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利用(１５)Ｎ示踪技术研究田间条件下施用农业有机废弃物鸡粪和稻草对化肥氮素利用率的影响。结果表明，施基肥时伴施这二种废弃物能提高作物对化学氮肥的利用率，当季小麦的化肥Ｎ利用率提高２５．５９％（稻草），土壤中残留的化肥Ｎ平均增加３８．１３％。后茬蕹菜的化肥Ｎ利用率提高２２．９６％（稻草）和４８．６６％（鸡粪）。土壤有机Ｎ分级结果表明，残留的化肥Ｎ主要以易被作物利用的酰胺态和氨基己糖态形式存在。
Study on the Effect of Applying Agricultural Organic Waste Chicken Manure and Straw on the Nitrogen Utilization Efficiency of Chemical Fertilizers under Field Conditions Using (15) N Tracing Technique. The results showed that with the application of these two types of wastes, the utilization rate of chemical nitrogen could be increased with the application of basal fertilizer. The utilization rate of chemical nitrogen in wheat increased by 25.59% (straw) and the average N in the soil increased by 38%. 13%. The utilization efficiency of N fertilizers increased by 22.96% (straw) and 48.66% (chicken manure). The results of soil organic N classification showed that residual N fertilizer mainly existed in the amidic and hexosaminyl forms which were easily utilized by crops.