in this paper, a boussinesq equation is solved by using the adomian's decomposition method, modified adomian's decomposition method and homotopy analysis method. the approximate solution of this equation is calculated in the form of series which its components are computed by applying a recursive relation. the existence and uniqueness of the solution and the convergence of the propose...

Crop models are important for understanding and regulating agroecosystems. Although the CERES-Wheat model is an tool winter wheat research, it has some limitations under water stress conditions. To narrow gap, this study aimed to improve performance of in arid semi-arid regions based on experimental data from 2012 2014. The Priestley–Taylor (PT) FAO56 Penman–Monteith (PM) equations were used ca...

Pengelolaan dalam sistem irigasi sangat penting memenuhi kebutuhan air irigasi. Dengan hal tersebut,peneliti bertujuan untuk menganalisis sehingga dapat diketahui nilai evapotranspirasi pada daerah tanrutedong kabupaten sidrap. Dilakukan dengan pengumpulan data klimatologi yang berupa suhu,kecepatan angin,kelembaban,penyinaran matahari dan penguapan. Metode analisis dilakukan beberapa metode pe...