CAJ | 학술논문

在长期定位试验中研究了不同地下水位和施肥管理对水稻土土壤中的有机质和氧化铁含量的影响。结果表明：施用有机肥和化肥均能促进土壤有机质含量的增加，且高量有机肥的施用和高地下水位更有利于土壤有机质的积累；土壤无定形氧化铁含量同时受到有机质含量和土壤水分的影响，与土壤有机质含量显著正相关。可见，可以通过施肥和灌溉来调控土壤有机质和氧化铁含量，以提升土壤肥力。
재장기정위시험중연구료불동지하수위화시비관리대수도토토양중적유궤질화양화철함량적영향。결과표명：시용유궤비화화비균능촉진토양유궤질함량적증가，차고량유궤비적시용화고지하수위경유리우토양유궤질적적루；토양무정형양화철함량동시수도유궤질함량화토양수분적영향，여토양유궤질함량현저정상관。가견，가이통과시비화관개래조공토양유궤질화양화철함량，이제승토양비력。
In order to explore the effects of different water table and fertilization treatments on organic matter and iron oxides in paddy soil, a long-term located experiment from 1982 was conducted. The results showed that both applying crop residue and chemical fertilizer can improve soil organic matter, and high crop residue application and high water table were more conducive to organic matter accumulation. Soil amorphous iron oxide was both affected by soil organic matter and soil moisture, and was positive correlated with soil organic matter. Therefore, to improve soil fertility can be realized by regulate and control soil organic matter and soil moisture through fertilization and irrigation.