干物质积累 物质生产
Dry matter accumulation material production
以上为机器翻译结果，长、整句建议使用 人工翻译 。
氮素积累量与收获指数和氮收获指数呈极显著正相关关系，而与氮素干物质生产效率呈极显著负相关，与氮素籽粒生产效率相关不显著。
It was also showed that the nitrogen content in rice grain had very significantly negative correlation with NHI, NDMPE, and NGPE, while had no significant correlation with hi.
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