Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand
Water availability is one of the determinants of productivity of rainfed lowland rice (Oryza sativa L.). Quantifying water losses from a paddy field, such as deep percolation and lateral seepage, assists estimation of water availability to the rice crop and development of appropriate water managemen...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2007-01-01
|
| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.10.232 |
| _version_ | 1828433755582234624 |
|---|---|
| author | Mitsuru Tsubo Shu Fukai Jayampathi Basnayake To Phuc Tuong Bas Bouman Dome Harnpichitvitaya |
| author_facet | Mitsuru Tsubo Shu Fukai Jayampathi Basnayake To Phuc Tuong Bas Bouman Dome Harnpichitvitaya |
| author_sort | Mitsuru Tsubo |
| collection | DOAJ |
| description | Water availability is one of the determinants of productivity of rainfed lowland rice (Oryza sativa L.). Quantifying water losses from a paddy field, such as deep percolation and lateral seepage, assists estimation of water availability to the rice crop and development of appropriate water management in the lowlands. The main objective of this study was to evaluate paddy water availability and productivity across various soils in Northeast Thailand. The daily rate of downward water flow from standing water in the field (D) varied between 0 and 3 mm day-1 from clayey to sandy soils when the standing water was connected to groundwater table. However, when the standing water was separated from groundwater table, D increased up to 5 mm day-1 on soils with very low clay content in the topsoil. Daily net lateral water flow from the field (L) averaged over the season varied between 5 and 24 mm day-1 for the outflow and between 3 and 16 mm day-1 for the inflow. Both the inflow and outflow tended to be associated negatively with the soil clay content. The seasonal water loss through D plus L during the growing season in the lowlands was also negatively related to the soil clay content. The yield of a major rainfed lowland rice cultivar in Northeast Thailand (KDML105) varied from 2 to 4 t ha-1 across the region, and the water productivity (the ratio of grain yield to cumulative rainfall from transplanting/seedling establishment to maturity) ranged from 3 to 9 kg ha-1 mm-1. High clay soils could provide good standing water until late in the growing season, so the high production efficiency was measured on such soils. |
| first_indexed | 2024-12-10T18:40:18Z |
| format | Article |
| id | doaj.art-bd253528c5e2458fa1dc686fd8c5981f |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-10T18:40:18Z |
| publishDate | 2007-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-bd253528c5e2458fa1dc686fd8c5981f2022-12-22T01:37:41ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082007-01-0110223224110.1626/pps.10.23211644834Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast ThailandMitsuru Tsubo0Shu Fukai1Jayampathi Basnayake2To Phuc Tuong3Bas Bouman4Dome Harnpichitvitaya5The University of QueenslandThe University of QueenslandThe University of QueenslandInternational Rice Research InstituteInternational Rice Research InstituteUbon Ratchathani Rice Research CenterWater availability is one of the determinants of productivity of rainfed lowland rice (Oryza sativa L.). Quantifying water losses from a paddy field, such as deep percolation and lateral seepage, assists estimation of water availability to the rice crop and development of appropriate water management in the lowlands. The main objective of this study was to evaluate paddy water availability and productivity across various soils in Northeast Thailand. The daily rate of downward water flow from standing water in the field (D) varied between 0 and 3 mm day-1 from clayey to sandy soils when the standing water was connected to groundwater table. However, when the standing water was separated from groundwater table, D increased up to 5 mm day-1 on soils with very low clay content in the topsoil. Daily net lateral water flow from the field (L) averaged over the season varied between 5 and 24 mm day-1 for the outflow and between 3 and 16 mm day-1 for the inflow. Both the inflow and outflow tended to be associated negatively with the soil clay content. The seasonal water loss through D plus L during the growing season in the lowlands was also negatively related to the soil clay content. The yield of a major rainfed lowland rice cultivar in Northeast Thailand (KDML105) varied from 2 to 4 t ha-1 across the region, and the water productivity (the ratio of grain yield to cumulative rainfall from transplanting/seedling establishment to maturity) ranged from 3 to 9 kg ha-1 mm-1. High clay soils could provide good standing water until late in the growing season, so the high production efficiency was measured on such soils.http://dx.doi.org/10.1626/pps.10.232Oryza sativaPaddyPercolationSeepageWater table |
| spellingShingle | Mitsuru Tsubo Shu Fukai Jayampathi Basnayake To Phuc Tuong Bas Bouman Dome Harnpichitvitaya Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand Plant Production Science Oryza sativa Paddy Percolation Seepage Water table |
| title | Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand |
| title_full | Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand |
| title_fullStr | Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand |
| title_full_unstemmed | Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand |
| title_short | Effects of Soil Clay Content on Water Balance and Productivity in Rainfed Lowland Rice Ecosystem in Northeast Thailand |
| title_sort | effects of soil clay content on water balance and productivity in rainfed lowland rice ecosystem in northeast thailand |
| topic | Oryza sativa Paddy Percolation Seepage Water table |
| url | http://dx.doi.org/10.1626/pps.10.232 |
| work_keys_str_mv | AT mitsurutsubo effectsofsoilclaycontentonwaterbalanceandproductivityinrainfedlowlandriceecosysteminnortheastthailand AT shufukai effectsofsoilclaycontentonwaterbalanceandproductivityinrainfedlowlandriceecosysteminnortheastthailand AT jayampathibasnayake effectsofsoilclaycontentonwaterbalanceandproductivityinrainfedlowlandriceecosysteminnortheastthailand AT tophuctuong effectsofsoilclaycontentonwaterbalanceandproductivityinrainfedlowlandriceecosysteminnortheastthailand AT basbouman effectsofsoilclaycontentonwaterbalanceandproductivityinrainfedlowlandriceecosysteminnortheastthailand AT domeharnpichitvitaya effectsofsoilclaycontentonwaterbalanceandproductivityinrainfedlowlandriceecosysteminnortheastthailand |