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在1979—1981年的三年中,我县就有两年秋旱,另一年大涝,但这三年的皮棉单产仍接近百斤水平。究其原因,主要是我们在耕作栽培方面进行了一些改革。现将几项主要改革简述如下: 水旱轮作我县旱地是以棉麦两熟为主,棉花、小麦都是生长期长、耗肥量大的作物,连年棉麦两熟,土地用之过量,养之不足。有机质普遍下降,1、2、3类土壤有机质由1959年的2.0％、1.3％,0.8％,至1972年分别下降到1.24％、1.1％、0.99％。实行水旱轮作是对土壤用中有养、寓养于用的好办法。
In the three years from 1979-1981, there was a two-year autumn drought in my county and a flood in another year. However, the lint yield in these three years was still close to the level of 100 kilograms. The reason is mainly because we have carried out some reforms in cultivation and cultivation. Now a few major reforms are summarized as follows: Irrigation and Drought Rotation County dry cotton and wheat are based on two crops, cotton, wheat are long-term growth and consumption of large crops, cotton and wheat two years Liannian Pi, land use Excessive, insufficient support. Organic matter generally declined. Soil organic matter of types 1, 2 and 3 decreased from 2.0%, 1.3% and 0.8% in 1959 to 1.24%, 1.1% and 0.99% respectively in 1972. The implementation of drought and drought rotation is used in the soil, nurturing with a good way.