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据河北、河南两省11个县实验,大白菜喷施肥料精有较强的增产和抗病的效果。一般增产20-30％,多的达59％。河北平乡县科委高级农艺师梁文发同志在大白菜六叶一心和包心期分两次喷施150倍肥料精,结果比亩施20公斤尿素的增产150公斤。河南滑县城关镇亩喷500克肥料精比不喷的增产312公斤。1988年由於多雨潮湿,大白菜严重感染软腐病和霜霉病,造成大量减产或绝收,而喷过肥料精的则叶色深绿,植株健壮,轻感或无病,究其主要原因是肥料精中含有抗生素和硫酸铜等多种微量元素。在大白菜生育期,一般每亩喷施不应少于250,克(一袋),可不必再追其他肥料。喷施适期以包心期最好。由於肥料精呈微酸性,故可与大部分酸
According to Hebei, Henan Province, 11 counties experiment, Chinese cabbage fertilizer fertilizers have a strong yield and disease-resistant effect. The general increase of 20-30%, up to 59% more. Comrade Liang Wenfa, a senior agronomist at Hebei Pingxiang County Science and Technology Committee, sprayed 150 times of fertilizer finely twice in a single heart of cabbage and twice in a period of packing, resulting in an increase of 150 kg compared with that of 20 kg of urea. Chengguan Town, Huaxian County, mu sprayed 500 grams of fertilizer than spray does not increase the output of 312 kg. In 1988 due to wet and humid cabbage severe infection of soft rot and downy mildew, resulting in large-scale production or income, while spraying fertilizers are dark green leaves, plant robust, light or no disease, the main reason is Fertilizer contains antibiotics and copper sulfate and other trace elements. In the cabbage growth period, the general spraying should not be less than 250 acres per gram, grams (a bag), you no longer have to chase other fertilizers. Spraying period to the best package period. Because fertilizer is slightly acidic, it can be used with most acids