Agro-climatological risk and the irrigation need in dry regions of Sri-Lanka

Weerasinghe K.D.N.. 1990. Agro-climatological risk and the irrigation need in dry regions of Sri-Lanka. Montpellier : CIRAD-IRAT, 116 p.

Résumé : In the present work an analysis of daily rainfall of 19 rainfall stations in dry, wet and intermediate zones of sri-lanka, for Initial and conditional probabilities in weekly and monthly intervals are presented;it highlights the rainfall distribution pattern and climatic risk of wetland rice,especially in the dry regions of the country. It also discussed a methodology to decide upon the crop establishment time, and the crop performance probabilities,by exploiting the forward and backward moisture accumulation curves.In the final part of the work, a crop performance probability map and the maps of irrigation need for both 'Yala' and 'Maha' seasons, in normal and dry years are presented.

Classification Agris : F01 - Culture des plantes
P40 - Météorologie et climatologie

Auteurs et affiliations

• Weerasinghe K.D.N.

Source : Cirad-Agritrop (https://agritrop.cirad.fr/584840/)

Métriques

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