CAJ | 학술논문

以20个杂交中稻组合为材料，在前氮后移与重底早追两种施氮方式下，研究了前氮后移对头季稻及再生稻产量的影响。结果表明，前氮后移有助于提高杂交中稻组合头季稻及再生稻产量，且高于重底早追施氮方式，但各杂交组合间表现各异。其中，内5优306、蓉18优447、德香4103、内5优317和川谷优7329这5个组合前氮后移处理头季稻比重底早追处理显著或极显著增产，乐优198、宜香优800、蓉优1808、冈比优99、冈优725、德香4103、炳优900、F优498、内5优317这9个组合的再生稻产量前氮后移处理比重底早追处理高。综合考虑头季稻产量和再生力，两季总产较高的组合为宜香优800、内5优317和蓉18优447。
이20개잡교중도조합위재료，재전담후이여중저조추량충시담방식하，연구료전담후이대두계도급재생도산량적영향。결과표명，전담후이유조우제고잡교중도조합두계도급재생도산량，차고우중저조추시담방식，단각잡교조합간표현각이。기중，내5우306、용18우447、덕향4103、내5우317화천곡우7329저5개조합전담후이처리두계도비중저조추처리현저혹겁현저증산，악우198、의향우800、용우1808、강비우99、강우725、덕향4103、병우900、F우498、내5우317저9개조합적재생도산량전담후이처리비중저조추처리고。종합고필두계도산량화재생력，량계총산교고적조합위의향우800、내5우317화용18우447。
Effects of shift part of nitrogen fertilizer from basal-tillering to panicle initiation on grain yield of mid-season hybrid rice and ratoon rice were investigated with 20 rice combinations in two nitrogen application strategies. The results showed that the average grain yield of 20 hybrid rice combinations was higher than that of traditional fertilizing method. There were 5 combinations ’ grain yield of main crop rice and 9 combinations’ grain yield of ratoon rice higher than traditional fertilizing method. Considered to the total yield of main crop rice and ratoon rice, there were 3 combinations’ grain yield significant higher than traditional fertilizing method.