Fertilização orgânica e regimes hídricos em mudas de maracujazeiro amarelo desenvolvidas na região semiárida

Abstract

The objective of this study was to evaluate the effects of doses of biofertilizer with different water regimes on the growth and phytomass of yellow passion fruit seedlings. The experiment was carried out using a material or substrate of the first 20 cm of a Eutrophic Floss Neossol. The design used was completely randomized (DIC), with a 5x2x2 factorial arrangement, referring to the doses of bovine biofertilizer (0; 200; 400; 600 and 800 mL) diluted in ratio of 1:2, S1- substrate levels 70% soil (1400 mL) + 30% bovine manure (600 mL); S2 - 30% soil (600 mL) + 70% bovine manure (1400 mL) and two water levels in the soil (ADS): L1 = 100% of the water available in the substrate (ADS) and L2 = 60% water available on the substrate, with 4 repetitions, totaling 80 experimental units. After sowing at 110 (DAS), the leaf area (AF) was evaluated; Dry shoot phytomass (FSPA); Dry root phytomass (FSR); Total dry phytomass (FST); Root part shoot (RRPA); Root length (CR) and Pearson's correlation. Passion fruit seedlings under water stress conditions inhibit their growth, but with biofertilizer and cattle manure they result in plants with greater vegetative potential.