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1988～1990年,兰州市农牧局组织兰州市农科所等单位承包了兰州市红古区大白菜生产任务。为探索大白菜的各种增产措施,曾对农用稀土在大白菜上的适宜用量进行了探讨,试验结果如下:一、材料和方法试验设在兰州市大白菜主产区——红古区平安乡,土壤为厚层灌淤士,碱解氮
From 1988 to 1990, Lanzhou Municipal Bureau of Agriculture and Animal Husbandry organized Lanzhou Agricultural Science and other units contracted Lanzhou Honggu District cabbage production tasks. In order to explore a variety of measures to increase cabbage production, the appropriate amount of agricultural rare earth on Chinese cabbage was discussed, the test results are as follows: First, the material and method test is located in Lanzhou City, the main producing areas of Chinese cabbage - Hong ancient safe Township, thick-walled silt soil, alkaline hydrolysis of nitrogen