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Competition from weeds is one of the major biophysical constraints to rice (Oryza spp.) production in sub-Saharan Africa. Smallholder rice farmers require efficient, affordable and labour-saving weed management technologies. Mechanical weeders have shown to fit this profile. Several mechanical we...


Johnson, J-M.Rodenburg, J.Tanaka, A.Senthilkumar, K.Ahouanton, K.Dieng, I.Klotoe, A.Akakpo, C.Segda, Z.Yameogo, L.P.Gbakatchetche, H.Acheampong, G.K.Bam, R.K.Bakare, O.S.Kalisa, A.Gasore, E.R.Ani, S.Ablede, K.Saito, K.[Farmers' perceptions on mechanical weeders for rice production in sub-Saharan Africa]Farmers' perceptions on mechanical weeders for rice production in sub-Saharan Africa

The Soil and Water Assessment Tool (SWAT) was used to simulate water balances in different cropping patterns under current and future climates in West Seti river Sub-basin, which is located in the far western region of Nepal. The results show that total precipitation over rice, maize, millet, whe...


Pabitra, GurungBharati, LunaSaroj, K.[Impact of climate change and watershed interventions on water balance and crop yield in West Seti river sub-basin of Nepal]Impact of climate change and watershed interventions on water balance and crop yield in West Seti river sub-basin of Nepal

Nitrogen is the nutrient with greatest influence on yield and cost production of rice; it is then necesary to look for its most efficient use. Three field experiment were carried out to determine the agornomic efficiency of four urea forms (prilled, forestry grade, supergranules and sulfur-coated...


Arregocés, Oscar[Evaluación de la eficiencia agronómica de cuatro formas de urea en el cultivo del arroz]Evaluación de la eficiencia agronómica de cuatro formas de urea en el cultivo del arroz
Posada Torres, Rafael[Utilización de variedades mejoradas de arroz por el pequeño agricultor: factores que afectan la toma de decisiones]Utilización de variedades mejoradas de arroz por el pequeño agricultor: factores que afectan la toma de decisiones
Muñoz Arguedas, GuillermoPoey Diago, Federico Raúl[Evaluación de la metodología tradicional en la descripción de variedades de arroz]Evaluación de la metodología tradicional en la descripción de variedades de arroz

Increased use of irrigation and nitrogen (N) in rice and wheat would increase productivity. It would also enhance the emission of greenhouse gases from soil causing global warming and climate change. This study quantified the trade-offs between increased production with N fertilizer and irrigatio...


Bhatia, ArtiPathak, HimanshuAggarwal, Pramod K.Jain, Niveta[Trade-off between productivity enhancement and global warming potential of rice and wheat in India]Trade-off between productivity enhancement and global warming potential of rice and wheat in India
Cruz García, Gisella S.Struik, Paul C.Johnson, David E.[Wild harvest: distribution and diversity of wild food plants in rice ecosystems of Northeast Thailand]Wild harvest: distribution and diversity of wild food plants in rice ecosystems of Northeast Thailand
Zuñiga-Soto, EvelynMullins, EwenDedicova, Beata[Ensifer-mediated transformation: an efficient non-Agrobacterium protocol for the genetic modification of rice]Ensifer-mediated transformation: an efficient non-Agrobacterium protocol for the genetic modification of rice
Ziska, Lewis H.Gealy, David R.Burgos, NildaCaicedo, Ana L.Gressel, JonathanLawton-Rauh, Amy LAvila, Luis ATheisen, GiovaniNorsworthy, JasonFerrero, AldoVidotto, FrancescoJohnson, David E.Ferreira, Felipe GMarchesan, EnioMenezes, ValmirCohn, Marc A.Linscombe, StevenCarmona, LucianoTang, RuiMerotto, Aldo[Weedy (Red) rice: an emerging constraint to global rice production]Weedy (Red) rice: an emerging constraint to global rice production

70% of the world’s freshwater is used for irrigated agriculture and demand is expected to increase to meet future food security requirements. In Asia, rice accounts for the largest proportion of irrigated water use and reducing or conserving water in rice systems has been a long standing goal in ...


Nelson, AndrewWassmann, ReinerSander, Bjoern OlePalao, Leo Kris[Climate-Determined Suitability of the Water Saving Technology "Alternate Wetting and Drying" in Rice Systems: A Scalable Methodology demonstrated for a Province in the Philippines]Climate-Determined Suitability of the Water Saving Technology "Alternate Wetting and Drying" in Rice Systems: A Scalable Methodology demonstrated for a Province in the Philippines

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