Manejo Da Irrigação Com Água Salina Na Cultura Da Soja Em Solo Com Biofertilizante

Abstract

PALAVRAS-CHAVE: adubo orgânico, estresse salino, Glycine max (L.) MANAGEMENT OF IRRIGATION WITH SALINE WATER IN SOYBEAN CULTURE IN SOIL WITH BIOFERTILIZERABSTRACT: Excess salts affect the growth and productivity of agricultural crops worldwide.The objective of this work was to evaluate the effect of irrigation water salinity on soybean biomass in biofertilizer soil. The experiment was conducted in a greenhouse at the experimental area of the UFC, Fortaleza-CE, from May to June 2016. The treatments were distributed in randomized blocks, in a factorial scheme 5 × 2, referring to water salinity levels: 0.8 dS m -1 ;1.6 dS m -1 ; 2.4 dS m -1 ; 3.2 dS m -1 and 4.0 dS m -1 , in the soil without and with bovine biofertilizer, in five replicates. The following variables were evaluated: dry mass of the aerial part, root and total. The salinity of irrigation water reduced the biomass of soybean plants and 1 Mestrando em engenharia agrícola, UFC-Fortaleza, Ceará, (85) 997494862.