CO2溶水滴灌对盐碱地玉米产量及经济效益的影响

周斌 ,  周伟伟 ,  韩品

绿洲农业科学与工程 ›› 2026, Vol. 11 ›› Issue (03) : 21 -28.

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绿洲农业科学与工程 ›› 2026, Vol. 11 ›› Issue (03) : 21 -28. DOI: 10.26941/j.cnki.2096-2177.2026.03.004
耕作栽培·作物遗传育种·种质资源

CO2溶水滴灌对盐碱地玉米产量及经济效益的影响

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The Impact of CO₂-Dissolved Water Drip Irrigation on Maize Yield and Economic Benefits in Saline-Alkaline Soils

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摘要

为探究CO2溶水滴灌对盐碱地玉米产量及经济效益的影响,本研究通过田间小区试验,以4个玉米品种(MC670、和田918、春光7501和国瑞188)为材料,设置CO2溶水量(555 kg·hm-2,EC)和常规井水滴灌(CK)2个处理。结果表明,4个玉米品种叶片净光合速率、胞间CO2浓度均显著高于对照组,气孔导度、蒸腾速率呈下降趋势且低于对照组;CO2溶水滴灌处理下,4个玉米品种产量分别增长15.11%、16.49%、14.98%和18.97%;且产量与株高、净光合速率、穗长等指标相关性较高,表明这些指标可在一定程度上反映产量,与其他指标虽有一定相关性,但关系不紧密。在经济效益方面,CO2溶水滴灌处理下4个玉米品种的净收益均高于对照,分别高出3 991.70元·hm-2、4 051.80元·hm-2、3 593.70元·hm-2和4 840.60元·hm-2。说明CO2溶水滴灌可在一定程度上提高盐碱地玉米的产量,并增加玉米经济效益。

Abstract

To investigate the effects of CO2-enriched water drip irrigation on maize yield and economic returns in saline-alkali soils,this study employed field plot experiments using four maize varieties(MC670,Hetian 918,Chunguang 7501,and Guorui 188)as experimental materials,with two treatments:CO2-dissolved water irrigation(555 kg·hm-2,EC)and conventional well-water drip irrigation(CK).The results demonstrated that,the net photosynthetic rate and intercellular CO2 concentration of all four maize varieties were significantly higher than those in the control group,while their stomatal conductance and transpiration rate showed a declining trend and were lower than those in the control group;under the CO2-dissolved water drip irrigation treatment,the yields of the four maize varieties increased by 15.11%,16.49%,14.98%,and 18.97%,respectively;furthermore,yield exhibited strong correlations with indicators such as plant height,net photosynthetic rate,and ear length,suggesting that these metrics can effectively reflect yield levels to some extent;although other indicators also showed certain correlations,these relationships were not particularly tight.Regarding economic benefits,the net profits of all four maize varieties under the CO2-dissolved water drip irrigation treatment were higher than those under the control treatment,exceeding them by 3 991.70 yuan·hm-2,4 051.80 yuan·hm-2,3 593.70 yuan·hm-2,and 4 840.60 yuan·hm-2,respectively.These findings indicate that CO2-dissolved water drip irrigation can enhance maize yield in saline-alkali soils and improve the economic returns associated with maize cultivation to a certain extent.

关键词

CO2溶水滴灌 / 盐碱地玉米 / 产量 / 生理生长 / 经济效益

Key words

CO2-dissolved water drip irrigation / maize in saline-alkali soil / yield / physiological growth / economic benefits

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周斌,周伟伟,韩品. CO2溶水滴灌对盐碱地玉米产量及经济效益的影响[J]. 绿洲农业科学与工程, 2026, 11(03): 21-28 DOI:10.26941/j.cnki.2096-2177.2026.03.004

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