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三角公社地处珠江三角洲沙围田地区,稻田面积48000多亩,年亩产只有1000斤左右。1979年早造种植杂交稻80多亩,亩产820多斤,比常规品种增产100多斤。以后种植面积逐年扩大,产量也逐年上升,到1982年早造种到16700亩,晚造31800亩,全年亩产1675.8斤,其中出现了许多超千斤的高产片,超1300多斤的高产田。杂交水稻具有分蘖力强、同化力强、生活力强、适应性广的优点,但也存在着惹虫、染病(特别是纹枯病)、后期抗性弱(如早造后
Triangle commune is located in the sand Delta of the Pearl River Delta area, paddy area of 48000 mu, annual yield of only about 1000 pounds. As early as 1979, more than 80 mu of hybrid rice was planted, with 820 kilos of mu per mu yielding 100 kilos more than the conventional varieties. After the planted area has expanded each year, the output also increased year by year to 17,700 acres of early 1982, 31,800 acres late, the annual yield of 1675.8 kg, of which there are many super-kilograms of high-yield film, over 1300 kilos of high yield fields . Hybrid rice has the advantages of strong tillering ability, strong assimilation ability, strong viability and wide adaptability, but also has the advantages of inducing insects, diseases (especially sheath blight) and later resistance