Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh
The study was conducted to estimate the trend of actual crop water requirement and supplemental irrigation needed for a popular high yielding aman rice variety, i.e., BR11 grown in Rajshahi and Rangpur districts of northern Bangladesh. The FAO Penman-Monteith method was used to estimate the referenc...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Farm to Fork Foundation
2019-09-01
|
| Series: | Fundamental and Applied Agriculture |
| Subjects: | |
| Online Access: | http://www.ejmanager.com/fulltextpdf.php?mno=34264 |
| _version_ | 1828374317552893952 |
|---|---|
| author | Rintu Sen Nazmun Nahar Karim Md. Touhidul Islam Mohammed Mizanur Rahman A. K. M. Adham |
| author_facet | Rintu Sen Nazmun Nahar Karim Md. Touhidul Islam Mohammed Mizanur Rahman A. K. M. Adham |
| author_sort | Rintu Sen |
| collection | DOAJ |
| description | The study was conducted to estimate the trend of actual crop water requirement and supplemental irrigation needed for a popular high yielding aman rice variety, i.e., BR11 grown in Rajshahi and Rangpur districts of northern Bangladesh. The FAO Penman-Monteith method was used to estimate the reference crop evapotranspiration (ET0) at four different growth stages of rice. The actual evapotranspiration (ETc) of BR11 rice variety at different growth stages was estimated, and its trend along with that of rainfall was analyzed. The Weibulls method was employed for performing probability analysis, and the dependable rainfall and ETc at 75% probability level was determined for two different transplanting times and four different growth stages of BR11 for 20 years. It was observed that the rainfall and ETc for the two different transplanting times of BR11 rice varied over the whole growing season in both the districts. After performing the analysis of probability, the supplemental irrigation (SI) was computed for BR11 in both the districts. The study revealed that the SI was required in late-stage for Rajshahi district but, for Rangpur district, it was required in both mid and late stages. The results would be helpful for decision makers as well as for farmers to use water efficiently by understanding the need for ETc and SI for BR11 aman rice cultivation in Bangladesh. [Fundam Appl Agric 2019; 4(3.000): 873-880] |
| first_indexed | 2024-04-14T07:30:57Z |
| format | Article |
| id | doaj.art-35f21fd6b18a4938bc9a317a211797d4 |
| institution | Directory Open Access Journal |
| issn | 2518-2021 |
| language | English |
| last_indexed | 2024-04-14T07:30:57Z |
| publishDate | 2019-09-01 |
| publisher | Farm to Fork Foundation |
| record_format | Article |
| series | Fundamental and Applied Agriculture |
| spelling | doaj.art-35f21fd6b18a4938bc9a317a211797d42022-12-22T02:05:51ZengFarm to Fork FoundationFundamental and Applied Agriculture2518-20212019-09-014387388010.5455/faa.3426434264Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of BangladeshRintu Sen0Nazmun Nahar Karim1Md. Touhidul Islam2Mohammed Mizanur Rahman3A. K. M. Adham4Department of Agricultural and Industrial Engineering, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, BangladeshBangladesh Agricultural Research Council BARC , Farmgate, Dhaka, BangladeshDepartment of Irrigation and Water Management, Bangladesh Agricultural University, Mymensingh 2202, BangladeshDepartment of Irrigation and Water Management, Bangladesh Agricultural University, Mymensingh 2202, BangladeshDepartment of Irrigation and Water Management, Bangladesh Agricultural University, Mymensingh 2202, BangladeshThe study was conducted to estimate the trend of actual crop water requirement and supplemental irrigation needed for a popular high yielding aman rice variety, i.e., BR11 grown in Rajshahi and Rangpur districts of northern Bangladesh. The FAO Penman-Monteith method was used to estimate the reference crop evapotranspiration (ET0) at four different growth stages of rice. The actual evapotranspiration (ETc) of BR11 rice variety at different growth stages was estimated, and its trend along with that of rainfall was analyzed. The Weibulls method was employed for performing probability analysis, and the dependable rainfall and ETc at 75% probability level was determined for two different transplanting times and four different growth stages of BR11 for 20 years. It was observed that the rainfall and ETc for the two different transplanting times of BR11 rice varied over the whole growing season in both the districts. After performing the analysis of probability, the supplemental irrigation (SI) was computed for BR11 in both the districts. The study revealed that the SI was required in late-stage for Rajshahi district but, for Rangpur district, it was required in both mid and late stages. The results would be helpful for decision makers as well as for farmers to use water efficiently by understanding the need for ETc and SI for BR11 aman rice cultivation in Bangladesh. [Fundam Appl Agric 2019; 4(3.000): 873-880]http://www.ejmanager.com/fulltextpdf.php?mno=34264Actual evapotranspirationcrop coefficientrainfallsupplemental irrigationaman rice |
| spellingShingle | Rintu Sen Nazmun Nahar Karim Md. Touhidul Islam Mohammed Mizanur Rahman A. K. M. Adham Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh Fundamental and Applied Agriculture Actual evapotranspiration crop coefficient rainfall supplemental irrigation aman rice |
| title | Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh |
| title_full | Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh |
| title_fullStr | Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh |
| title_full_unstemmed | Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh |
| title_short | Estimation of actual crop evapotranspiration and supplemental irrigation for Aman rice cultivation in the northern part of Bangladesh |
| title_sort | estimation of actual crop evapotranspiration and supplemental irrigation for aman rice cultivation in the northern part of bangladesh |
| topic | Actual evapotranspiration crop coefficient rainfall supplemental irrigation aman rice |
| url | http://www.ejmanager.com/fulltextpdf.php?mno=34264 |
| work_keys_str_mv | AT rintusen estimationofactualcropevapotranspirationandsupplementalirrigationforamanricecultivationinthenorthernpartofbangladesh AT nazmunnaharkarim estimationofactualcropevapotranspirationandsupplementalirrigationforamanricecultivationinthenorthernpartofbangladesh AT mdtouhidulislam estimationofactualcropevapotranspirationandsupplementalirrigationforamanricecultivationinthenorthernpartofbangladesh AT mohammedmizanurrahman estimationofactualcropevapotranspirationandsupplementalirrigationforamanricecultivationinthenorthernpartofbangladesh AT akmadham estimationofactualcropevapotranspirationandsupplementalirrigationforamanricecultivationinthenorthernpartofbangladesh |