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Crop and Soil Responses to Post-emergence Tillage and Weed Control in Lowland Rice

Published online by Cambridge University Press:  03 October 2008

Joel D. L. C. Siopongco ,
Keith T. Ingram ,
Paquito P. Pablico  and
Keith Moody
Joel D. L. C. Siopongco
Affiliation:
Agronomy, Plant Physiology and Agroecology Division, International Rice Research Institute, Los Baños, Laguna, Philippines
Keith T. Ingram
Affiliation:
Agronomy, Plant Physiology and Agroecology Division, International Rice Research Institute, Los Baños, Laguna, Philippines
Paquito P. Pablico
Affiliation:
Agronomy, Plant Physiology and Agroecology Division, International Rice Research Institute, Los Baños, Laguna, Philippines
Keith Moody
Affiliation:
Agronomy, Plant Physiology and Agroecology Division, International Rice Research Institute, Los Baños, Laguna, Philippines
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Summary

Beusani is a rice crop management system practised in rainfed lowland areas of eastern India whereby rice is dry-seeded, then wet-ploughed at 30–50 days after emergence and the land levelled by drawing a board across the field. Field experiments showed that beusani enhances rooting, especially in shallow soil layers, as a result of reduced penetration resistance. Although beusani reduced weed biomass by 38%, it was not as effective as application of herbicide followed by hand weeding, which reduced biomass by 87%. Yields were directly related to weed control, so beusani treatments did not yield as much as the herbicide plus hand weeding treatments in these experiments.

Type
Research Article
Information
Experimental Agriculture , Volume 30 , Issue 1 , January 1994 , pp. 95 - 103
Copyright
Copyright © Cambridge University Press 1994

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References

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