CAJ | 학술논문

用五因素(1/2)二次正交旋转组合设计研究施氮量、基肥施氮比例、磷肥施用量、钾肥施用量及移栽密度对优良粳稻群体穗实粒数和单位面积内总实粒数的影响。结果表明：成熟期群体穗实粒数和单位面积内总实粒数之间对农艺措施的要求是一对矛盾；实现666．7 m2产量大于600 kg的主要农艺措施是：施氮量为：9．61~9．93 kg/666．7 m2；基肥施氮比例为：47．38%~50．72%；磷肥施用量：4．05~4．39 kg/666．7 m2；钾肥施用量：6．49~6．94 kg/666．7 m2；移栽密度：1．70~1．76万窝/666．7 m2。
용오인소(1/2)이차정교선전조합설계연구시담량、기비시담비례、린비시용량、갑비시용량급이재밀도대우량갱도군체수실립수화단위면적내총실립수적영향。결과표명：성숙기군체수실립수화단위면적내총실립수지간대농예조시적요구시일대모순；실현666．7 m2산량대우600 kg적주요농예조시시：시담량위：9．61~9．93 kg/666．7 m2；기비시담비례위：47．38%~50．72%；린비시용량：4．05~4．39 kg/666．7 m2；갑비시용량：6．49~6．94 kg/666．7 m2；이재밀도：1．70~1．76만와/666．7 m2。
Quadratic orthogonal rotating combination design of five factors ( 1/2 ) was used to investigate the effect of N, P and K application rate, basal fertilizer proportion and planting density on rice grain numbers per ear and total grain number per unit area in alpine region. The results indicated that the fertilizer applica-tion techniques for grain numbers per ear and total grain number per unit area were contradictory. The best yield (600 kg/666. 7 m2 ) was obtained from that N, P, K application rate were 9. 61~ 9. 93 kg /666. 7 m2 , 4. 05 ~ 4. 39 kg / 666. 7 m2 and 6. 49 ~ 6. 94 kg /666. 7 m2 respectively; basal N ratio 47. 38% ~50. 72% and transplanting density 1. 70 × 104 ~ 1. 76 × 104 holes /666. 7 m2 .