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根外追肥应用于一些作物上,均获得增产效果。我们在黄连的栽培中,采用根外追肥,现将结果简报如下。一、材料与方法实验场地:我们选用石柱县黄水区海拔1700米的黄连地,土壤为黄棕壤。分为两组,种苗是同批黄连苗。第一组实验为1977～1983年,实验田2.4亩,对照田1.2亩;第二组实验为1978～1984年,实验田2.38亩,对照田1.4亩。
Root top dressing applied to some crops, are to increase production. We are in the cultivation of Coptis, the use of root top dressing, the results of briefings are as follows. First, materials and methods Experimental site: We use Shishu County, Huangshui 1700 meters above sea level Coptis site, yellow brown soil. Divided into two groups, seedlings are the same batch of berberine seedlings. The first experiment was from 1977 to 1983, with 2.4 mu of experimental field and 1.2 mu of comparison field. The second experiment ranged from 1978 to 1984, with 2.38 mu of experimental field and 1.4 mu of controlled field.