Crop productivity and soil quality after fertilization with liquid swine manure

An unresolved question about the use of animal waste in agriculture is its effect on the physical and chemical attributes of soil, especially in commercial grain producing areas that have adopted direct seeding system (DSS). Aiming at contributing to the clarification of this question, we conducted a study in the mid-north region of the Mato Grosso state, Brazil, in a soybean and maize commercial area consolidated in DSS. Different doses of liquid swine manure (LSM) were applied and compared with NPK mineral fertilization. The aim of this study was to evaluate the physical and chemical quality of the soil and the productive potential of the soybean and maize crops under LSM doses and NPK fertilizer. Results indicated an increase in levels of K, P, Zn and Cu exchangeable with LSM fertilization of 80 m3.ha-1. Fertilizers with mineral NPK and LSM at 80 and 60 m3.ha-1, respectively, show soil porosity improvements and decreased soil penetration resistance. Moreover, the use of LSM also provided the highest increases in soybean and maize grain yield.

• Autores: Tavanti, Renan Francisco Rimoldi; Freddi, Onã Da Silva; Lorenzon, Kayane; Dos Santos, Igor De Morais; Tavanti, Tauan Rimoldi; Costa, Letícia Carolina; Breda, Carlos Cesar
• Tipo de recurso: Article of journal
• Fecha de publicación: 2018
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/68104
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/68104; http://bdigital.unal.edu.co/69137/
• Palabra clave: 55 Ciencias de la tierra / Earth sciences and geology; 63 Agricultura y tecnologías relacionadas / Agriculture; Glycine max L.; Zea mays L.; fertilizers; soil physics; soil fertility; direct sowing system; Glycine max L.; Zea mays L.; fertilizantes; física del suelo; fertilidad del suelo; sistema de siembra directa; Glycine max L.; Zea mays L.; fertilizantes; física do solo; fertilidade do solo; sistema de semeadura direta
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional