文章摘要
常 浩, 洪 明, 陈志卿, 兰 茜, 高 瑞.土壤水分上下限对北疆滴灌春玉米产量和品质的影响Journal of Water Resources and Water Engineering[J].,2023,34(1):207-215
土壤水分上下限对北疆滴灌春玉米产量和品质的影响
Effect of upper and lower soil moisture limits on yield and quality of drip irrigated spring maize in the northern Xinjiang
  
DOI:10.11705/j.issn.1672-643X.2023.01.25
中文关键词: 土壤水分上、下限  滴灌  春玉米  产量  品质  熵权法  北疆
英文关键词: upper and lower limits of soil moisture  drip irrigation  spring maize  yield  quality  entropy weight method  the northern Xinjiang
基金项目:新疆维吾尔自治区重点研发项目(2020A01003-2、2022B02011-1); 新疆水利科技专项资金项目(XSKJ-2022); 新疆维吾尔自治区教育厅创新项目(XJEDU2017T004)
Author NameAffiliation
CHANG Hao1,2, HONG Ming1,2, CHEN Zhiqing3, LAN Xi1,2, GAO Rui1,2 (1.新疆农业大学 水利与土木工程学院 新疆 乌鲁木齐 830052 2.新疆水利工程安全与水灾害防治重点实验室新疆 乌鲁木齐 830052 3.新疆水利水电科学研究院 新疆 乌鲁木齐 830049) 
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中文摘要:
      为确定滴灌春玉米(Zea mays L.)各生育期适宜的土壤水分上、下限,从而为新疆玉米灌溉管理升级提供理论依据,以“太玉339”为试材,采用正交试验设计方法,在玉米拔节期、扬花-灌浆期、灌浆-完熟期分别设置3种水分上、下限(50%~80%FC、60%~90%FC、70%~100%FC,FC为田间持水量),共设9个处理(T1~T9),分析其对春玉米不同生育阶段的生长指标、产量、品质、水分利用效率(WUE)的影响。结果表明:当玉米各生育期土壤水分保持在50%~80%FC时,其株高、地上干物质量、叶面积指数(LAI)和产量均显著减小,但会提高水分利用效率(WUE)。总体而言,T3处理的产量最高,为17 114.51 kg/hm2;T4处理的WUE最高,为3.11 kg/m3;在灌浆-完熟期提高水分上、下限有利于增加玉米粗蛋白、粗脂肪及淀粉的含量,其中T3处理该3个指标均为最高,分别为11.02、4.11、69.96 g/100g。以产量、干物质积累量、品质、WUE为指标,基于熵权法的综合评价表明T3处理最优。综上所述,新疆北疆地区滴灌春玉米在拔节期、扬花-灌浆期、灌浆-完熟期适宜的土壤水分分别为50%~70%FC、70%~100%FC、70%~100%FC
英文摘要:
      It is necessary to determine the appropriate upper and lower soil moisture limits for drip irrigated spring maize (Zea mays L.) at each growth stage to provide a theoretical basis for the upgrading of maize irrigation management in Xinjiang. Cultivar “Taiyu 339” was chosen as the test material, and three upper and lower limits of soil moisture (50%~80%FC, 60%~90%FC, 70%~100%FC, FC is the field capacity) were set at the jointing stage, flowering-filling stage and filling-maturity stage of maize respectively and nine treatments were established to analyze the effect of different moisture contents on the growth indicators, yield, quality and water use efficiency (WUE) of spring maize using the orthogonal experimental design method. The results showed that the plant height, aboveground dry matter mass, leaf area index (LAI) and yield decreased significantly when the soil moisture content was maintained at 50%~80%FC in each growth period, but water use efficiency increased. In general, the yield of T3 treatment was the highest, which was 17,114.51 kg/hm2; T4 treatment had the highest WUE, 3.11 kg/m3. Furthermore, Increasing the upper and lower limits of soil moisture content during the filling-maturity period was beneficial to increasing the content of crude protein, crude fat and starch in maize, among which, the indexes of T3 treatment scored the highest, which were 11.02, 4.11 and 69.96 g/100g, respectively. Taking yield, dry matter accumulation, quality and WUE as indicators, the comprehensive evaluation based on entropy weight method showed that T3 was the optimal treatment. In summary, the recommended appropriate soil moisture for drip irrigated spring maize in the northern Xijiang at the jointing stage, flowering-filling stage, and filling-maturity stage is 50%~70%FC, 70%~100%FC, and 70%~100%FC, respectively.
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