CAJ | 학술논문

通过采样调查,分析比较了江苏省海安县长期施用畜禽粪便稻田和施化肥稻田土壤氮素养分的剖面分布特征.结果表明:与邻近施化肥的稻田相比,长期施用畜禽粪便能显著提高土壤的全氮、碱解氮、硝态氮等养分含量,土壤剖面中的氮素分布呈上高下低的分布特征,耕层养分富集现象较为严重.长期大量施用畜禽粪便在提高稻田土壤氮素水平的同时,累积在土壤剖面中的硝态氮呈明显向下淋失的趋势.
통과채양조사,분석비교료강소성해안현장기시용축금분편도전화시화비도전토양담소양분적부면분포특정.결과표명:여린근시화비적도전상비,장기시용축금분편능현저제고토양적전담、감해담、초태담등양분함량,토양부면중적담소분포정상고하저적분포특정,경층양분부집현상교위엄중.장기대량시용축금분편재제고도전토양담소수평적동시,루적재토양부면중적초태담정명현향하림실적추세.
The profile distribution characteristics of the nitrogen in paddy soils were quantified by samples investigation after poultry manure long-time applied in Hai'an county, Jiangsu Province.The results showed that compared with chemical fertilized soil, there were significant increases of capacities of soil capacities of soil total nitrogen, hydrolysis-N and Nitrate-N by long-term poultry manure application.The level of nitrogen increased across the soil profile from the surface soil downwards after long-term poultry manure injected into soil and mainly accumulated on the cultivate profile.The investigation also indicated that Nitrate-N accumulation under organic management practices were always higher than that under chemical fertilizer managed, and there was an obvious tendency of nitrogen movement downward to depth soil profile by manure application.