Evapotranspiration and crop coefficient of oil palm (Elaeis guineensis Jacq.) on the main nursery in a greenhouse

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Sigalingging, R.^1 ; Sumono^1 ; Rahmansyah, N.^1

Department of Agricultural Engineering, Universitas Sumatera Utara, Kampus USU, Prof. A. Sofyan No. 3, Medan

20155, Indonesia^1

关键词: Bulk density;    Crop coefficient;    Crop water requirements;    Elaeis guineensis;    Oil palm plantations;    Particle densities;    Soil textures;    Water stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012099/pdf
DOI  :  10.1088/1755-1315/122/1/012099

来源: IOP

【 摘 要 】

The estimation of crop water requirement is an important part of oil palm plantation because fruit yield of oil palm can be affected by water stress. Evapotranspiration and crop coefficient of oil palm using Tenera variety at 7-12 months old was determined. Soil texture was sandy loam with 73.8 % sand, 10.8 % silt, 15.77 % clay and 1.41 % organic matter. The results showed that the oil palm getting older decreased significantly in bulk density, particle density and porosity of soil caused the root of oil palm enlarged (19.42 g to 53.37 g). This was indicated by increased the dry root weight. On the other hand, the value of evapotranspiration and crop coefficient increased significantly, that was 1.85 to 2.00 mm/day and 0.8 to 0.87 respectively.