brigade, In the three years from 1975 to 1977, the yield structure change of Zheng-Yin-1 on per-mu yield was: in 1975, the number of spikes was 35-39 thousand per mu, with an average of 376,000, 36-41 grains per spike, an average of 38.8 grains and a thousand grain weight of 36 -38 grams, an average of 37.9 grams; 1976, per mu spike 35-41 million, an average of 374,000, the number of grains per spike 36-45, an average of 40.7 grains, grain weight 33-36 grams, an average of 34.9 grams;