CAJ | 학술논문

[目的]研究减量施肥对水稻生长,稻田水体N、P含量的影响.[方法]在当地习惯施肥和施用绿肥红浮萍的基础上,设减量施肥处理,测定各组处理的水稻农艺性状,产量,N、P利用率,稻田水中总N、P在各个生长时期的变化情况.[结果]从产量方面看,红浮萍+当地习惯减10%处理的产量较高,为8 537.55 kg/hm~2,与当地习惯处理相当,但比当地习惯减10%处理、当地习惯减20%处理、红浮萍+当地习惯减20%处理分别增产16.1%、25.2%、16.3%;红浮萍+当地习惯减10%处理的N、P利用率较高,分别为40.8%、40.7%,而当地习惯减20%处理最低,分别仅为23.5%、20.8%;红浮萍+当地习惯减10%处理与当地习惯处理比较,稻田水N含量相当,而P含量较低.[结论]综合评价,红浮萍+当地习惯施肥量减10%处理可减少N、P的流失,且不影响水稻的产量.
[목적]연구감량시비대수도생장,도전수체N、P함량적영향.[방법]재당지습관시비화시용록비홍부평적기출상,설감량시비처리,측정각조처리적수도농예성상,산량,N、P이용솔,도전수중총N、P재각개생장시기적변화정황.[결과]종산량방면간,홍부평+당지습관감10%처리적산량교고,위8 537.55 kg/hm~2,여당지습관처리상당,단비당지습관감10%처리、당지습관감20%처리、홍부평+당지습관감20%처리분별증산16.1%、25.2%、16.3%;홍부평+당지습관감10%처리적N、P이용솔교고,분별위40.8%、40.7%,이당지습관감20%처리최저,분별부위23.5%、20.8%;홍부평+당지습관감10%처리여당지습관처리비교,도전수N함량상당,이P함량교저.[결론]종합평개,홍부평+당지습관시비량감10%처리가감소N、P적류실,차불영향수도적산량.
[Objective]The research aimed to study the effects of reducing the amount of using fertilizer on growth and phosphorus content in paddy water. [Method]On the basis of local customs fertilizer and using the green fertilizer red duckweed, the treatments of reducing the amount of using fertilizer were designed to apply in rice, the agronomic characters, yield and utilization ratio of Nitrogen and Phosphorus, the changes of total Nitrogen and Phosphorus in paddy water were determined. [Result]The yield of treatment of red duckweed + less 10% of local customs were 8 537.55 kg/hm~2, which was equivalent to that of treatment of local customs fertilizer, and compared with the less 10% of local customs fertilizer, less 20% of local customs fertilizer, and red duckweed + less 20% of local customs fertilizer, the yield of red duckweed + less 10% of local customs were increased 16.1%, 25.2%, 16.3%;utilization ratio of Nitrogen and Phosphorus of red duckweed + less 10% of local customs were higher, they were 40.8% and 40.7% respectively, while that of less 20% of local customs fertilizer were 23.5%, 20.8%;nitrogen in paddy fields water of red duckweed +less 10% local customs fertilizer was equivalent to local customs fertilizer treatment, but phosphorus was lower than it. [Conclusion]The treatment of red duckweed + less 10% of local customs fertilizer treatment can reduce the loss of nitrogen and phosphorus, but also have no affects on rice yield.