赵婷婷, 冯光明, 刘树欣. 施磷肥对红小豆吸磷及产量的影响[J]. 中国生态农业学报(中英文), 2001, 9(1): 70-71.
引用本文: 赵婷婷, 冯光明, 刘树欣. 施磷肥对红小豆吸磷及产量的影响[J]. 中国生态农业学报(中英文), 2001, 9(1): 70-71.
ZHAO Ting-Ting, FENG Guang-Ming, LIU Shu-Xin. Effects of phosphate application on phosphorus content and yield of Adsuki bean[J]. Chinese Journal of Eco-Agriculture, 2001, 9(1): 70-71.
Citation: ZHAO Ting-Ting, FENG Guang-Ming, LIU Shu-Xin. Effects of phosphate application on phosphorus content and yield of Adsuki bean[J]. Chinese Journal of Eco-Agriculture, 2001, 9(1): 70-71.

施磷肥对红小豆吸磷及产量的影响

Effects of phosphate application on phosphorus content and yield of Adsuki bean

  • 摘要: 试验研究了潮土区不同施P肥量对红小豆含P量及产量的影响。结果表明,在土壤有效磷含量为9mg/kg条件下P肥对红小豆增产效果达极显著水平,施纯P 68.8kg/hm2时产量最高。红小豆全生育期含P量呈单峰曲线,花后10 d左右达最大。结荚鼓粒期及成熟期含P量与产量呈显著正相关关系,相关系数分别为0.9375和0.7863。各生育阶段的适宜含P量始花前为4.0mg/g,始花期至花后20 d为4.4~4.8mg/g,花后20 d后为3.9~3.5mg/g。产量(Y)与吸P量(x)间的关系为二次曲线,其决定系数为0.9823,施P量与吸P量间呈极显著正相关关系,相关系数为0.9644。

     

    Abstract: The experiment was conducted to study the effect of phosphate application on phosphorus absorption and yield of Adsuki bean in fluvo-aquic soil area. The results showed that effect of phosphate on yield was very significant and the maximum yield was obtained when the amount of phosphate application was 68.8kg/hm2. Correlation between phosphorus content and yield reached a very significant level, its correlation coefficients were0.9375 and 0.7863 respectively during pod-setting and pod-filling stage and ripening stage. During the whole growing period, there was one phosphorus content peak in which about 10 days after flowering reached the maximum. The appropriate phosphorus contents before flower-beginning,flower-beginning to 20 days after blooming, 20 days after blooming later were 4.0mg/g, 4.4~4.8mg/g, 3.9~3.5mg/g respectively.Relation between the yield and the amount of phosphorus absorption was quadratic equation with 0.9823 determination coefficient.Correlation between the amount of phosphate application and amount of phosphorus absorbed reached a significant level and its correlation coefficient was 0.9644.

     

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