CAJ | 학술논문

　　在二月兰-春玉米体系中，运用土壤氨挥发原位测定方法，分别在玉米基肥和追肥时期测定土壤氨挥发量，以探索二月兰翻压后土壤氨挥发特征。结果表明，基肥时期氨挥发量在0．94～3．27 kg/hm 2，氨挥发导致的氮损失率为1．34％～2．91％，占玉米季氨挥发总量的3．12％～6．80％；相同施氮水平下，有绿肥处理氨挥发量高于无绿肥处理，平均高出1．04 kg/hm 2。追肥时期，各施肥处理的氨挥发量为27．17～46．81 kg/hm 2，氨挥发引起的氮损失率为34．50％～41．61％，占氨挥发总量的93．20％-96．88％，相同施氮水平下有无绿肥处理之间无明显差异。从春玉米整个生育期来看，氨挥发随着施氮量的增加而增加，二月兰翻压对氨挥发无明显影响，各施肥处理春玉米季由于氨挥发导致的氮损失量为28．50～48．32 kg/hm 2，氮损失率为16．28％～20．20％。
　　재이월란-춘옥미체계중，운용토양안휘발원위측정방법，분별재옥미기비화추비시기측정토양안휘발량，이탐색이월란번압후토양안휘발특정。결과표명，기비시기안휘발량재0．94～3．27 kg/hm 2，안휘발도치적담손실솔위1．34％～2．91％，점옥미계안휘발총량적3．12％～6．80％；상동시담수평하，유록비처리안휘발량고우무록비처리，평균고출1．04 kg/hm 2。추비시기，각시비처리적안휘발량위27．17～46．81 kg/hm 2，안휘발인기적담손실솔위34．50％～41．61％，점안휘발총량적93．20％-96．88％，상동시담수평하유무록비처리지간무명현차이。종춘옥미정개생육기래간，안휘발수착시담량적증가이증가，이월란번압대안휘발무명현영향，각시비처리춘옥미계유우안휘발도치적담손실량위28．50～48．32 kg/hm 2，담손실솔위16．28％～20．20％。
In the February Orchid(Orychophragmus violaceus)/Spring Maize(Zea mays L.)system,ammonia volatilization was investigated by the method of in situ field determination during the basal and top dressing fertiliza-tion periods of spring maize to study the characteristics of ammonia volatilization after the February Orchid was in-corporated into soil as green manure.The results showed that the ammonia volatilization amounts ranged from 0.94 kg/ha to 3.27 kg/ha after the basal fertilization,the N loss rates resulted from ammonia volatilization were 1.34%-2.91%,accounting for 3.12%-6.80%of the total ammonia volatilization amounts of the whole spring maize sea-son.Under the same nitrogen application levels,the ammonia volatilization amounts of treatments with green manure were averagely 1.04 kg/ha higher than those without green manure .After top dressing fertilization,the ammonia vol-atilization amounts were 27.17-46.81 kg/ha,and the N loss rates caused by ammonia volatilization varied from 34.50%to 41.61%,accounting for 93.20%-96.88% of the total ammonia volatilization amounts .No obvious differences were observed between the treatments with and without green manure .In general,the ammonia volatiliza-tion increased as a result of the N addition ,while was little affected by the green manure .During the whole spring maize season,total ammonia volatilization amounts ranged from 28.50 kg/ha to 48.32 kg/ha in the treatments of ferti-lization,meanwhile,the N loss rates caused by ammonia volatilization varied from 16.28%to 20.20%.