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我省棉花施用稀土微肥的试验研究,起步较早,但断断续续,步子不大。本所自1975年以来,进行了五次正式小区试验,并在波阳、九江县等红壤丘陵棉区,进行过生产示范,表现了良好的增产增收效益。例如波阳县棉种场1979年在红壤丘陵酸性棉地上进行了15亩生产示范。在棉花蕾期分别叶面喷施500、800、1000ppm三种浓度的稀土肥,亩产皮棉205.8～294.4斤,分别比对照增产4.6％、20.1％、14.0％。湖口县农牧局
Experimental study of cotton in our province using rare earth fertilizer, started earlier, but intermittent, the pace is small. Since 1975, we have conducted five formal district experiments and conducted demonstration production in the hilly cotton areas of red soils in Bo Yang and Jiujiang Counties, demonstrating a good yield increase and income increase. For example, cotton fields in Bo Yang County in 1979 red soil hilly acidic cotton on the 15 acres of production demonstration. In the bud stage of cotton were spray 500,800,1000 ppm three concentrations of rare earth fertilizer, lint yield 205.8 ~ 294.4 kg, respectively, compared with the control yield 4.6%, 20.1%, 14.0%. Hukou County Bureau of Animal Husbandry