| 香蕉氮·磷·钾施肥效应模型探析 |
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| 引用本文： | 匡石滋,田世尧,李春雨,易干军,洪炎龙,万国富.香蕉氮·磷·钾施肥效应模型探析[J].农业科学与技术,2010(9):130-135. |
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| 作者姓名： | 匡石滋 田世尧 李春雨 易干军 洪炎龙 万国富 |
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| 作者单位： | [1]广东省农业科学院果树研究所,广东广州510640 [2]广东省中山市农业局,广东中山528400 |
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| 基金项目： | 国家科技支撑计划项目（2007BAD89814）;广东省科技计划项目（20098020201011）. |
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| 摘 要： | 目的]研究香蕉N、P、K肥施用量,为建立香蕉平衡施肥指标体系提供参考依据。方法]通过对香蕉进行N、P、K肥料＂3414＂试验,并对结果进行肥料效应回归分析,拟合建立产量三元二次、一元二次和二元二次肥料效应回归模型。结果]适量的N、P、K肥料对香蕉的增产效应明显,过量施肥造成肥料利用率下降,在生产中N、P、K肥宜选择适宜的用量。建议采用一元二次肥料效应模型计算推荐施肥量,试验土壤的香蕉最佳产量为44.193～45.904t/hm2时,对应的N、P2O5、K2O最佳经济施用量分别为795.1、262.3、1236.9kg/hm2,其N、P、K施肥比例为1∶0.33∶1.55。结论]试验结果可供与试验地（黏壤土）相类似的土壤类型区参考应用。
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| 关 键 词： | 香蕉 N、P、K肥 施肥模型 最佳施肥量 |
Effect Models of Nitrogen, Phosphorus and Potassium Fertilizer Formulation in Banana |
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| KUANG Shi-zi,TIAN Shi-yao,LI Chun-yu,YI Gan-jun,HONG Yan-long,WAN Guo-fu.Effect Models of Nitrogen, Phosphorus and Potassium Fertilizer Formulation in Banana[J].Agricultural Science ＆ Technology,2010(9):130-135. |
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| Authors: | KUANG Shi-zi TIAN Shi-yao LI Chun-yu YI Gan-jun HONG Yan-long WAN Guo-fu |
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| Institution: | 1.Fruit Tree Research Institute Guangdong Academy of Agricultural Sciences,Guangzhou 510640;2.Zhongshan City,Guangdong Province Agriculture Bureau,Zhongshan 528400 |
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| Abstract: | Objective] The aim was to modify the application amount of N,P and K fertilizer so as to provide a reference for establishing balanced fertilization index system of banana.Method]The N,P and K fertilizer ＂3414＂ test was carried out on banana,and then regression analysis was performed on the fertilizer effect.Ternary quadratic,binary quadric and one-variable quadratic regression equations for the fertilizer effect on the banana yield were constructed.Result]Suitable amount of N,P and K fertilizer had significant yield improving effect,whereas overdose of fertilizer application led to decreasing of utilization rate of fertilizer.Therefore,suitable amount of N,P and K fertilizer should be selected in production.It could be concluded that one-variable quadratic regression equations was the best model to calculate the suitable fertilizer amount.The best yield range of banana in the tested field was 44.193-45.904 t/hm2,while the corresponding optimum application amount of N,P2O5 and K2O was 795.1,262.3 and 1 236.9 kg/hm2 respectively,and the ratio among nitrogen,phosphorus and potassium are 1∶0.33∶1.55.Conclusion]The result in this study could provide references for the soil types similar to the tested field. |
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| Keywords: | Banana Nitrogen Phosphorus and potassium fertilization Fertilizer application model Optimum application amount |
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