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1977年晚季,龙海县委组织了27个单位进行稻麦三熟高产会战。收获期间,验收了51丘田,有31丘,64.7亩,亩产超过1200斤,其中10丘17.6亩,亩产1300多斤。这些亩产1200斤以上的高产田,有29丘为四优2号,一丘为 IR24号,一丘为红410。现将四优2号亩产1200～1300斤的因素结构和栽培技术作一番分析。(一)亩产1200～1300斤的因素结构挑出50块实收产量与理论产量基本一致(亩产误差<50斤)的会战田和试验区,测定产量因素的变异和相关,结果如表1所示:四个产量因素中,亩穗数、每穗粒数的变异较大,与亩产呈中度的正相关;二者的乘积,即亩总粒数,变异系数达13.1%,与亩产呈高度
In late 1977, Longhai County Party Committee organized 27 units for rice and wheat three-crop high-yielding battle. During the harvesting period, 51 Qiutian were checked and 31 mounds and 64.7 mu were harvested. Over 1,200 kilos of mu were produced, of which 10 mounds were 17.6 mu and the yield was 1,300 kilos. These high-yield fields yield more than 1200 pounds, 29 mound for the four excellent 2, a hill for IR24, a hill for red 410. Now four excellent 2 per mu yield of 1200 to 1300 pounds of structural factors and cultivation techniques for some analysis. (A) of the structure of factors 1200 ~ 1300 pounds per mu Select 50 yield and theoretical output is basically the same (yield error <50 pounds) of the battlefield and test area, the determination of the variation of yield factors and related results in Table 1: Among the four yield factors, the variation in the number of grains per ear and the number of grains per panicle is relatively large, which shows a moderate positive correlation with the yield per mu. The product of the two, namely, the total number of mu, has a coefficient of variation of 13.1% Height with the mu produce