University of Wolverhampton
Browse
Collection All
bullet
bullet
bullet
bullet
Listed communities
bullet
bullet
bullet
bullet
bullet
bullet
bullet
bullet
bullet
bullet
bullet
bullet
bullet

Wolverhampton Intellectual Repository and E-Theses > School of Applied Sciences > Research Centre in Applied Sciences  > Plant and Environmental Research Group > Improving maize productivity and conserving soil on sloping land in Yunnan province, P.R. China

Please use this identifier to cite or link to this item: http://hdl.handle.net/2436/67771
    Del.icio.us     LinkedIn     Citeulike     Connotea     Facebook     Stumble it!



Title: Improving maize productivity and conserving soil on sloping land in Yunnan province, P.R. China
Other Titles: Soil Science: Confronting New Realities in the 21st Century
Authors: Huang, Bizhi
Wu, Bozhi
Liu, Liguang
Hocking, Trevor J.
Fullen, Michael A.
Mitchell, David J.
Citation: In: 17th World Congress of Soil Science, Soil Science: Confronting New Realities in the 21st Century, 14-21 August 2002, Thailand.
Issue Date: 2002
URI: http://hdl.handle.net/2436/67771
Abstract: Yunnan province is 94% mountainous and maize is one of the major arable crops grown in uplands areas. Increasing the productivity of maize crops on sloping land in the province is an important priority to improve rural incomes and reduce cultivation pressures on the more fragile, marginal land. At present, few soil conservation techniques are employed with maize cultivation to reduce erosion. This field-based study investigated the effectiveness of cultivation practices designed to improve productivity, while maintaining or enhancing soil conservation. This investigation was carried out in Wang Jia Catchment, selected as a representative area of fragile slopes in Yunnan province. Five cultivation treatments, including the use of contour planting, straw and polythene mulches, were selected for evaluation and established on replicated field plots in 1998 and 1999. Crop growth parameters, soil temperature and soil moisture were measured during the growing season and yield was determined at harvest. Straw mulch with contour planting retained soil moisture and was associated with lower soil temperatures. Polythene mulch improved soil moisture retention when the polythene was applied after irrigation and increased soil temperatures by up to 4 C. The changes were associated with increases in green leaf area index, green leaf area duration and crop yield, which was increased by up to 51.6% compared to unmulched plots. The effectiveness of theses mulches in reducing runoff and erosion has been evaluated in parallel erosion plot studies (Barton, 1999; Milne, 2001). It is concluded that a cultivation technique combining contour planting with early irrigation and polythene and straw mulches would be the most effective for increasing productivity and improving soil conservation on sloping land in Yunnan province.
Type: Meetings & Proceedings
Language: en
Keywords: Crop productivity
Soil erosion
Straw mulch
Polythene mulch
Yunnan Province
Agro-environmental sustainability
Appears in Collections: Plant and Environmental Research Group

Files in This Item:
File Description Size Format View/Open
Improving maize productivity.pdf7444KbAdobe PDFThumbnail
View/Open

All Items in WIRE are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Fairtrade - Guarantees a better deal for Third World Producers

University of Wolverhampton, Wulfruna Street, Wolverhampton, WV1 1LY

Course enquiries: 0800 953 3222, General enquiries: 01902 321000,
Email: enquiries@wlv.ac.uk | Freedom of Information | Disclaimer and copyright | Website feedback | The University as a charity

OR Logo Powered by Open Repository | Cookies