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铜渣肥是炼铜废渣经粉碎加工而成的一种含有多种元素的新肥料。近年来省内一些地方的试验证明对水稻、小麦等有一定的增产效果。为查明铜渣对棉花的增产效果,1977年我们在沔阳县红潭公社农科所石灰性冲积土上进行了棉花铜渣肥效试验。小区面积0.16亩,重复2次。棉花品种为“12132”,育苗移栽,移栽前亩施棉饼80斤,全生育期亩施氮素9斤。铜渣用量每亩40斤,于移栽时
Copper slag fertilizer is a waste of copper refining processed by a variety of elements containing a new fertilizer. In recent years, tests in some parts of the province have proved that they have a certain yield-increasing effect on rice and wheat. In order to ascertain the effect of copper slag on the yield increase of cotton, in 1977 we carried out the copper slag test on the calcareous alluvial soil of Hongtan Commune in Xingyang County. The plot area 0.16 mu, repeat 2 times. Cotton varieties “12132”, transplanting seedlings, before transplanting mu cake 80 pounds, the entire growth period of 9 kg nitrogen fertilizer. Copper residue dosage of 40 pounds per mu, when transplanted