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大豆科学  2009 

氮肥对黑豆产量及氮磷钾积累分配的影响

DOI: 10.11861/j.issn.1000-9841.2009.01.0085, PP. 85-89

Keywords: 黑豆,氮肥,干物质积累,产量,,,

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Abstract:

以辽黑1号为材料,研究了不施底肥,而在开花期追施氮肥下,4种施氮水平对辽黑1号的产量以及氮、磷、钾积累分配规律的影响。结果表明:施氮不仅能增加干物质积累和产量,还有助于氮、磷、钾向籽粒中分配。在N1氮肥处理下的产量最高;N2氮肥处理时,黑豆植株积累的氮素最多。各施肥处理与对照相比,均有助于氮素向籽粒中分配,但以N1氮肥处理时向籽粒分配的最多。施氮处理对磷素吸收分配规律的影响与氮素相同。氮肥的施用有助于钾素向籽粒中分配,但各处理间差异不明显。建议生产上施纯氮45kghm-2对产量有明显增加的作用。

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