Agronomy and Horticulture, Department of

 

Department of Agronomy and Horticulture: Faculty Publications

Document Type

Article

Date of this Version

1994

Citation

Philippine Journal of Weed Science (1994) Special issue: 29-44

Comments

Used by permission

Abstract

Yield loss models have been developed and evaluated for irrigated rice ecosystems with respect to effects of Echinochloa crusgalli. Simple regression models that give the relation between yield loss and weed density or relative leaf area are discussed with respect to their practical value in weed management in rice. More complex eco-physiological process models have been developed and used for rice ecosystems as well. Such models can be useful as a tool in research, whereas more simple approaches are needed for practical application in weed management.

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