为了提升水稻产量和品质，以吉宏9为试验材料，在水稻分蘖始期、分蘖盛期、拔节孕穗期、灌浆期，分别喷施1、2、3、4次光碳核肥，喷施光碳核肥各处理化肥施用量均减少20%，研究叶面喷施光碳核肥对水稻产量及品质的影响。结果表明，喷施光碳核肥增加了水稻SPAD值、叶面积指数、干物质质量、千粒质量、结实率、产量，以喷施4次光碳核肥处理效果最好，产量达9 338.85 kg/hm²，较对照增产14.53%。施用光碳核肥能提高水稻稻米糙米率、直链淀粉含量、食味值，降低垩白粒率、垩白度和蛋白质含量，以喷施4次光碳核肥处理的糙米率、精米率、整精米率、直链淀粉含量和食味值最高，垩白粒率、垩白度和蛋白质含量均最低。相关性分析表明，光碳核肥喷施次数与水稻SPAD值、叶面积指数、干物质质量、千粒质量、结实率、产量、糙米率、直链淀粉含量、食味值均呈极显著正相关，与垩白粒率、垩白度、蛋白质含量均呈显著负相关。综上，水稻喷施4次光碳核肥最好，既能提高产量，又能提升品质。

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.