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Determination of actual evapotranspiration for summer clusterbean (Cyamopsis tetragonoloba) using mini-lysimeters in hot arid zone of India.
- Source :
-
Legume Research: An International Journal . Mar2021, Vol. 44 Issue 3, p302-307. 6p. - Publication Year :
- 2021
-
Abstract
- A field experiment was conducted for three consecutive years 2015-17 during the summer season at the experiment farm of ICARCentral Arid Zone Research Institute, Jodhpur to determine the actual evapotranspiration of clusterbean [Cyamopsis tetragonoloba (L.) Taub.] using mini-lysimeter by imposing different levels of irrigation based on cumulative pan evaporation (CPE) 50 mm irrigation at 100, 80, 60 and 40% of CPE. Three year averaged actual crop ET was observed 686, 554, 454 and 340 mm under 100, 80, 60 and 40 % irrigation levels, respectively. The highest crop ET was recorded under 100% followed by 80, 60 and 40% irrigation levels. However, maximum water productivity (0.35 kg m-3) at 80% irrigation level, while the lowest (0.21 kg m-3) was observed at 40% irrigation level. The results also indicated that to achieve maximum water productivity, crop ET would need to be at least 554 mm and the crop can save 19.2% (132 mm) of water with a compromise in yield reduction by 10.4% (225 kg). [ABSTRACT FROM AUTHOR]
- Subjects :
- *GUAR
*ARID regions
*DRY farming
*SUMMER
*IRRIGATION
Subjects
Details
- Language :
- English
- ISSN :
- 02505371
- Volume :
- 44
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Legume Research: An International Journal
- Publication Type :
- Academic Journal
- Accession number :
- 149539867
- Full Text :
- https://doi.org/10.18805/LR-4095