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Position: Home > Articles > Effects of Mixing Humic Acid and Urea on Ammonia Volatilization and Maize Growth Chinese Journal of Soil Science 2013 (4) 934-939

腐植酸尿素对土壤氨挥发和玉米生长的影响

作  者:
许俊香;邹国元;孙钦平;高利娟;刘本生;李吉进
单  位:
北京市农林科学院植物营养与资源研究所
关键词:
腐植酸尿素;氨挥发;玉米生长
摘  要:
采用土壤培养试验和玉米盆栽试验,对比研究了普通尿素(U)、腐植酸尿素(UHA)和添加脲酶抑制剂的尿素(U+NBPT)对土壤氨挥发和玉米生长的影响。结果表明:U、UHA和U+NBPT处理的氨挥发累积量占施氮总量的比例依次是0.565%、0.375%和0.091%;其中UHA处理与U相比,降低氨挥发累积量33.5%,U+NBPT处理与U和UHA相比分别降低氨挥发总量84.0%和75.9%。施用腐植酸尿素促进了盆栽玉米的生长,与普通尿素相比,玉米棒干物重增加33.9%,吸氮量增加24.0%,氮肥利用率增加7.4个百分点。腐植酸尿素降低了土壤氨挥发,有效促进了玉米氮素吸收,增加了氮肥利用率,因而有较大的应用潜力。
译  名:
Effects of Mixing Humic Acid and Urea on Ammonia Volatilization and Maize Growth
作  者:
XU Jun-xiang,ZOU Guo-yuan,SUN Qin-ping,GAO Li-juan,LIU Ben-sheng,LI Ji-jin*(Institute of Plant Nutrition and Resources,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097,China.)
关键词:
Urea humate;Ammonia volatilization;Maize growth
摘  要:
Soil incubation experiment and pot experiment were conducted to study the effects of different nitrogen fertilizers including common urea(U),urea with humic acid(UHA) and urea with NBPT(U+NBPT) on ammonia volatilization and maize growth.The results showed that the ratios of ammonia volatilization amounts accounting for N application rates of U,UHA and U+NBPT treatments were 0.565%,0.375% and 0.091% respectively in the soil incubation experiment.When compared to U treatment,applying UHA could decrease the volatilization amount by 33.5%,while the corresponding value of U+NBPT treatment were 84.0% and 75.9% compared to U and UHA.Applying UHA could increase the dry weight of corn cob by 33.9%,N uptake of corn cob 24.0% and N use efficiency by 7.4 percentage points in the pot experiment.As a result,the humic acid urea had a widely utilization potential.

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