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硝酸稀土是一种新型的类似肥料的物质。它的主要成分是镧、铈、镨、镱、钕、铒、钬、钐、钆等元素。这种资源在国内十分丰富。为了探明硝酸稀土对花生的增产效果,从1982年开始,在商丘、新郑、通许、宁陵、南阳、开封、长垣、尉氏、兰考等县农科所及农技站基点,进行了一系列的田间试验示范,在院内进行了盆栽试验。通过三年来的研究,取得了一些结果,整理于后。试验概况试验主要安排在砂质黄潮土地带,它的表层(0—20cm)养分状况如下:有机质0.556—1.21％,平均为0.795％;全N0.044
Rare earth nitrate is a new type of fertilizer-like substance. Its main components are lanthanum, cerium, praseodymium, ytterbium, neodymium, erbium, holmium, samarium, gadolinium and other elements. This kind of resource is very rich in China. In order to ascertain the effect of rare earth nitrate on the peanut production, from 1982 onwards, carried out in Shangqiu, Xinzheng, Tongxu, Ningling, Nanyang, Kaifeng, Changyuan, Weishi, Lankao counties A series of field experiment demonstration, carried out in the hospital pot test. After three years of research, some results have been obtained and sorted out. Test profile The experiment was mainly conducted in the sandy yellow-brown soil area. The nutrient status of its surface layer (0-20cm) was as follows: 0.556-1.21% of organic matter with an average of 0.795%; all of N0.044