Productive water use in aerobic rice cultivation

Chan C. S., . and H. Zainudin, . and A. Saad, . and M. Azmi, . Productive water use in aerobic rice cultivation. pp. 117-126. ISSN 1394-9829

Studies were conducted to evaluate both lowland and aerobic rice performances under different irrigation methods and soil moisture regimes. Results showed that aerobic rice cultivated under overhead sprinkler irrigation required least amount of water but more susceptible to foliar diseases. With supplementary irrigation grain yield obtained ranged from 2.2 to 3.6 t/ha and the seasonal field water requirement was between 442 and 763 mm. Light and frequent irrigation was better when compared to heavy and occasional irrigation to avoid unnecessary water stress that could cause yield reduction. As much as 50 yield reduction was recorded if water stress occurred during heading and early grain formation periods. Despite lower crop yield studies showed that aerobic rice cultivation used much less water for production. This in turn improved water productivity from 0.4 to 0.6 kg/m3 compared to irrigated wetland rice. The reduction in the water used was mainly attributed to the reduced seepage and percolation losses decrease in evaporation since there was no standing water in the field and also water required during pre-saturation period for land puddling was completely discarded.

Full text available from: Official URL: http://jtafs.mardi.gov.my/jtafs/40-1/Aerobic%20ric...

Abstract

Studies were conducted to evaluate both lowland and aerobic rice performances under different irrigation methods and soil moisture regimes. Results showed that aerobic rice cultivated under overhead sprinkler irrigation required least amount of water but more susceptible to foliar diseases. With supplementary irrigation grain yield obtained ranged from 2.2 to 3.6 t/ha and the seasonal field water requirement was between 442 and 763 mm. Light and frequent irrigation was better when compared to heavy and occasional irrigation to avoid unnecessary water stress that could cause yield reduction. As much as 50 yield reduction was recorded if water stress occurred during heading and early grain formation periods. Despite lower crop yield studies showed that aerobic rice cultivation used much less water for production. This in turn improved water productivity from 0.4 to 0.6 kg/m3 compared to irrigated wetland rice. The reduction in the water used was mainly attributed to the reduced seepage and percolation losses decrease in evaporation since there was no standing water in the field and also water required during pre-saturation period for land puddling was completely discarded.

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Item Type:	Article
AGROVOC Term:	Rice
AGROVOC Term:	Cultivation
AGROVOC Term:	Water use
AGROVOC Term:	Aerobic conditions
AGROVOC Term:	Water management
AGROVOC Term:	Yields
AGROVOC Term:	Lowland
AGROVOC Term:	Crop performance
AGROVOC Term:	Irrigation methods
AGROVOC Term:	Soil moisture
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24484

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