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提高尿素利用率的途径尚来贵，丁宁平，马琼（平凉地区农科所平凉７４４０００）尿素是我国当前最主要的氮素化肥之一，而且随着工农业生产的进一步发展，尿素在氮素化肥中的比重将会逐渐增长，但尿素利用率却很低。据利用￣（１５）Ｎ标记尿素在水稻盆栽无渗漏和渗漏条件...
Urea is one of the most important nitrogenous fertilizers in our country. With the further development of industrial and agricultural production, The proportion of fertilizers will gradually increase, but the urea utilization rate is very low. According to the use of (15) N marked urea in the potting without leakage and seepage conditions ...