Assessing the productivity of coriander under different irrigation depths and fertilizers applied with continuous and pulsed drip systems
Valentin Ruben Orcon Zamora,
Manassés Mesquita da Silva,
José Amilton Santos Júnior,
Gerônimo Ferreira da Silva,
Dimas Menezes,
Ceres Duarte Guedes Cabral de Almeida
Affiliations
Valentin Ruben Orcon Zamora
Agricultural Engineering Department, Federal Rural University of Pernambuco (UFRPE), St Dom Manuel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil
Manassés Mesquita da Silva
Agricultural Engineering Department, Federal Rural University of Pernambuco (UFRPE), St Dom Manuel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil
José Amilton Santos Júnior
Agricultural Engineering Department, Federal Rural University of Pernambuco (UFRPE), St Dom Manuel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil
Gerônimo Ferreira da Silva
Agricultural Engineering Department, Federal Rural University of Pernambuco (UFRPE), St Dom Manuel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil
Dimas Menezes
Agronomy Department, Federal Rural University of Pernambuco (UFRPE), St Dom Manuel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil
Ceres Duarte Guedes Cabral de Almeida
Dom Agostinho Ikas Agricultural School, Federal Rural University of Pernambuco, Dr Francisco Correia Avenue, 643, São Lourenço da Mata, Pernambuco 54735-000, Brazil
In this study, the authors analyzed the consequences of irrigation management strategies as an essential factor to save water and maintain high crop yields. The present research aimed at comparing coriander (Coriandrum sativum L.), cv. Verdão, yields under fertigation via drip irrigation with a continuous application and in pulses, with 40, 60, 80, 100 and 120% of the crop evapotranspiration (ETc) being recovered. These treatments were distributed in randomized blocks in a 2 × 5 factorial scheme, with three replications, in a greenhouse located at the Federal Rural University of Pernambuco, northeast Brazil (08°01′6.50″ S and 34°56′46″ W, average elevation 6.5 m). The continuous irrigation consisted of the application of water depth in a single daily event, while pulsed irrigation comprised the application of the same irrigation depth split up into five events with a 1-hour interval between pulses. Crop evapotranspiration (ETc) was determined via the water balance by lysimetric drainage. The fertilizers were applied in every watering. The biometric and productivity crop pointed that pulsed irrigation to a mean depth of 58% of the ETc corresponds to the results obtained with the application of the depth equivalent to 100% of the ETc by continuous irrigation, consequently with reduced input costs. HIGHLIGHTS Drip irrigation pulsed saves 40% water compared to continuous irrigation.; Frequency of watering and fertilization determines crop yield.; Pulsed fertigation provides higher fresh and dry mass with deficit irrigation.;
