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博白县1975年晚造开始试种杂交水稻,79年推广汕优组合以来,单位面积产量稳步上升,种植面积逐步发展,到81年种植面积扩大到34万多亩,占稻田面积的26.8％。几年来,杂交水稻一般亩产850斤左右,比同条件的常规种,商产高150—200斤;较高的亩产超1000斤,比常规种高300—400斤。1980年一造亩产超1000斤的大队、生产队有
Since Bobai County started experimenting with hybrid rice in the late evening of 1975 and the combination of Shanyou was promoted in 1979, the output per unit area has steadily risen and the area under cultivation has gradually developed. By 81 years, the area under cultivation expanded to 340,000 mu, accounting for 26.8% . In recent years, hybrid rice has a yield of about 850 kilograms per mu, 150-200 kilograms more than the conventional varieties with the same conditions and a high yield of over 1,000 kilograms, 300-400 kilograms more than the conventional ones. In 1980 a production of super-1000 kg of brigade, the production team there