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Position: Home > Articles > Studies on Optimized Disposition of Planting Density and Nitrogen Rate for Normalized Cultivation of Summer-planting Peanut Journal of Peanut Science 2004,33 (3) 37-40

夏直播花生规范化栽培密度与氮肥优化配置研究

作  者:
李伟锋;张保亮;何延成;王海红;张梅
单  位:
河南省周口市农业科学研究所
关键词:
花生;夏直播;N肥;密度;产量;优化组合
摘  要:
采用二次饱和D-最优设计建立了密度和N肥用量与夏直播花生产量的数学模型。进一步分析表明,密度与N肥用量呈负交互效应,肥料用量增加,花生密度可适当减少。密度与N肥用量的最优组合为每公顷播15.36万穴,施纯N99.6kg,最高产量可达到5527.0kg。公顷产量在4500~5527kg范围内的措施组合为:每公顷播15.0~18.7万穴,施纯N65.1~124.4kg。
译  名:
Studies on Optimized Disposition of Planting Density and Nitrogen Rate for Normalized Cultivation of Summer-planting Peanut
作  者:
LI Wei-feng, ZHANG Bao-liang, HE Yan-cheng, WANG Hai-hong, ZHANG Mei(Zhoukou Institute of Agricultural Science, Zhoukou 466001, China)
关键词:
peanut; summer-planting; nitrogen fertilizer; plant density; yield; optimized disposition
摘  要:
A mathematical model between peanut yield, plant density and N rate was set up with the quadratic saturation D-optimization design. Conclusions can be made from the model: 1) There was a negative interaction between plant density and N rate. The optimum plant density can be decreased as the increase of N rate; 2) The maximum yield based on this experiment can reach to 5527.0 kg/ha and the corresponding combination of N rate and plant density were 99.6 kg/ha and 153600 holls/ha,respectively. The optimum disposition of N rate and plant density for yields of 4500~5527 kg/ha were 65.1~124.4 kg/ha and 150000~187100 holls/ha, respectively.

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