- Philippines
Bas Bouman (IRRI)
International Rice Research Institute, GRiSP, Faculty Member
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at different scales
Research Interests: Agriculture and Scarcity
The CGIAR Research Program for Rice, known as the Global Rice Science Partnership (GRiSP), is a partnership coordinated by six research-for-development organizations that bring together over 900 partners from the academic, public,... more
The CGIAR Research Program for Rice, known as the Global Rice Science Partnership (GRiSP), is a partnership coordinated by six research-for-development organizations that bring together over 900 partners from the academic, public, private, and civil society sectors with a stake in the rice development sector. It is noteworthy that the "P" in the GRiSP acronym stands for "partnership" and not for "program." Embedded within GRiSP are many "subpartnerships," such as consortia, networks, platforms, and time-bound projects. Some partnerships are decades old and now aligned with GRiSP's mission and objectives, while other partnerships have just recently been established to serve a specific purpose along GRiSP's impact pathway toward development. All partners are, in one way or another, bound together by a common mission of poverty alleviation, rice food securi-ty, and environmental sustainability and protection. Some partners work on a globa...
The effect of toposequence position on soil properties, hydrology, and yield of rainfed
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... Water-efficient management strategies in rice production. by BAM Bouman. ... Sign up today, find more relevant papers and organise your research all in one place. First name. Last name. E-mail address. ...or sign in with Facebook.... more
... Water-efficient management strategies in rice production. by BAM Bouman. ... Sign up today, find more relevant papers and organise your research all in one place. First name. Last name. E-mail address. ...or sign in with Facebook. Readership Statistics. ...
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ABSTRACT Quantifying water losses in paddy fields assists estimation of water availability in rainfed lowland rice ecosystem. Little information is available on water balance in different toposequence positions of sloped rainfed lowland.... more
ABSTRACT Quantifying water losses in paddy fields assists estimation of water availability in rainfed lowland rice ecosystem. Little information is available on water balance in different toposequence positions of sloped rainfed lowland. Therefore, the aim of this work was to quantify percolation and the lateral water flow with special reference to the toposequential variation. Data used for the analysis was collected in Laos and northeast Thailand. Percolation and water tables were measured on a daily basis using a steel cylindrical tube with a lid and perforated PVC tubes, respectively. Percolation rate was determined using linear regression analysis of cumulative percolation. Assuming that the total amount of evaporation and transpiration was equivalent to potential evapotranspiration, the lateral water flow was estimated using the water balance equation. Separate perched water and groundwater tables were observed in paddy fields on coarse-textured soils. The percolation rate varied between 0 and 3 mm/day across locations, and the maximum water loss by lateral movement was more than 20 mm/day. Our results are in agreement with the previously reported findings, and the methodology of estimating water balance components appears reasonably acceptable. With regard to the toposequential variation, the higher the position in the topoesquence, the greater potential for water loss because of higher percolation and lateral flow rates.
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Traditional lowland rice with continuous flooding in Asia has relatively high water inputs. Because of increasing water scarcity, there is a need to develop alternative systems that require less water. "Aerobic rice" is a new... more
Traditional lowland rice with continuous flooding in Asia has relatively high water inputs. Because of increasing water scarcity, there is a need to develop alternative systems that require less water. "Aerobic rice" is a new concept of growing rice: it is high-yielding rice grown in non-puddled, aerobic soils under irrigation and high external inputs. To make aerobic rice successful, new varieties and management practices must be developed. Results are reported of field experiments and farmer-participatory research in the Huang-Huai-Hai plain, northern China, where newly developed aerobic rice varieties are compared with lowland rice. Highest recorded aerobic rice yields were 4.7—6.6 t ha -1 , compared with 8—8.8 of lowland rice. The variety Han Dao 502 is most promising because of its relatively high yield under both aerobic and flooded conditions and because of its good quality fetching a high market price. Compared with lowland rice, water inputs in aerobic rice were m...
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... Título : Eco-regional approaches for sustainable land use and food production. ... Descriptores_Es:AGRICULTURA; ECOLOGIA; CULTIVOS ALIMENTICIOS; PLANIFICACION REGIONAL; FACTORES AMBIENTALES; UTILIZACION DE LA TIERRA; SOSTENIBILIDAD;... more
... Título : Eco-regional approaches for sustainable land use and food production. ... Descriptores_Es:AGRICULTURA; ECOLOGIA; CULTIVOS ALIMENTICIOS; PLANIFICACION REGIONAL; FACTORES AMBIENTALES; UTILIZACION DE LA TIERRA; SOSTENIBILIDAD; ESTUDIOS ...
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An agroecological approach is presented to simulate time series of ERS SAR radar backscatter of agricultural crops from integrated crop growth (SUCROS), water balance (SAHEL), and radar backscatter (Cloud) modeling. SUCROS is used to... more
An agroecological approach is presented to simulate time series of ERS SAR radar backscatter of agricultural crops from integrated crop growth (SUCROS), water balance (SAHEL), and radar backscatter (Cloud) modeling. SUCROS is used to calculate the amount of water in canopies and SAHEL the amount of water in the top soil, which serve both as driving variables for the Cloud
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... in relation to plant N and weather M. Ohnishi, T. Horie and Y. Koroda 271 Influence of split application of nitrogen on foliar N content, photosynthesis, dry matter production and yield in short-and medium-duration rice cultivars C.... more
... in relation to plant N and weather M. Ohnishi, T. Horie and Y. Koroda 271 Influence of split application of nitrogen on foliar N content, photosynthesis, dry matter production and yield in short-and medium-duration rice cultivars C. Vijayalakshmi and M. Nagarajan 285 Systems ...
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Research Interests: Civil Engineering, Irrigation, Water Engineering, Performance, China, and 15 moreAgricultural Water Management, Soil moisture, Cultivar, Water Saving, Water scarcity, Water Conservation, Chine, North, Gramineae, Scarcity, Water Productivity, Field capacity, Soil moisture content, Agricultural water, and plain
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The potential of aerobic rice to reduce water use in water-scarce irrigated lowlands in the tropics AR Castañeda, BAM Bouman, S. Peng, and RM ... Three water treatments were used as the main plot:(1) aerobic conditions in the DS and the... more
The potential of aerobic rice to reduce water use in water-scarce irrigated lowlands in the tropics AR Castañeda, BAM Bouman, S. Peng, and RM ... Three water treatments were used as the main plot:(1) aerobic conditions in the DS and the WS (AA),(2) aerobic in the DS but ...