The results of nitrogen fertilizer residual effect under conventional and hole-source pattern showed that there had no significance difference on statistical analysis .
孔源及常规施肥方式下氮肥后效田间试验表明，二者之间无统计上显著差异。
The results of nitrogen fertilizer residual effect under conventional and hole-source pattern showed that there had no significance difference on statistical analysis .
孔源及常规施肥方式下氮肥后效田间试验表明，二者之间无统计上显著差异。
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