This is one of 280 summaries describing key outputs from the projects
run by DFID's 10-year Renewable Natural Resources Research Strategy
Principally based on Projects R7345, R8198 and R8477. New practices for
managing infestations of wild rice species in lowland rice in West and
East Africa have been developed and validated by farmers. Such
infestations can reduce rice yields by up to 2 tonnes per hectare, and
require a lot of labour for weeding. Plus, rice contaminated with seeds
of wild species sells for only half the market price. In Ghana, farmers
preferred to spray with glyphosate before planting, or to switch to
transplanting in bunded fields if they couldn't afford herbicide. In
Tanzania, farmers took up a reduced tillage-plus-herbicide system as it
was a costeffective labour-saving option that could even reclaim land
previously abandoned to wild rice. These practical options are ready for
out-scaling to large areas, and extension materials already exist.
The CD has the following information for this output: Description,
Validation, Current Situation, Environmental Impact. Attached PDF (8
pp.) taken from the CD.
CPP31, New technologies, new processes, new policies: tried-and-tested and ready-to-use results from DFID-funded research, Research Into Use Programme, Aylesford, Kent, UK, ISBN 978-0-9552595-6-2, p 35.