Evapotranspiration, irrigation water requirement, and water productivity of rice (Oryza sativa L.) in the Sahelian environment

2016 ◽  
Vol 15 (3) ◽  
pp. 469-482 ◽  
Author(s):  
Koffi Djaman ◽  
Valere C. Mel ◽  
Alpha B. Balde ◽  
Boubie V. Bado ◽  
Baboucarr Manneh ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Irrigation Water ◽  
Oryza Sativa L ◽  
Water Productivity ◽  
Water Requirement ◽  
Irrigation Water Requirement

scholarly journals Trade-off with different establishment methods in terms of irrigation water requirement and weed pressure of rice (Oryza sativa L.)

2020 ◽  
Vol 8 (5) ◽  
pp. 1060-1068
Author(s):  
Santhosh UN ◽  
Desai BK ◽  
Satyanarayana Rao ◽  
Masthana Reddy BG ◽  
Vinay Krishnamurthy ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Irrigation Water ◽  
Oryza Sativa L ◽  
Water Requirement ◽  
Irrigation Water Requirement ◽  
Trade Off

scholarly journals Innovative Land Arrangement in Combination with Irrigation Methods Improves the Crop and Water Productivity of Rice (Oryza sativa L.) Grown with Okra (Abelmoschus esculentus L.) under Raised and Sunken Bed Systems

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2087
Author(s):  
Pijush Das ◽  
Biswajit Pramanick ◽  
Subhendu Bikash Goswami ◽  
Sagar Maitra ◽  
Sobhy M. Ibrahim ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Irrigation Water ◽  
Oryza Sativa L ◽  
Irrigation System ◽  
Water Productivity ◽  
Underground Water ◽  
Field Investigation ◽  
Abelmoschus Esculentus ◽  
L System ◽  
Raised Bed

The underground water and water storage reservoirs are rapidly depleting due to nominal recharging by the rainfalls making water a scarce resource for irrigation resulting in poor crop growth and production. Irrigation water application should focus on the proficient use of each drop of water. Water productivity (WP) in agriculture can be improved through crop diversification, proper land and water management techniques. Considering this, a field investigation was carried out during 2013–2014 and 2014–2015 to study the crop response of rice (Oryza sativa L.) + okra (Abelmoschus esculentus L.) system to land configurations and irrigation regimes. Three raised-sunken beds (RSB) having width (m) ratios of 1:3, 2:3, 3:3 and two irrigation schedules viz. continuous standing water (CSW) of 5 ± 2 cm depth and alternate wetting and drying (AWD) at 3 ± 1 days interval for rice in sunken bed were tested. Rice yield was more (4.36 and 4.89 Mg ha−1) under CSW irrigation than AWD irrespective of raised bed width. The highest okra yield was noted by 14.09 and 15.43 Mg ha−1 with AWD in 1:3 RSB systems, whereas the lowest yield was recorded in CSW 1:3 RSB systems. Rice equivalent yield (REY) was found as the maximum in AWD than CSW irrespective of raised and sunken bed configurations. The AWD in 3:3 RSB systems exhibited the highest WP of 1.02 and 1.01 kg m−3 during the first and second year of study, respectively. Wider RSB system of land configuration ratio of 3:3 saved about 40–45% of irrigation water. Such information will help in the planning of an innovative intercropping system of summer rice + okra in the field by changing the land configuration to the raised bed and sunken bed with the AWD irrigation system.

scholarly journals ESTIMASI KEBUTUHAN AIR IRIGASI PADI (Oryza sativa L.) DI DESA KOTO PERAMBAHAN KECAMATAN KAMPAR TIMUR BERDASARKAN MODEL SOFTWARE CROPWAT 8.0

2020 ◽  
Vol 11 (1) ◽  
pp. 17
Author(s):  
DEWI SAGITA ◽  
OKSANA OKSANA ◽  
TIARA SEPTIROSYA
Keyword(s):  
Irrigation Water ◽  
Quantitative Research ◽  
Oryza Sativa L ◽  
Weather Condition ◽  
Plant Morphology ◽  
Water Requirement ◽  
Climatic Data ◽  
Irrigation Water Requirement ◽  
Sunshine Hours ◽  
Planting Season

Water availability is one of important factor to assure that a field could support increassing rice production value. These descriptive quantitative research aimed to get schedule and amount for irrigation water requirement based on climatic data, soil and crop. Data collected for these research were temperature, humidity, sunshine hours, wind speed, rainfall, plant morphology, altitude and latitude. The research was conducted on July until August 2019. Soil samples was carried out from field area in Koto Perambahan village, East Kampar sub district using purposive sampling method. Data was processed by Cropwat 8.0 software to get amount water requirement for replace the water losss caused of evapotranspiration. Based on weather condition, the field is suitable to plant rice in two season. Irrigation water requirement was writed in decade form, it means for ten days. First planting season occurred on March and irrigation water requirement was 180,6 mm/dec. Second planting season should be done on October with irrigation water requirement was 167,2 mm/dec. The highest irrigation water requirement was estimated on nursery stage, exactly in formation of rice tillers with approximately values 98 mm/dec.

