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1982、1983两年,峡江县粮食总产每年递增12％以上。增产的原因就科学技术来说,在品种安排中较大辐度地扩大中熟品种的栽培面积,发挥中熟品种的增产优势,是重要措施之一。以1981年同1993年比较,1981年全县早稻早、中、迟熟品种的搭配比例为1.2:5:3.8;而1983年的比例为0.5:8.2:1.3。其中中熟品种扩大了64％,早、迟熟品种分别缩小了58.3％和65.8％(熟期的划分,按全生育期早熟<105天,中熟105～120天,迟熟>120天)。
In 1982 and 1983, the total grain output in Xiajiang County increased by more than 12% each year. Reasons for increasing production As far as science and technology are concerned, it is one of the important measures to expand the cultivated area of medium-maturing varieties more extensively in variety arrangements and to make full use of the advantage of increasing production of middle-maturing varieties. Compared with 1993 in 1981, the proportion of early, middle and late ripening varieties in early rice in 1981 was 1.2: 5: 3.8 in comparison with 0.5: 8.2: 1.3 in 1983. Among them, medium maturing varieties expanded by 64%, early maturity and late maturing varieties reduced by 58.3% and 65.8% respectively (maturing period was divided by 105 days in the whole growth period, 105 to 120 days in maturity, 120 days in maturity) .