| Study on effect of using different water absorbents on jujube in slope land under the condition of drip irrigation |
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| DOI：10.7606/j.issn.1000-7601.2009.03.15 |
| Key Words: drip irrigation water absorbent jujube tree |
| Author Name | Affiliation | | WANGN Yong | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China；Nationnal Engineering Reasearch Center for Water-saving Irrigation at Yangling, Yangling, Shaanxi 712100, China | | WANG Xing | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | WANG Youke | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China；Institute of Soil and Water Conservation CAS and MWR, Yangling, Shaanxi 712100, China；Nationnal Engineering Reasearch Center for Water-saving Irrigation at Yangling, Yangling, Shaanxi 712100, China | | SONG Haiyan | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China；Nationnal Engineering Reasearch Center for Water-saving Irrigation at Yangling, Yangling, Shaanxi 712100, China | | YANG Zhiyi | Institute of Soil and Water Conservation CAS and MWR, Yangling, Shaanxi 712100, China |
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| Abstract: |
| Through the field experiment for the purpose of studying the effect of using water absorbent on jujube in slope under the condition of drip irrigation.The results showed that the soil water of under water absorbent treatments raised by 15.3%～39.2% compared to the control,keeping higher water storage in 10～70 cm soil layer.In cases of the many years of the 395 mm rainfall during growth period, 4 times of irrigation is needed for Jujube trees in the whole growth period(210 d),with an interval of about 55 days.However,with the treatments of water absorbent,two times of irrigation can be reduced,saving 264 m3 water per hectare,and the average bulk density of soil is reduced by 0.05～0.16 g/cm3 in 0～60 cm,thus improving soil physical properties of air and water permeability and promoting the growth and development of jujube trees.Compared to 5.6 kg per tree of the control,the yield of a four-year-old jujube tree is increased by 2.85 kg.Among different water absorbents,Hs and Hm show better suitability. |
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