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

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.

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Effects of Irrigation Water Salinity and Water Depth On Growth and Yield Parameters of NERICA Rice (Oryza sativa L. × Oryza glaberrima L.)

Gesunde Pflanzen ◽

10.1007/s10343-021-00607-w ◽

2022 ◽

Author(s):

Alieu Saidy ◽

Hakan Arslan

Keyword(s):

Oryza Sativa ◽

Water Depth ◽

Irrigation Water ◽

Oryza Sativa L ◽

Growth And Yield ◽

Water Salinity ◽

Oryza Glaberrima ◽

Yield Parameters ◽

Irrigation Water Salinity

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Simulating the effects of climatic fluctuations on rice irrigation water requirement using AquaCrop

Agricultural Water Management ◽

10.1016/j.agwat.2018.10.003 ◽

2019 ◽

Vol 213 ◽

pp. 97-106 ◽

Cited By ~ 5

Author(s):

Nader Pirmoradian ◽

Naser Davatgar

Keyword(s):

Irrigation Water ◽

Water Requirement ◽

Irrigation Water Requirement ◽

Climatic Fluctuations ◽

Rice Irrigation

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

The Agriculturists ◽

10.3329/agric.v12i2.21734 ◽

2015 ◽

Vol 12 (2) ◽

pp. 74-82 ◽

Cited By ~ 1

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

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

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.d6950.118419 ◽

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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