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Position: Home > Articles > Yield gap and production constraints of mango (Mangifera indica) cropping systems in Tianyang County, China Journal of Integrative Agriculture 2019,18 (8)

Yield gap and production constraints of mango (Mangifera indica) cropping systems in Tianyang County, China

作者：

Zhang Dong;Wang Chong;Li Xiao-lin

单位：

China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China;Minstry Educ, Key Lab Plant Soil Interact, Beijing 100193, Peoples R China

关键词：

smallholder;boundary line analysis;yield gap model;fertilization;planting density

摘要：

Mango is an important cash crop in the tropics and subtropics. Determining the yield gap of mango and production constraints can potentially promote the sustainable development of the mango industry. In this study, boundary line analysis based on survey data from 103 smallholder farmers and a yield gap model were used to determine the yield gap and production constraints in mango plantations in the northern mountain, central valley and southern mountains regions of Tianyang County, Guangxi, China. The results indicated that the yield of mango in three representing regions of Tianyang County, Northern Mountains, Central Valley and Southern Mountains, was 18.3, 17.0 and 15.4 t ha(-1) yr(-1), with an explainable yield gap of 10.9, 6.1 and 14.8 t ha(-1) yr(-1), respectively. Fertilization management, including fertilizer N, P2O5 and K2O application rates, and planting density were the main limiting factors of mango yield in all three regions. In addition, tree age influenced mango yield in the Northern Mountains (11.1%) and Central Valley (11.7%) regions. Irrigation time influenced mango yield in the Northern Mountains (9.9%) and Southern Mountains (12.2%). Based on a scenario analysis, the predicted yield would increase by up to 50%, and fertilizer N use would be reduced by as much as approximately 20%. An improved understanding of production constraints will aid in the development of management strategy measures to increase mango yield.

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Yield gap and production constraints of mango (Mangifera indica) cropping systems in Tianyang County, China

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