Deepwater Rice - Brian Taylor

Deepwater Rice - Weeds

The predominatly aquatic environment of deepwater rice has a beneficial effect in that there are few serious weed problems once the fields have become inundated. Weeds in the pre-flood period are those of any normal field and are dealt with mainly by handweeding. The weeding process has the secondary benefical effect of thinning out a crop which otherwise competes with itself and provides useful fodder for farm animals in a country with virtually no pasture land.

Water Hyacinth - spp - reputedly imported as an ornamental and, as elsewhere in the world, a major weed of waterways, almost impossible to control (although biological control with an insect has had some effect in other countries)

Open spaces often fill with water hyacinth...
but surface level strips of bamboo will retain the weed - piled remains on right foreground

Water Lilies - although an artificial environment - this deepwater tank at BRRI illustrates how water lilies can take over open spaces in a DWR field

Water Lilies -
-

©2000 - Brian Taylor CBiol FIBiol FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.
Visiting Academic in the Department of Life Science, University of Nottingham

href="\dwr\pests\weeds.htm"

Water Hyacinth - spp - reputedly imported as an ornamental and, as elsewhere in the world, a major weed of waterways, almost impossible to control (although biological control with an insect has had some effect in other countries)
Open spaces often fill with water hyacinth...	but surface level strips of bamboo will retain the weed - piled remains on right foreground

Water Lilies - although an artificial environment - this deepwater tank at BRRI illustrates how water lilies can take over open spaces in a DWR field
Water Lilies -	-