Crop coefficient and water requirement for oil palm (Elaeis guineensis Jacq.) on the nursery based on radiation evaporation method

International Conference on Agriculture, Environment, and Food Security 2018

农业科学;生态环境科学

Ichwan, N.^1 ; Fajra, A.M.^1 ; Marbun, S.M.^1 ; Sumono^1

Department of Agricultural Engineering, Faculty of Agriculture, Universitas Sumatera, Utara, Medan, Sumatera Utara, Indonesia^1

关键词: Crop coefficient;    Crop evapotranspiration;    Elaeis guineensis;    Evaporation method;    Net radiation;    Oil palm;    Rainy seasons;    Water requirements;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/260/1/012041/pdf
DOI  :  10.1088/1755-1315/260/1/012041

来源: IOP

【 摘 要 】

Water requirements of oil palm close to crop evapotranspiration (ETc). The objectives of this research were to known the value of crop coefficient for the age of oil palm 4, 5 and 6 month and predicted water requirements of oil palm based on net radiation evaporation method. The result showed the value of oil palm for 4, 5, and 6 months were 0.50, 0.52, and 0.54. The value of reference evaporation (net radiation, ETo) range 2.89-4.25 mm.day-1. Moreover, from predicted crop evapotranspiration showed that water requirements of oil palm range 1.44-3.70 mm.day-1. Water requirements increasing based on the age of oil palm, however, it will decrease in the rainy season.