Hệ số cây trồng Kc của cây hồ tiêu giai đoạn kinh doanh vùng Tây Nguyên

Abstract

Applying the experimental method in the field to determine the crop evapotranspiration (ETc), combined with the CROPWAT software to determine the reference crop evapotranspiration (ETo), the crop coefficient (Kc) of the black pepper plants in the Central Highlands business stage has been identified. According to different stages of growth, Kc is different. Especially, the stage of flower bud differentiation is from 0,8 to 1,02; flowering and fruiting stage is from 1,1 to 1,3; the fruit ripening stage and harvest period is from 0,83 to 0,93. With crop coefficient, calculation the water requirements of develop stages  will be extremely determined. From there, we can set up an effective irrigation plan for black pepper plants, which helps to manage irrigation better.