Seasonal consumptive use of water by bell and Cubanelle peppers in semiarid and humid coastal sites in Puerto Rico

Abstract

Consumptive use (CU) values were estimated for transplanted bell and Cubanelle peppers having a 120-day growing cycle with 24 planting dates and 2 locations (Fortuna Substation, Juana Díaz and Isabela Substation, Isabela). Modified Blaney-Criddle model was used to estimate monthly consumptive use (CU) with temperature and rainfall data. CU at Fortuna was greater than CU at Isabela in all planting: schedules. CU varied from 401 to 524 mm at Fortuna and 365 to 484 mm at Isabela. An example is presented to estimate seasonal net irrigation requirements (NIR) with CU.