CAJ | 학술논문

采用室内恒温好气培养法，通过在土壤中添加复合肥、枯落物和牛粪，探讨不同添加物对冬枣林模拟土壤氮含量及矿化量的影响。结果表明，培养过程中，除对照外，添加复合肥土壤的NH4+ N 含量最高，枯落物次之，牛粪最低(P <0.05)；不同处理土壤 NO3- N 含量的变化不显著(P >0.05)，氮素矿化量差异显著(P <0.05)，表现为复合肥处理>枯落物处理>牛粪处理>对照；其中对照土壤的氮素矿化量呈负值，无机氮随时间而消耗；不同添加物处理的土壤氮矿化量为正值，表明添加物的施加促进了土壤氮的矿化过程，因此，在冬枣栽培区施肥管理中，可探讨按照适宜比例施加复合肥、枯落物、牛粪和农作物的秸秆，以促进土壤中氮的转化与有效利用。
채용실내항온호기배양법，통과재토양중첨가복합비、고락물화우분，탐토불동첨가물대동조림모의토양담함량급광화량적영향。결과표명，배양과정중，제대조외，첨가복합비토양적NH4+ N 함량최고，고락물차지，우분최저(P <0.05)；불동처리토양 NO3- N 함량적변화불현저(P >0.05)，담소광화량차이현저(P <0.05)，표현위복합비처리>고락물처리>우분처리>대조；기중대조토양적담소광화량정부치，무궤담수시간이소모；불동첨가물처리적토양담광화량위정치，표명첨가물적시가촉진료토양담적광화과정，인차，재동조재배구시비관리중，가탐토안조괄의비례시가복합비、고락물、우분화농작물적갈간，이촉진토양중담적전화여유효이용。
A laboratory aerobic incubation test is conducted under constant temperature to study the mineralization and variation of nitrogen in soil of Ziziphus j uj ube Land.The results show that after 120 days incubation,soil content of ammonia nitrogen and nitrate nitrogen and mineral nitrogen in different treatments present the following trend:NPK treatment>litter treatment>cow manure treatment>con-trol treatment,respectively.However,mineralization of control treatment is negative,and positive in soil with additive.It indicates that additive accelerates the process of mineralization.