Cite this article: | 孙嘉星,王丽娟,韩卫华,等.水肥一体化下不同灌溉水平对酿酒葡萄茎秆液流特征和产量、品质的影响[J].灌溉排水学报,0,():-. |
| sunjiaxing,wanglijuan,hanweihua,et al.水肥一体化下不同灌溉水平对酿酒葡萄茎秆液流特征和产量、品质的影响[J].灌溉排水学报,0,():-. |
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DOI: |
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Effects of Different Water Levels on Stem Flow Characteristics, Yield and Quality of Drip Fertigated Wine Grape |
sunjiaxing, wanglijuan, hanweihua, gongdaozhi, gaolili, lihaoru, maolili, haoweiping
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Institute of Agricultural Environment and Sustainable Development
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Abstract: |
With 10 years cabernet sauvignon as the research object, we carried out the field experiments of integration of water and fertilizer in 2019 in Zhangjiakou, Hebei Province. We explored the effects of different water levels on stem flow characteristics, yield, quality and water use efficiency of wine grape under integration of water and fertilizer, and we obtained the optimal irrigation level when the yield and quality of wine grape was the best, providing a theory basis for formulating appropriate wine grape irrigation system. Under the same fertilization level, three levels of high water HW, medium water MW and low water LW were set, and each level was repeated for three times. Stem flow rate was continuously monitored by thermal dissipation probe (TDP) from May to October during the growth period of wine grapes. We analyzed stem flow characteristics of wine grapes and its relationship with environmental factors, and the final yield and quality was measured. The results showed that stem flow rate of wine grapes have an obvious diurnal trend of circadian rhythm during different growth periods, and the seasonal variation showed a trend of increasing first and then decreasing. The stem flow rate of wine grapes under different irrigation levels was as follows: high water HW > medium water MW > low water LW; Flow rate was positively correlated with the solar radiation and air temperature, and was negatively correlated with air relative humidity. By analyzing multiple regression of flow rate and air temperature, solar radiation, air relative humidity, wind speed, it showed that the four meteorological factors regression coefficients reached significant levels and the highest overall correlation was medium water treatment MW. The maximum yield of wine grapes was 10736.68 kg/hm2 under MW treatment and the minimum yield was 9900.93kg/hm2 under LW treatment. The effects on WUE of wine grapes under different water treatments were significant. (P<0.05), and the irrigation water use efficiency was decreased with the increase of irrigation amount. Under treatment MW, the content of fruit soluble solids reached 23.05%, the content of tannin and total phenols, reached 3.51mg/g and 59.01mg/g respectively.And it had a significant difference with other treatments (P<0.05). Through comprehensive analysis, medium water treatment MW can make yield and quality best under maintaining normal growth of wine grapes. |
Key words: Fertigation; Wine grapes; Flow rate; Yield; Quality |
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