Sokoine University of Agriculture

Integrated catchment characteristics, runoffwater reservoir capacities and irrigation - requirement for bean productivity

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dc.contributor.author Singa, D. D.
dc.contributor.author Tumbo, S. D.
dc.contributor.author Mahoo, H. F.
dc.contributor.author Rwehumbiza, F. B. R.
dc.contributor.author Lowole, M. W.
dc.date.accessioned 2017-06-15T11:08:36Z
dc.date.available 2017-06-15T11:08:36Z
dc.date.issued 2013
dc.identifier.uri https://www.suaire.sua.ac.tz/handle/123456789/1609
dc.description African Crop Science Conference Proceedings 2013, Vol. 11: 835 - 843 en_US
dc.description.abstract Crop production in semi-arid Sub-Saharan Africa (SSA) is limited by over-reliance on rainfall, which is erratic and inadequate. Rainwater conservation and irrigation are needed to avert drought effects and dry spells, and extend crop production activities to dry seasons. A study was conducted from 2011 to 2013 at Ukwe area in Malawi, to determine the size of seasonal open surface reservoir and crop field in relation to catchment characteristics among smallholder farming communities, using beans as a case study crop. There is positive linear relationship between seasonal harvested watershed runoff and rainfall (over 75%). Based on the catchment characteristics and crop water requirement, catchment/cultivated area ratio was 2.1. Harvested runoff water is linearly related to seasonal rainfall amount. About 6000 m3 of water was required to irrigate a hectare of beans. Total volume harvested was estimated to support six-fold the current field area at bean water productivity of 0.7 g L-1. It is possible to determine dry season bean water productivity based on integrated effects of catchment characteristics, runoff water reservoir capacities and irrigation water requirement. en_US
dc.language.iso en en_US
dc.subject Beans en_US
dc.subject Irrigation en_US
dc.subject Productivity en_US
dc.subject Runoff en_US
dc.title Integrated catchment characteristics, runoffwater reservoir capacities and irrigation - requirement for bean productivity en_US
dc.type Conferencce Proceedings en_US


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