Effects of Irrigation Methods on Soil Water Distribution and Optimum Irrigation Schedule in Apple Orchard(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effects of Irrigation Methods on Soil Water Distribution and Optimum Irrigation Schedule in Apple Orchard

Author(s):: WEI Yafen1; 2; ZHANG Chunman3; WANG Ying1; ZHU Jun4; JIN Jishi4; (1.College of Forestry，Beijing Forestry University,Beijing 100083;2.Beijing Forestry Society,Beijing 100029;3.Beijing Miyun Dongshaoqu Forestry Station，Beijing 101501;4.Beijing Puquan Science and Technology Co.Ltd.,Beijing 100044)

Abstract:: Taking ‘Kudo Fuji’ apple tree as the research object，small-scaled water-saving irrigation experiments were conducted on fields and on a close-by apple orchard in August 2016.Examining two irrigation methods (drip irrigation and trace irrigation) parameters，such as soil water distribution，irrigation water use efficiency，and the amount of irrigation water were monitored.In order to establish an optimum irrigation regime the physiological water demand of trees was considered.The results showed that soil water distribution patterns varied by irrigation method and amount of irrigation water employed.Trace irrigation showed higher irrigation water use efficiency than in drip irrigation.Furthermore，the optimum irrigation regime of apple trees during August revealed to be trace irrigation with an irrigation quota of 12 L per individual tree and an average water flow of 0.2 L per hour，irrigating once every three to four days.

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Last Update: 2017-03-22