长期不施用氮肥会使玉米叶片内叶绿素的形成受到限制，不利于有机物质的合成；
Without N fertilizer for years, it will strain synthesis of chlorophyll in maize leaf, and it will go against the synthesise of organic matter. N fertilizer is in favor of the widening o…
长期不施用氮肥会使玉米叶片内叶绿素的形成受到限制，不利于有机物质的合成；
Without N fertilizer for years, it will strain synthesis of chlorophyll in maize leaf, and it will go against the synthesise of organic matter. N fertilizer is in favor of the widening o…
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