7 results on '"Punyawardena, R."'
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2. Improving water productivity in moisture-limited rice-based cropping systems through incorporation of maize and mungbean: A modelling approach
3. Modelling the impact of changes in rainfall distribution on the irrigation water requirement and yield of short and medium duration rice varieties using APSIM during Maha season in the dry zone of Sri Lanka
4. Aligning Sowing Dates with the Onset of Rains to Improve Rice Yields and Water Productivity: Modelling Rice (Oryza sativa L.) Yield of the Maha Season in the Dry Zone of Sri Lanka
5. Simulation of crop and water productivity for rice (Oryza sativa L.) using APSIM under diverse agro-climatic conditions and water management techniques in Sri Lanka
6. Seasonal changes in temperature and rainfall and its relationship with the incidence of weeds and insect pests in rice (Oryza sativaL) cultivation in Sri Lanka
7. Socio - Economic Characteristics of Farmers Influencing Adaptation to Climate Change: Empirical Results from Selected Homegardens in South Asia with Emphasis on Commercial Orientation
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