CAJ | 학술논문

通过4种不同水平施氮量（0、112．5、225．0、337．5kg／hm^2）对10个不同水稻品种（系）进行产量及构成因素研究，结果表明：在磷、钾标准施用和土壤条件背景一致，10个品种（系）在4种施氮标准下，品种（系）产量整体表现出从0-112．5kg／hm^2逐渐升高，然后112．5～337．5kg/hm^2产量降低的过程。结实率表现为随着施氮量的增加而降低，有效穗则随着施氮量的增加而增加，千粒重无明显变化。同时，不同的品种对氮肥的敏感度不同。
통과4충불동수평시담량（0、112．5、225．0、337．5kg／hm^2）대10개불동수도품충（계）진행산량급구성인소연구，결과표명：재린、갑표준시용화토양조건배경일치，10개품충（계）재4충시담표준하，품충（계）산량정체표현출종0-112．5kg／hm^2축점승고，연후112．5～337．5kg/hm^2산량강저적과정。결실솔표현위수착시담량적증가이강저，유효수칙수착시담량적증가이증가，천립중무명현변화。동시，불동적품충대담비적민감도불동。
The yield and component factors of 10 rice varieties were studied under 4 nitrogen fertilization level (0,112.5,225.0,337.5 kg/hm^2).The results showed that under the same phosphorus ,potassium fertilizer and soil conditions ,the yields of 10 rice varieties under 4 nitrogen fertilization levels increased gradually as nitrogen fertilization level increased from 0 kg/hm^2 to 112.5 kg/hm^2, and then reduced as which increased from 112.5 kg/hm^2 to 337.5 kg/hm^2. The setting rate reduced along with the increase of nitrogen fertilization ,the effective spikes increased of along with the increase of nitrogen fertilization ,and the 1000-grain weight showed no significantly change. At the same time ,the sensitivity to nitrogen fertilization varied from different rice varieties.