| 高寒山区氮磷钾施肥技术对粳稻实粒数的影响 |
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| 引用本文： | 叶永印,余本勋,聂奇,张时龙,何友勋,田孟祥,余莉.高寒山区氮磷钾施肥技术对粳稻实粒数的影响[J].贵州大学学报(农业与生物科学版),2014(4):10-14. |
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| 作者姓名： | 叶永印 余本勋 聂奇 张时龙 何友勋 田孟祥 余莉 |
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| 作者单位： | 贵州省毕节市农业科学技术研究所,贵州毕节551700 |
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| 基金项目： | 贵州省科技成果重点推广计划“粳稻新品种毕粳44示范推广”[黔科合成字（2013）5070] |
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| 摘 要： | 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:9.61~9.93kg/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:6.49~6.94kg/666.7 m2;移栽密度:1.70~1.76万窝/666.7 m2。
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| 关 键 词： | 粳稻 施肥技术 穗实粒 总实粒 |
Effect of N,P and K Fertilizer Application Techniques on Rice Grain Number in Alpine Region |
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| YE Yong-yin,YU Ben-xun,NIE Qi,ZGANG Shi-long,HE You-xun,TIAN Meng-xiang,YU Li.Effect of N,P and K Fertilizer Application Techniques on Rice Grain Number in Alpine Region[J].Journal of Mountain Agriculture & Biology,2014(4):10-14. |
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| Authors: | YE Yong-yin YU Ben-xun NIE Qi ZGANG Shi-long HE You-xun TIAN Meng-xiang YU Li |
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| Institution: | ( Bijie Institute of Agricultural Sciences, Bijie Guizhou 551700, China) |
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| Abstract: | 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 ＆#215; 104 ~ 1. 76 ＆#215; 104 holes /666. 7 m2 . |
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| Keywords: | Alpine region fertilization technique grain numbers per ear total grain number per unit area |
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