Performance of Soybean Culture In Function of Organic Fertilization With Poultry Bed Compared To Chemical Fertilization

Abstract

A R T I C L E I N F O A B S T R A C TThe breeding and production of birds generate income and diversity of production in many rural properties, and has been increasing its share in the country's economy. However, the production process generates a large amount of waste, which in turn is characterized as an organic fertilizer with a high content of mineral nutrients, and that when well-managed, can be used as fertilizer crops. Soybean, considered the most important crop in the country, by production and for being a commodity, has the highest cost of production, fertilization, which is increased each year and decreasing the profit range of producers. The objective of this work was to evaluate the productive performance with the use of poultry bed in soybean as an alternative to chemical fertilization. The cultivar used was the BMX Vanguarda IPRO (IPRO 6160RSF) under the application of different doses of poultry bed previously moistened and covered by tarpaulin, previously composted in the field until the date of planting. The treatments consisted of: T1: Witness (free of fertilization); T2: Poultry bed in the concentration of 3.5 t ha-1 (CA 3,5 t); T3: Poultry bed in the concentration of 7.0 t ha-1 (CA 7.0 t); T4: Poultry bed in the concentration of 10,5 t ha-1 (CA 10,5 t); T5: Chemical fertilization (AQ) with NPK in formulation 02-18-18, applying 444.2 kg ha-1. The best result was obtained with the use of the CA 10.5 t ha-1 treatment, with a higher mass of nodules, higher plant height and higher productivity. It was concluded that the poultry bed at the dose of 10.5 t ha-1 can replace the chemical fertilizer in the soybean crop in the productivity question, as well as for the other agronomic characteristics, as early as the first year of cultivation.