| Cite this article: | 温越,王振华,李文昊,等.调亏灌溉与施肥配比对滴灌葡萄生长、产量及品质的影响[J].灌溉排水学报,0,():-. |
| wenyue,wangzhenhua,liwenhao,et al.调亏灌溉与施肥配比对滴灌葡萄生长、产量及品质的影响[J].灌溉排水学报,0,():-. |
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| Effects of Regulated Deficit Irrigation and Fertilization Proportion on Grape Growth, Yield and Quality under Drip Irrigation |
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wenyue, wangzhenhua, liwenhao, dinghongwei, zoujie, chenrui, zhangjianli
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Shihezi University
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| Abstract: |
| 【Background】 Irrigation is extensive in extreme arid areas, and fertilizer application is unreasonable.【Objective】 In order to explore the rational irrigation and fertilization system for drip irrigation grapes in extreme arid regions (Tuha Basin), the effects of water and fertilizer ratio on grape growth index, yield and quality were studied. 【Method】 The field experiment method was used to complete the two-factor test design of the ratio of irrigation and fertilization treatments. Seedless white grapes were regulated deficit irrigation during the shoot growth period, flowering period, berry growth period and berry mature period and full irrigation during the whole growth period was used as a control group (marked as W1, W2, W3, W4, CK, respectively), and the fertilizer ratio was set to N: P2O5: K2O = 1: 1: 1, 2: 2: 3, 2: 1: 2 (marked as F1, F2, F3, respectively) and the fertilization amount during the whole growth period of each treatment was 825 kg/hm2, a total of 15 treatments, and 3 repetitions.【Result】According to the analysis of the test data, the regulated deficit irrigation during the berry mature period showed no significant difference in the length of new shoots, stem thickness and yield compared with full irrigation, but the soluble solids and reducing sugar increased by 7.80% and 5.61% compared with full irrigation, and the amount of titrable acid is reduced by 22.19%.Under the same irrigation level, compared with the local fertilization ratio F3 (N 330.0 kg/hm2 + P2O5 165.0 kg/hm2 + K2O 330.0 kg/hm2), the new shoots length, stem diameter and yield of F2 treatment increased by 5.48%, 1.03% and 3.95%, soluble solids and reducing sugars increased by 4.29% and 9.90%, respectively, while the amount of titrable acid decreased by 8.72%.【Conclusion】When the seedless white grapes are regulated deficit irrigation during the berry mature period, and the fertilization ratio F2 (N 235.7 kg/hm2 + P2O5 235.7 kg/hm2 + K2O 353.6 kg/hm2）is used, drip irrigation of grapes in extreme arid areas can effectively achieve the purpose of saving water and improving quality. |
| Key words: seedless white grape; drip irrigation; regulated deficit irrigation; fertilization ratio; growth index; yield; quality |
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