| Experimental study on reasonable irrigation water for mature grape-vine during germination period in extremely arid region |
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| DOI：10.7606/j.issn.1000-7601.2011.03.03 |
| Key Words: grape-vine irrigation water deep irrigation the method of boundary-benefit analysis germination rate arid region |
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| Abstract: |
| In the extremely arid climate and coarse texture soil containing stone, in order to find out the reasonable
irrigation water for mature grape-vine in germination period, under the condition of deep-pit irrigation with six different treatments，the relationship between germination rate and irrigation was analyzed with the method of boundary benefit analysis. The main findings are as follows: The more irigation water in germination period, the better uniformity of ger-mination and the less irrigation water in germination period, the worse uniformity of gemination. Both the function of wa-ter traits and the function of water traits efficiency was established. The maximum qermination rate was 78.25%0 with an irrigation water of 62 844 m3/ hm2，and the maximum water traits eficiency with an irigation water of 54 545 m3/hm2. The range of reasonable imigation quota for grape vine was from 54 545 m/hm2 to 62 844 m/hm2. |