Efeito de biofertilizantes na germinação e crescimento de plântulas do feijão (Phaseolus vulgaris)

Abstract

Beans are an important source of protein and iron in the human diet. Studies that seek low-cost and easy-to-apply strategies to improve the establishment of plants and consequently the productivity of bean crops are of great value to the production chain. Thus, the use of biofertilizers has great potential, because they can stimulate plant growth through greater cell division, increasing the capacity to absorb mineral nutrients, essential for crop productivity. Also, when used in seed treatment, the use of biofertilizers can influence root growth, and the percentage and speed of germination. Therefore, this research aimed to evaluate the germination of black bean seeds under the application of different biofertilizers, sterilized and non-sterilized, in different concentrations. The experiment was conducted in a randomized experimental design, with nine treatments (20 and 50 mL L-1 of Supermagro biofertilizer, 20 and 50 mL L-1 of sterilized Supermagro biofertilizer, 20 and 50 mL L-1 of efficient microorganisms biofertilizer, 20 and 50 mL L-1 of sterilized efficient microorganisms biofertilizer and a control of 00 mL L-1) and four repetitions with 50 seeds each. The evaluations were performed on the ninth (9th) day. The seeds used were purchased from a local producer, Phaseolus vulgaris species, Fepagro Triunfo cultivar. For all the variables analyzed, the efficient microorganism biofertilizer showed superior results. In relation to the dose of biofertilizer and the sterilization of the same, no significant difference was observed.