水稻高产、高效、高氨基酸含量及营养价的施氮量优化

Optimization of N Application for High Yield, High Benefit, High Amino Acid Content and Nutrient Value in Rice

施氮量与稻米的氨基酸含量和产量呈显著和极显著正相关,与氨基酸的整齐性指数无相关性。应用两两比较分层递进矩阵法对5种施氮量的产量、经济效益、氨基酸含量和营养价进行综合评价,亩施12.5kg氮素方案最优。讨论了为提高稻米蛋氨酸含量和氨基酸营养价拟采用硫肥和氮肥合理配施措施。

Experimental result has shown significant correlation between the amount of nitrogen application and amino acid, yield with 0.05 and 0.01 positive correlative coefficency, but had hegative correlation with amino acid even index,