CROPWAT model

This study, only the change in yield is assessed rice due to the impact of changes in temperature and precipitation in the context of climate change in the LXQR). By using the CROPWAT model to calculate rice yields with temperature changes and rainfall over periods according to climate change scenarios, the results show that under the RCP4.5 scenario when heat If the degree and rainfall increase, the rice yield decreases by 25.4% on average; RCP8.5 rice yield decreased by 25.3% on average.

9p cothumenhmong11 06-05-2021 18 2   Download

The research shows that the irrigation management model can effectively and efficiently estimate the crop water requirements. The model, that calculates evapotranspiration and crop water requirements, allows the development of recommendations for improved irrigation practices, the planning of irrigation schedules under varying water supply conditions and yields reduction under various conditions.

9p cothumenhmong9 18-01-2021 15 1   Download

Water is the most important component of agriculture production, especially during the dry seasons when all water sources are scarce yet water needs are very high. The Mekong river delta in Vietnam is the largest agricultural and aquacultural region in the country where about half of the Delta’s land area is used for rice and upland crop cultivation.

6p chauchaungayxua8 02-10-2020 19 0   Download

To control the overexploitation of accessible water resources, it has become essential to define proper strategies for planning, development, and management of water resources. Proper modification in traditional irrigation practices helps improve water use efficiency. CROPWAT is an FAO suggested model for proper management of irrigation.

13p caygaocaolon6 30-07-2020 15 2   Download

The available water decreases as world demand for water increases for various purposes such as industrial, agriculture hydropower. To improve the water use efficiency, there is a need to modify traditional irrigation scheduling. In the present study, the CROPWAT model was used to estimation the irrigation scudding for rice and cotton crop to improve water use efficiency. From the analysis, it was found that reference evapotranspiration was almost directly proportional to the radiation and sunshine hours and inversely proportional to the relative humidity.

8p caygaocaolon5 27-05-2020 22 1   Download

The study was conducted in Shipra river basin to determine actual evapotranspiration in the area. Long term daily meteorological data including rainfall, maximum temperature, minimum temperature, relative humidity, wind speed and sunshine hours of Indore IMD station was used as input data in CROPWAT Model 8.0. The potential evapotranspiration was converted into actual evapotranspiration by using the crop coefficient. Reference evapotranspiration is a measure of evaporative demand, while the crop coefficient accounts for crop characteristics and management practices (e.g.

12p angicungduoc4 26-04-2020 13 0   Download

The knowledge of crop water requirement and Irrigation scheduling is an important practical consideration for designing and managing an irrigation system. A field study was conducted to find out the irrigation scheduling of Mustard crop by Climatological method and its comparison with CROPWAT model from rainwater harvested through plastic lined pond during the year 2018-19 at PFDCPET farm of the BAU Ranchi Jharkhand.

8p nguaconbaynhay4 22-03-2020 15 1   Download

Insufficient water supply is one of the most important factor governing agricultural productions. In addition to rainfall, a thorough knowledge of seasonal values of evaporation and crop transpiration, runoff, deep drainage and soil water storage is required to estimate the water need of crop. Water management is crucial to rightly offer and economize on water use in improvement of rice productivity.

7p chauchaungayxua4 18-03-2020 21 0   Download

The global consumption of water is doubling every 20 years, more than twice the rate of human population growth. As per one of the estimate of Food and Agriculture organization (FAO), 70-80 per cent of the increase in food demand between 2000 and 2030 will have to be met by irrigation. Efficient water use can increase crop diversity, produce higher yields, enhance employment and lower food prices.

8p caygaocaolon2 14-03-2020 11 1   Download