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草业科学  2014 

施氮、磷肥对老芒麦种子产量、产量组分及成熟期冠层NDVI值的影响

, PP. 683-688

Keywords: 老芒麦,氮肥,磷肥,冠层NDVI,产量组分,产量

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Abstract:

?试验采用裂区设计,研究氮、磷处理对种植4年老芒麦(Elymussibiricus)种子产量、产量组分和成熟期冠层归一化差值植被指数(NormalizedDifferenceVegetationIndex,NDVI)的影响。结果表明,施磷120kg·hm-2时,种子产量最大(385.18kg·hm-2),施氮和氮磷互作均对其影响不显著(P>0.05)。不同氮、磷处理对老芒麦成熟期冠层NDVI值影响不显著;用所测NDVI值和对应产量做相关分析表明,NDVI与实际产量呈极显著(P<0.01)正相关。

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