PRODUTIVIDADE DA CULTURA DO AMENDOIM SOB DIFERENTES SUPRESSÕES DA IRRIGAÇÃO COM ÁGUA SALINA
DOI:
https://doi.org/10.15809/irriga.2021v26n2p210-220Abstract
The water deficit associated with salt stress affects the productivity of agricultural crops. The objective was to evaluate the productivity of peanut culture irrigated with low and high salinity water submitted to different suppression intervals. The experiment was conducted in field conditions, from August to October 2019 at the Experimental Farm of Piroás, Redenção-CE. The experimental design used for the randomized blocks in a factorial arrangement, with the first factor being the salinity of the irrigation water (1.0 and 4.0 dS m-¹) and the second factor, four suppression intervals (IS1 = 40 a 55 DAS; IS2 = 55 to 70 DAS; IS3 = 70 to 85 DAS and IS4 = without suppression intervals), with four repetitions. The following variables were evaluated: number, mass, pod length and diameter and yield. Treatment without water suppression interval associated with less saline water provides a greater number and diameter of pod. Higher salinity water affects pod mass and length. The use of water of greater or lesser salinity without interval of suppression of irrigation offers the highest yield of the peanut culture.
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