Abstract

TEJEDA-MARRERO, Víctor Manuel et al. Water Consumptions and Crop Coefficients in Avocado Young Tress cv Govin. Rev Cie Téc Agr [online]. 2022, vol.31, n.4  Epub Nov 01, 2022. ISSN 2071-0054.

A potential increase in the areas planted with avocado in Cuba will demand an increase in the areas under irrigation for this crop, which will require the most precise knowledge of their irrigation demands. In response to the above, the present work was carry out in a young plantation of avocado cv Govin planted with a 6 x 6 m frame in Red Ferralitic soil in the municipality of Alquizar, Artemisa Province, Cuba and irrigated through porous pipes. Water consumption was calculated using the simplified water balance equation and soil moisture variation was monitored with tensiometers placed at depths from 15 to 90 cm whose readings were converted to soil moisture using the calibration equations determined in situ. The ETo was determined using the Penman-Monteith equation. The total ETc in the period February/2020-May/2021, was 965.4 mm when the plants reached an average height of 126 cm vs. 20 cm at the planting date. Average daily values ​​of decennial consumption were 2.72, 2.26 and 2.01 for the periods of February-April 2020, May to October 2020 and January-April 2021, with Kc values ​​of 0.47 and 0.48 for the rainy and dry seasons, respectively. These coefficients can be used in determining the demand for water for avocado plantations in development. Given the scarcity of information on the irrigation demand and its effect on the production of this crop, it is necessary to continue research that includes plantations in production and other cultivars.

Keywords : Water Requirements; Crop Growth; Water Consumption.

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