Development of sustainable legume production in rice-based farming systems in Cambodia

Eastick, Rowena, Seng, Vang, Ouk, Makara, Chea, Sareth, Som, Bunna, Chea, Vuthea, Mitchell, Jaquie and Fukai, Shu (2010). Development of sustainable legume production in rice-based farming systems in Cambodia. In: H. Dove and R. A. Culvenor, Food security from sustainable agriculture: Proceedings of 15th Agronomy Conference 2010. 15th Australian Agronomy Conference, Lincoln, New Zealand, (). 15-18 November 2010.

Author Eastick, Rowena
Seng, Vang
Ouk, Makara
Chea, Sareth
Som, Bunna
Chea, Vuthea
Mitchell, Jaquie
Fukai, Shu
Title of paper Development of sustainable legume production in rice-based farming systems in Cambodia
Conference name 15th Australian Agronomy Conference
Conference location Lincoln, New Zealand
Conference dates 15-18 November 2010
Proceedings title Food security from sustainable agriculture: Proceedings of 15th Agronomy Conference 2010
Place of Publication Gosford, NSW, Australia
Publisher The Regional Institute
Publication Year 2010
Sub-type Fully published paper
Editor H. Dove
R. A. Culvenor
Total pages 5
Language eng
Abstract/Summary Lowland rice production is the dominant agricultural enterprise in Cambodia, traditionally grown as a single crop over the wet season, with land remaining fallow over the dry season. Development of a farming system where legumes are produced in the dry season following wet season rice, poses numerous constraints. These include: poor soil quality characteristic of lowland rice soils, provision and maintenance of adequate soil moisture over the dry season, and management of a novel crop for traditional rice farmers. A series of experiments were conducted from 2007 to 2010 to evaluate a number of production variables on two legume crops, mungbean and peanut, sown post-wet season rice. In lighter soils where legumes appear suitable for growth, soil-stored water from the wet season is not sufficient to grow legume crops, and supplementary irrigation water is required. Comparison between three bed configurations using gravity fed irrigation, and the traditional watering can method, found that flood irrigation on flat beds could improve yields, and farmers preferred this method over the labour intensive hand-watering method, although water use increased. Use of rice straw as mulch reduced weed growth and promoted legume growth, and increased water use efficiency. Future work will need to determine the most efficient bed configuration to facilitate irrigation and to optimise plant population, and to evaluate specific irrigation scheduling on the amount and timing of water required, in different soil types for more sustainable rice based dry season legume farming systems.
Keyword Mungbean
Mulch
Lowland
Double cropping
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Agriculture and Food Sciences
 
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Created: Wed, 16 Mar 2011, 10:05:33 EST by Mrs Jaquie Mitchell on behalf of School of Land, Crop and Food Sciences