| Effects of drip irrigation water amount and equal nitrogen applicating organic\|inorganic fertilizer ratios on grape yield and quality |
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| DOI：10.7606/j.issn.1000-7601.2022.04.13 |
| Key Words: drip irrigation water amounts organic\|inorganic fertilizer application grape yield quality |
| Author Name | Affiliation | | CHANG Hongda | College of Water Conservancy and Civil Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
Bintuan Key Laboratory of Modern Water\|saving Irrigation, Shihezi, Xinjiang 832000, China | | LV Desheng | College of Water Conservancy and Civil Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
Bintuan Key Laboratory of Modern Water\|saving Irrigation, Shihezi, Xinjiang 832000, China | | WANG Zhenhua | College of Water Conservancy and Civil Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
Bintuan Key Laboratory of Modern Water\|saving Irrigation, Shihezi, Xinjiang 832000, China | | ZHU Yan | College of Water Conservancy and Civil Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
Bintuan Key Laboratory of Modern Water\|saving Irrigation, Shihezi, Xinjiang 832000, China | | LI Haiqiang | College of Water Conservancy and Civil Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
Bintuan Key Laboratory of Modern Water\|saving Irrigation, Shihezi, Xinjiang 832000, China | | LI Shiying | College of Water Conservancy and Civil Engineering, Shihezi University, Shihezi, Xinjiang 832000, China
Bintuan Key Laboratory of Modern Water\|saving Irrigation, Shihezi, Xinjiang 832000, China |
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| Abstract: |
| To explore the effects of different irrigation water amounts and organic\|inorganic fertilizer ratios on the irrigation water use efficiency (IWUE)，water consumption (ET), yield, and quality of grapes in the extreme arid area of the Turpan\|Hami Basin, Xinjiang, a field experiment with four irrigation levels of W1, W2, W3, and W4 corresponding to 630, 675, 720 mm and 765 mm, respectively was set up. Four organic fertilizer (OF) and inorganic fertilizer (CF) ratio treatments, corresponding to F1 (70% OF+30% CF), F2 (50% OF+50% CF), F3 (30% OF+70% CF) and control CK (100% CF) were used. The experiment adopted a complete combination design, with a total of 16 treatments. The study results showed that all water and fertilizer treatments had significant effects on the IWUE of “seedless white” grapes. Among them, the W3F2 treatment had the largest IWUE. The water consumption of grapes increased and then decreased, then increased and then decreased with the growth period, reaching the maximum during the berry growth period. The grape yield, single cluster weight, and 100-grain weight showed a trend of first increasing and then decreasing with the increase of irrigation water level. All values reached the maximum in W3F2, which were increased by 24.25%~50.26%, 25.26%~64.65%, and 47.76%~162.00%, respectively when comparing with the control treatment. Compared with the control treatment, the soluble solids, vitamin C, and reducing sugar content of each water and fertilizer treatment were increased by 4.09%~25.95%, 3.21%~27.80%, and 15.53%~40.59%, and the titratable acid content decreased by 1.69%~22.96%. Among them, W4F2 treatment had the highest soluble solids and vitamin C content, and W3F2 treatment had the highest content of reducing sugars. The findings from the study indicated that a reasonable drip irrigation grape irrigation system was the W3F2 treatment (irrigation quota 720 mm, organic fertilizer 50% + inorganic fertilizer 50%). |
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