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长效包膜尿素是一种肥效周期长，利用率高的新型氮素化肥。１９９６～１９９７年在玉米上进行了肥效和用量试验，以期为该肥料的推广应用提供科学依据。１材料与方法试验设在河南省农科院试验地，供试土壤为黄潮土，０～２０ｃｍ土壤基础农化性状：有机质１０．５ｇ／ｋｇ...
Long-term coated urea is a long-term fertilizer efficiency, high utilization of new nitrogen fertilizer. From 1996 to 1997, fertilizer and dosage experiments were conducted on corn in order to provide a scientific basis for the promotion and application of the fertilizer. 1 Materials and Methods The experiment is located in the experimental site of Henan Academy of Agricultural Sciences, the test soil is yellow Chao soil, 0 ~ 20cm soil basic agrochemical properties: organic matter 10.5g / kg ...