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广东省南海县大沥公社的水稻,尤其是早稻,发赤现象是落后旧中历年来存在的问题,随着几年来大力开展兴修水利,深耕施肥的改良土壤运动,大大改善了落后田的面貌;水稻禾苗发赤现象虽然亦已大大减小,但是每年还有一定面积、发赤程度轻重不一的禾苗出现,特别是1960年早稻禾苗发赤的面积达4,691亩,占全公社水稻田面积的10%左右.由于水稻禾苗发赤危害而招致水稻减产损失现象,是相当严重的.根据访问农民获得资料,每亩田每年减收稻谷可达100—200斤,因此消灭水稻禾苗发赤现象也是获得水稻丰产,实现今年水稻苗产双千斤的重要关键之一.
Rice in Dali Commune, Nanhai County, Guangdong Province, especially red rice, is a problem that has lagged behind in the old years. With the vigorous development of water conservancy in recent years and the improvement of soil fertility by intensive fertilization, the appearance of backward fields has been greatly improved ; Although the redness phenomenon of rice seedling has also been greatly reduced, there are still some grasses with varying degrees of redness every year. In particular, in 1960, the area of blued grasses of early rice reached 4,691 mu, accounting for the entire commune paddy field area Due to the gramineous rice seedlings caused by the loss of rice yield loss phenomenon is quite serious.According to the access of farmers access to information, per acre paddy fields reduced by up to 100-200 kg per annum, so the elimination of rice seedling red phenomenon It is also one of the most important keys to gaining a high yield of rice and achieving a double kilogram of rice seedlings this year.