| 棉田地下滴灌土壤水分变化及需水规律初探 |
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| 作者姓名： | 孔繁宇 胡同军 |
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| 作者单位： | 新疆兵团农五师90团,新疆兵团农五师90团 新疆博乐 833409,新疆博乐 833409 |
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| 基金项目： | 新疆生产建设兵团农五师科委"棉花地埋式滴灌技术研究与示范"项目(2003012). |
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| 摘 要： | 在大田实地观测的基础上,对地下滴灌水分变化、棉花各生育阶段蒸腾量进行测定,同时取棉花根系观察,结果表明:地下滴灌棉田土壤水分变化深度主要在20-60cm;棉花根系分布在10-80cm范围,主要集中在15-50cm,并且有两个明显的根系层;博乐垦区棉花日均耗水量苗期为1.4mm／d,蕾期为2.3mm／d,花铃期为3.8mm／d,絮期为1.5mm／d,并由此制定该地区的灌水制度。
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| 关 键 词： | 地下滴灌 棉田 土壤水分变化 需水规律 |
Underground Drop Fill the Soil Moisture Change of Cotton Field and Need Water Law |
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| Authors: | Kong Fanyu Hu Tongjun |
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| Institution: | 90 groups of five agricultural divisions of formation of production and construction of Xinjiang 833409 |
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| Abstract: | This paper analyzed moisture change and cotton on the foundation of the big field observation on-the-spot, for underground drop give birth to stage each to rise, quantity is surveyed, at the same time, cotton root is observed, The result is: underground drop fill the soil moisture change depth of cotton field major in 20-60 cm; cotton is thoroughly spread in 10-80 cm scope, major concentration in 15-50 cm, and have two obvious root departments layer; the rich happy cotton of reclamation area day the seedling stage of water consumption is 1.4 mm/d, bud stage is 2.3 mm/d, blooming and fruiting stage is 3.8 mm/d, boll opening stage is 1.5 mm/d, fill water system by this established this region. |
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| Keywords: | Underground drip irrigation Cotton field Changing of soil moisture Law of water needing |
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