关键词: 水稻, 叶面肥, 光碳核肥, 产量, 品质

Abstract: In order to improve the yield and quality of rice,taking Jihong 9 as the test material,spraying carbon dioxide trapping agent for one,two,three and four times respectively at initial tillering stage,peak tillering stage,jointing stage,booting stage and filling stage of rice,the amount of chemical fertilizer of treatment with spraying carbon dioxide trapping agent was reduced by 20%,the effects of foliar application of carbon dioxide trapping agent on the yield and quality of rice were studied.The results showed that the application of carbon dioxide trapping agent could increase rice SPAD value,leaf area index,dry matter weight,1 000-grain weight,seed setting rate and yield,the treatment with foliar application of carbon dioxide trapping agent for four times had the highest yield of 9 338.85 kg/ha,which increased by 14.53% compared with CK without carbon dioxide trapping agent.The foliar application of carbon dioxide trapping agent increased brown rice rate,amylose content and taste value,decreased chalky grain rate,chalkiness and protein content.The treatment with foliar application of carbon dioxide trapping agent for four times had the highest brown rice rate,milled rice rate,head milled rice rate,amylose content and taste value,and the lowest chalky grain rate,chalkiness and protein content.Correlation analysis showed that foliar ap plication times of spraying carbon dioxide trapping agent was extremely significantly correlated with SPAD value,leaf area index,dry matter weight,1 000-grain weight,seed setting rate,yield,brown rice rate,amylose content and taste value,and significantly negatively correlated with chalky grain rate,chalkiness and protein content.To sum up,it was the best to spray carbon dioxide trapping agent for four times for rice,which both increased the yield and quality.

Key words: Rice, Foliar application, Carbon dioxide trapping agent, Yield, Quality