Journal of Agricultural Science and Technology ›› 2024, Vol. 26 ›› Issue (8): 189-200.DOI: 10.13304/j.nykjdb.2022.0963

• BIO-MANUFACTURING & RESOURCE AND ECOLOGY • Previous Articles    

Effects of Water and Air Interaction on Physiological Growth and Yield of Maize Under Mulched Drip Irrigation

Mei WU(), Jinzhu ZHANG(), Zhenhua WANG, Jian LIU, Yue WEN, Xuanzhi LI   

  1. Key Laboratory of Modern Water-saving Irrigation of Xinjiang Production & Construction Group,Key Laboratory of Northwest Oasis Water-saving Agriculture of Ministry of Agriculture and Rural Affairs,College of Water Conservancy & Architectural Engineering,Shihezi University,Xinjiang Shihezi 832000,China
  • Received:2022-11-07 Accepted:2022-12-26 Online:2024-08-15 Published:2024-08-12
  • Contact: Jinzhu ZHANG

水气互作对膜下滴灌玉米生理生长及产量的影响

吴梅(), 张金珠(), 王振华, 刘健, 温越, 李宣志   

  1. 石河子大学水利建筑工程学院,现代节水灌溉兵团重点实验室,农业农村部西北绿洲节水农业重点实验室,新疆 石河子 832000
  • 通讯作者: 张金珠
  • 作者简介:吴梅 E-mail: 3106392644@qq.com
  • 基金资助:
    兵团重点领域创新团队项目(2019CB004);兵团节水灌溉试验计划项目(BTJSSY-202108)

Abstract:

In order to investigate the effects of water and air interaction on physiological growth and yield of maize under mulched drip irrigation and to explore the suitable water and air combination mode of maize under mulched drip irrigation, a field experiment was conducted with ‘Xinyu 66’ as material. 4 irrigation levels including 3 375(W1), 4 500(W2), 5 625(W3), 6 750 m3?hm-2(W4) and 2 irrigation methods including aerated drip irrigation(A) and non-aerated drip irrigation(C) were set up, and the changes of physiological growth and yield of drip irrigation maize under different water and air interaction treatments were analyzed. The results showed that with the increase of irrigation amount, the net photosynthetic rate, stomatal conductance, transpiration rate, aboveground dry matter mass and yield of maize increased first and then decreased, the intercellular CO2 concentration and irrigation water use efficiency decreased, and the yield was the highest under W3 level. The aerated drip irrigation increased the plant height, stem diameter and leaf area index of maize compared with the non-aerated drip irrigation. Under aerated drip irrigation, the net photosynthetic rate was significantly increased by 5.39%~10.09% (P<0.05), stomatal conductance was significantly increased by 10.64%~18.40% (P<0.05), transpiration rate was significantly increased by 7.07%~15.27% (P<0.05), dry matter weight was significantly increased by 5.53% ~7.76% (P<0.05), with the highest growth rate under W3 irrigation. Aerated drip irrigation increased maize yield and irrigation water use efficiency by 3.58%~6.64% and 3.36%~6.63% on average, and the effect was more significant under W3 irrigation level (P<0.05). The maximum yield of AW3 treatment was 14 629 kg?hm-2. Above results showed that AW3 treatment could promote the growth of maize and increase the yield when the irrigation amount was 5 625 m3?hm-2 under aerated drip irrigation. Above results provided theoretical basis and technical guidance for maize production in arid oasis of Xinjiang.

Key words: aerated irrigation, mulched drip irrigation, maize, physiological growth, yield

摘要:

为研究水气互作对膜下滴灌玉米生理生长及产量的影响,探寻膜下滴灌玉米适宜的水气组合模式,以‘新玉66’为试验材料,设置3 375(W1)、4 500(W2)、5 625(W3)、6 750 m3?hm-2(W4)4个灌溉水平和加气滴灌(A)与不加气滴灌(C)2种灌水方式,分析不同水、气处理下滴灌玉米生理生长和产量的变化。结果表明,随着灌水量增加,玉米的净光合速率、气孔导度、蒸腾速率、地上部干物质量及产量先增大后降低,胞间CO2浓度和灌溉水分利用效率降低,W3水平下产量最大。加气滴灌较不加气处理提高了玉米的株高、茎粗、叶面积指数;加气滴灌下玉米净光合速率显著增加5.39%~10.09%(P<0.05),气孔导度显著提高10.64%~18.40%(P<0.05),蒸腾速率显著增加7.07%~15.27%(P<0.05),干物质量显著增加5.53%~7.76%(P<0.05),在W3灌溉水平下增长率最大。加气滴灌使玉米产量和灌溉水分利用效率平均提高3.58%~6.64%和3.36%~6.63%,在W3灌溉水平下的影响更显著(P<0.05),AW3处理玉米产量达到最大,为14 629 kg?hm-2。以上结果表明,AW3处理即加气滴灌下、灌水量为5 625 m3?hm-2时,可促进膜下滴灌玉米生长,提高产量。以上研究结果可为新疆干旱绿洲区玉米生产提供理论基础及技术指导。

关键词: 加气灌溉, 膜下滴灌, 玉米, 生理生长, 产量

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