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1982年我们在柑桔上作了喷布稀土的初步试验,取得一定效果(见《中国柑桔》1983年第4期17—18页)。1983年在我县大面积应用推广8665亩,同时又继续进行了多点不同浓度的对比试验。通过观测鉴定,进一步证明稀土对促进柑桔生长发育,提高着果率,增进果实品质确有多种良好效用。试验在6个地点进行,供试品种均为尾张温州蜜柑,土质为红壤。所用稀土系河南商丘冶炼化工厂生产的硝酸稀土(含氧化物38.5%),设100、200、
In 1982, we made a preliminary experiment of spraying rare earths on citrus fruits, and achieved some results (see “China Citrus”, No. 4, 1983, pp.17-18). In 1983, a large area of 8665 mu was popularized and popularized in our county, at the same time, more contrast experiments with different concentrations were continued. Through the observation and identification, further evidence of rare earth to promote the growth and development of citrus, improve the fruit rate, improve fruit quality, there are many good utility. The test was carried out in 6 locations, the test varieties are the end of Wenzhou Satsuma, soil is red soil. Rare earth Henan Shangqiu smelter chemical plant production of rare earth nitrate (oxide 38.5%), set 100,200,