中国农业科学 ›› 2026, Vol. 59 ›› Issue (3): 602-618.doi: 10.3864/j.issn.0578-1752.2026.03.010

• 土壤肥料·节水灌溉·农业生态环境 • 上一篇    下一篇

加气滴灌下氮肥有机替代对亏缺灌溉棉花产量和水分利用效率的影响

延廷霖1,2(), 杜娅丹1,2(), 胡笑涛1,2, 王贺1,2, 李晓雁1,2, 王玉明1,2, 牛文全1,3, 谷晓博1,2   

  1. 1 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100
    2 西北农林科技大学水利与建筑工程学院,陕西杨凌 712100
    3 中国科学院水利部水土保持研究所,陕西杨凌 712100
  • 收稿日期:2025-03-26 接受日期:2025-05-12 出版日期:2026-02-01 发布日期:2026-01-31
  • 通信作者:
    杜娅丹,E-mail:
  • 联系方式: 延廷霖,E-mail:2022050968@nwafu.edu.cn。
  • 基金资助:
    国家重点研发计划(2022YFD1900400); 国家自然科学基金(52109066); 中国博士后科学基金(2022M712604); 中国博士后科学基金(2023T160534); 陕西省博士后基金(2023BSHTBZZ29)

The Impacts of Nitrogen Fertilizer Organic Alternatives Under Aerated Drip Irrigation on Cotton Yield and Water Use Efficiency Under Deficit Irrigation Conditions

YAN TingLin1,2(), DU YaDan1,2(), HU XiaoTao1,2, WANG He1,2, LI XiaoYan1,2, WANG YuMing1,2, NIU WenQuan1,3, GU XiaoBo1,2   

  1. 1 Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling 712100, Shaanxi
    2 College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, Shaanxi
    3 Institute of Soil and Water Conservation, CAS&MWR, Yangling 712100, Shaanxi
  • Received:2025-03-26 Accepted:2025-05-12 Published:2026-02-01 Online:2026-01-31

摘要:

【目的】针对新疆水资源短缺和土壤肥力较低等问题,探究加气滴灌下不同灌水量和有机无机肥不同配比对土壤质量,棉花的生长、产量和水分利用效率的影响,为确定新疆棉花节水高效可持续生产的灌溉施肥模式提供理论依据。【方法】于2023和2024年在新疆生产建设兵团146团地区开展大田试验,在加气滴灌下设置2个灌水量(W1:80%ETC和W2:100%ETC,ETC为作物蒸发蒸腾量)和5个有机无机肥配施比例(OF1:100%化肥,OF2:75%化肥+25%有机肥,OF3:50%化肥+50%有机肥,OF4:25%化肥+75%有机肥,OF5:100%有机肥),研究其对土壤质量指数(SQI)和棉花叶面积指数(LAI)、干物质累积量、产量、水分利用效率(WUE)的影响。【结果】土壤质量指数(SQI)随有机肥占比的提高而增大。与单施化肥相比,有机无机肥配施处理SQI两年平均提高了9.9%—28.8%。亏缺灌溉下土壤含水量和棉花LAI、干物质累积量、产量显著下降,而WUE显著提高。在两种灌溉水平(W1和W2)下,土壤含水量和棉花LAI、干物质累积量均随有机肥占比的增加呈先升后降趋势,W1灌溉水平下W1OF3处理以上指标取得最大值,而W2灌溉水平下W2OF2处理达最大值。与单施化肥OF1相比,有机无机肥配施处理两年土壤含水量、棉花的LAI和干物质累积量分别提高了0.4%—5.2%、4.1%—19.8%和3.7%—18.8%。两年籽棉产量均以W2OF2处理最大,两年平均产量为6 739.99 kg·hm-2,但WUE以W1OF3处理最高,两年平均为1.42 kg·m-3。分别利用隶属函数法、TOPSIS法和灰色关联度分析法对不同处理的SQI、籽棉产量和WUE进行评价,并结合整体差异组合评价模型对棉田SQI、籽棉产量和WUE进行综合评价,确定最优处理为W1OF3。【结论】考虑节水优先,保证产量的同时提高WUE和土壤质量为目标,推荐在加气滴灌下采用80%ETC和50%有机肥+50%化肥作为新疆棉田节水高效生产措施。

关键词: 加气滴灌, 有机无机肥配施, 土壤质量, 棉花, 产量, 水分利用效率

Abstract:

【Objective】In light of the shortage of water resources and the lower fertility and poor quality of soils in Xinjiang, this study explored the effects of varying irrigation volumes and ratios of organic to inorganic fertilizer application under aerated drip irrigation on the soil quality, cotton growth, yield, and water use efficiency of cotton fields. The objective was to provide a theoretical basis for determining an irrigation and fertilization model for cotton in Xinjiang that was water-saving, highly efficient, and sustainable. 【Method】Field experiments were conducted in the 146th Regiment area of the Xinjiang Production and Construction Corps in 2023 and 2024. Under aerated drip irrigation, two irrigation volumes (W1: 80%ETC and W2: 100%ETC, where ETC represents the crop evapotranspiration) and five ratios of organic to inorganic fertilizer application (OF1: 100% chemical fertilizer, OF2: 75% chemical fertilizer + 25% organic fertilizer, OF3: 50% chemical fertilizer + 50% organic fertilizer, OF4: 25% chemical fertilizer + 75% organic fertilizer, OF5: 100% organic fertilizer) were set up to study their impacts on the physical and chemical properties of soil quality, cotton growth including leaf area index (LAI), dry matter accumulation, yield, and water use efficiency (WUE). 【Result】The Soil Quality Index (SQI) increased with the rising proportion of organic fertilizer, showing an average increase of 9.9%-28.8% in the combined application of organic and inorganic fertilizers over the two years compared with the application of chemical fertilizer alone. Under deficit irrigation, soil moisture content, LAI, dry matter accumulation, and yield significantly decreased, while Water Use Efficiency (WUE) significantly increased. Under the two irrigation levels (W1 and W2), soil moisture content, cotton LAI, and dry matter accumulation first increased and then decreased as the proportion of organic fertilizer increased. Under W1, these indicators reached their maxima with the W1OF3 treatment, whereas under W2, their maxima were observed with the W2OF2 treatment. Compared with chemical fertilizer alone (OF1), the combined application of organic and inorganic fertilizers increased soil moisture content, LAI, and dry matter accumulation by 0.4%-5.2%, 4.1%-19.8%, and 3.7%-18.8% over two years, respectively. Over two years, the maximum seed cotton yield was observed under W2OF2 treatment, with an average yield of 6 739.99 kg·hm-2, but the highest WUE was achieved under the W1OF3 treatment, with an average value of 1.42 kg·m-3. The SQI, seed cotton yield, and WUE under different treatments were evaluated using the membership function method, TOPSIS method, and grey relational analysis, respectively. A comprehensive evaluation was carried out using an integrated differential combination evaluation model, determining the optimum treatment as W1OF3. 【Conclusion】Considering the priority of water-saving, while ensuring yield, and aiming to improve Water Use Efficiency (WUE) and soil quality, it was recommended that under aerated drip irrigation, applying 80% ETC for irrigation water volume and a combined application of 50% organic fertilizer and 50% chemical fertilizer, for serving as the optimal management measure for water-saving and efficient production in cotton fields in Xinjiang.

Key words: aerated drip irrigation, organic-inorganic fertilization, soil quality, cotton, yield, WUE