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建湖县建阳公社建东大队是稻麦两熟地区.1977年开始试种杂交稻,1978年全大队共种杂交稻1016亩,平均亩产1202斤,比常规稻南京11号每亩增产200多斤,全大队水稻总产比1977年多收31.74万斤,增长17.1%.这个大队1978年杂交稻的栽培方法,主要是采用温室无土秧小苗直栽和小苗寄秧移栽,同时也搞了10%的露地秧.现根据一年来的实践和所做的有关试验,对大面积杂交中稻亩产1200斤的栽培技术,作如下分析.一、产量构成因素杂交水稻同常规水稻一样,产量都是由每亩穗数,每穗粒数和千粒重所组成.我们调查的亩产1200斤以上田块的平均产量结构如下(表1):
Jianye commune in Jianhu County built east of the brigade is rice and wheat two ripe areas .1977 trial hybrid rice, 1978, a total of 1016 acres of hybrid rice, the average yield of 1202 kg, than the conventional rice Nanjing 11 per mu yield 200 kilos, the total output of paddy rice more than the total output of 317,400 kg over 1977, an increase of 17.1% .This brigade hybrid rice cultivation methods in 1978, mainly the use of greenhouse seedlings transplanting seedlings and seedling transplanting, at the same time Also engage in 10% of open field seedlings.According to the practice of the past year and the relevant experiments, the large area of hybrid rice per mu yield of 1200 pounds of cultivation techniques, the following analysis.First, the yield components of hybrid rice with conventional rice , The yield is composed of the number of spike per acre, the number of grains per spike and the weight of 1000. The average yield structure of the plots above 1200 kg per mu we surveyed is as follows (Table 1):