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1980年,全市后季稻亩产362斤,是推广三熟制以来产量最低的一年。据调查,产量结构为:每亩有效穗28.42万,每穗总粒数54.95粒,空秕率38.62％,千粒重24.73克。与前六年平均数对比:每亩有效穗减少7.42万,每穗总粒数增加7.77粒,空秕率增加20.45％,千粒重减少1.92克。大家知道,水稻产量的高低,穗数、粒数、粒重的变化,除了决定于品种本身的遗传性外,主要同整个生长期间的环境条件有关。因此认真剖析一九八○年的气候条件、栽培管理状况与后季稻生长发育的关系,对接受灾年的经验教训,确定常年稳产的栽培措施是十分重要的。
In 1980, 362 kilos of rice were produced in the latter quarter of the city, the lowest yield since the promotion of the three-cropping system. According to the survey, the yield structure is: 288,200 effective spikes per acre, 54.95 spikelets per panicle, emptying rate of 38.62% and grain weight of 24.73g. Compared with the average of the previous six years, the effective panicle per mu decreased by 74,200, the total grain number per panicle increased by 7.77 grains, the rate of empty grain increased by 20.45% and the grain weight decreased by 1.92 grams. We all know that the level of rice yield, spike number, grain number, grain weight changes, in addition to the heredity of the species itself, the main growth period with the environmental conditions. Therefore, it is very important to carefully analyze the relationship between climatic conditions, cultivation and management conditions and the growth and development of the latter part of the 1980s. It is very important to accept the experiences and lessons learned from the disaster and to determine the cultivation measures for a steady and steady year.