scholarly journals Crop Evapotranspiration, Irrigation Water Requirement and Water Productivity of Maize from Meteorological Data under Semiarid Climate

Water ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 405 ◽  
Author(s):  
Koffi Djaman ◽  
Michael O’Neill ◽  
Curtis Owen ◽  
Daniel Smeal ◽  
Komlan Koudahe ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Meteorological Data ◽  
Water Productivity ◽  
Water Requirement ◽  
Crop Evapotranspiration ◽  
Irrigation Water Requirement ◽  
Semiarid Climate

scholarly journals Transfer of Arsenic from Groundwater and Paddy Soil to Rice (Oryza sativa L.) Grain: A Micro Level Study in Chandina, Comilla

2015 ◽  
Vol 12 (2) ◽  
pp. 74-82 ◽  
Author(s):  
Md. Habibur Rahman ◽  
Md. Mohashin Farazi ◽  
Kohinoor Begum ◽  
Md. Serazul Islam
Keyword(s):  
Oryza Sativa ◽  
Irrigation Water ◽  
Agricultural Soil ◽  
Oryza Sativa L ◽  
Arsenic Concentration ◽  
Dry Weight ◽  
Permissible Limit ◽  
Arsenic Content ◽  
Soil Arsenic ◽  
Micro Level

Rice (Oryza sativa L.) is one of the major food crops in many countries. As the cultivation of rice requires huge volume of water, long term use of Arsenic contaminated groundwater for irrigation may result in the increase of arsenic concentration in the agricultural soil and eventually accumulation in rice grains. A micro level study was conducted to investigate the transfer of arsenic from irrigation water and soil to rice plants in the arsenic affected 8 unions of Chandina upazilla, Comilla district. The level of arsenic in irrigation water (0.12±0.08 and 0.67±0.07 mg l-1) was much above the WHO permissible limit of 0.01 mg l-1 for drinking water and FAO permissible limit of 0.10 mg l-1 for irrigation water. The total soil arsenic concentrations ranged from 3.21±0.80 to 8.74±2.83 mg kg-1 dry weight of soil, which was below the maximum acceptable limit for agricultural soil of 20.0 mg kg-1 as recommended by the European Community. The accumulation of arsenic in the grain ranged from 0.12±0.04 to 0.58±0.06 mg kg-1 in Boro and 0.16±0.04 to 1.06±0.20 mg kg-1 in T. Aman. Except grain sample (T. Aman) of one union, the grains in both Boro and T. Aman of all unions did not exceed 1.0 mg kg-1 dry weight of arsenic (the permissible limit of arsenic in rice according to WHO recommendation). Thus, till now rice has remained harmless for consumption in the study area. The results clearly showed that the arsenic content in the grains of Boro rice is correlated to the intensity of arsenic contamination of irrigation water and soil. The Agriculturists 2014; 12(2) 74-82

scholarly journals Assessment of Water Pumping System Powered By Solar Pump in Dry Areas

2019 ◽  
Vol 8 (4) ◽  
pp. 2859-2866
Keyword(s):  
Irrigation Water ◽  
Water Requirement ◽  
Accurate Estimation ◽  
Irrigation Water Requirement ◽  
Irrigation Planning ◽  
Power Requirement ◽  
Promising Alternative ◽  
Point Tracking ◽  
Water Pumping ◽  
Dry Areas

The rapid increase of desertification’s degradation is one of the worst environmental and economic threats for dry areas. Climate changes, very year impacts thousands of areas across the globe. The high cost of electricity and diesel-based fuel affects photovoltaic water pumping requirements for irrigation in many parts of the world. Solar irradiance in every dry place is extremely high due the drought increase. Thus, using solar energy for water pumping is a promising alternative sources of energy. Undertaking irrigation for a particular place and crop requires not only skills in the irrigation planning but also in the power requirement of the entire system. A reliable and accurate estimation of ET rate and irrigation water requirement (IWR) are soundly important in irrigation field. This sought to accurately estimate the irrigation power requirement by using PVsyst software on nine different pumps technologies combinations with different type of converters at 100m, 150m, 180m, and 200m of Total dynamic Head (TDH). The study has been conducted in four sections, the first section dealt with the assessment of the collected data, the second section with the simulations, the third one with the irrigation water requirement and finally irrigation water requirement. The results found in study show that IPR of a crop is majorly depend on the TDH. Among the nine combinations, results show that the Maximum Power Point Tracking (MPPT) technology is the best in terms of power requirement of selected the crop. Furthermore, the maximum and minimum values of the irrigation water requirement for millet crop was found to be 12.9 mm/day and 4.9mm/day respectively.

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