Managements of Fertigation With Surround Drip Irrigation on the Influence of the Yield，Quality and WUE of Apple Trees(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Managements of Fertigation With Surround Drip Irrigation on the Influence of the Yield，Quality and WUE of Apple Trees

Author(s):: WANG Zhiping1; ZHOU Jihua1; LIU Baowen2; AN Shunwei1; YANG Haixia2; (1.Beijing Agricultural Technology Extension Station，Beijing 100029；2.Agricultural Service Center in Changping District，Beijing 100029)

Keywords:: surround drip irrigation; controlled by tensiometer; fertigation managements; yield; WUE; quality

Abstract:: In order to solve the abuse water and fertilizer in conventional irrigation and ferlitilization，the surround drip fertigation with tensiometers to trigger fertigation at different water potential of soil were surveyed for the effect on the yield，quality and WUE of apple trees with conventional control in orchards in Changping district，Beijing.The results showed that the fertigation managements appeared better，fertigating with 225-525 mm water and 60-120 kg/hm2 soluble fertilizer when tensiometer indicated -25 kPa water potential of soil.Compare with the control，the fertigation managements saved 29% water，49%-67% pure nutrient，while the yield of apples increased 44%-85%.The management increased water usage efficiency by 93-117 kg/mm，and the soluble solid content in apples with 18-21 percentage.

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Last Update: 2016-04-25