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据各地试验,在不同的土壤施用腐植酸类肥料,都有一定的增产效果,但施用在瘠薄地比肥沃地的效果好;施用在粘性士、沙性士比一般的土壤效果好;对滨海合盐分高的盐碱地,肥效最为显著。在我省缺磷的黄泥田、红泥土最好配合磷肥施用。在施用量上,从各地施用的效果看,每亩施腐植酸铵一百斤作底肥,并配有农家肥,比等氮量的碳铵配有农家肥为底肥的苗情长势好。但究竟以多少量为适宜,应根据产品质量、作物需肥特点,土壤条件和产量水平的不同而定。由于我省土壤缺乏有机质和氮素,大部分偏酸缺磷。因此,用最可酌量多施。根据各地试验结果:一般水稻每亩施用150～250斤,小
According to the tests all over the country, humic acid-based fertilizers applied in different soils have a certain yield-increasing effect, but the application in barren land is better than that in fertile land; Salt and alkali high salinity, the most significant fertilizer. Phosphorus deficiency in the Yellow Paddy fields, red clay best with phosphate fertilizer application. In the amount of application, the effect of application from all over the view, per acre humic acid ammonium fertilizer for one hundred pounds of base fertilizer, and with farmyard manure, more than the amount of ammonium bicarbonate with manure base fertilizer well. However, how much is appropriate, should be based on product quality, crop fertilizer needs, soil conditions and yield levels may be different. Due to the lack of organic matter and nitrogen in the soil in our province, most of the acid and phosphorus deficiency. Therefore, with the most discretionary application. According to the test results around: General rice per acre 150 ~ 250 pounds, small