Irrigation with saline water in soil with bovine biofertilizer on the growth in the yellow passion fruit

Abstract

The plants respond differently to the effects of salts in the distinct phases of their cycle, some grow and produce properly with economic viability in soils with high salinity, others, such as passion fruit development are compromised by the action of saline soil and irrigation water. The objective of this study was to evaluate the effects of increasing levels of salinity of irrigation water in soil treated with different frequencies of application of bovine biofertilizers on vegetative growth veal yellow passion fruit. The experiment was randomized block with treatments distributed in a 5 x 4 factorial design corresponding to levels of electrical conductivity of the irrigation water of 0.5; 1.5; 2.5; 3.5 and 4.5 dS m-1 and four frequencies of the application of bovine biofertilizer: absence of biofertilizer (SB); application of bovine biofertilizer one week before transplanting (1SAT); application every 90 days after transplanting (90DAT); and, applied one week before and every 90 days after transplanting (1SAT+90DAT). The electrical conductivity of irrigation water reducing the growth of passion fruit, delaying the timing of flowering of culture. The biofertilizer 1SAT and 1SAT+90DAT, the largest number of applications stimulated the growth of yellow passion fruit plants mitigating the effects of saline irrigation water.