GROWTH OF Brachiaria decumbens Stapf AND Cynodon nlemfuensis Vanderyst IN ACID SULPHATE SOILS OF CORDOBA
Journal Title: Revista MVZ Cordoba - Year 2008, Vol 13, Issue 2
Abstract
Objective. To assess the effect of different doses of lime in acid sulphate soils and physiological responses of two species of grasses, Cynodon nlemfuensis Vanderyst and Brachiaria decumbens Stapf. Materials and methods. The work was carried out during 2006 in acid sulfate soils at El Deseo farm (Ciénaga de Oro - Córdoba, Colombia), where 3,6 and 9 tons/ha of agricultural lime was applied and two grass species, Cynodon nlemfuensis Vanderyst (pasto estrella) and Brachiaria decumbens Stapf (pasto brachiaria) were planted. The responses considered during 5 mowings were the chemical features of the soil, fresh and dry weight of each genotype and the leaf/stem ratio. An experiment of complete random blocks was designed using a structure of divided plots, where the main plots corresponded to the grasses and the subplots to the lime doses. Results. The most outstanding results suggested that the pH values and aluminum in the soil concentrations fall significantly with the quantity of applied lime, decreasing up to 80%. In general, the interchangeable bases increased with the lime dosage and the contents of the microelements decreased considerably over time, although this was not evident for the lime. Independently of genotype, the production of fresh biomass showed a linear relationship within lime dosage (y=0,656x + 11,99; R2=0.92); the dry mass and the leaf/stem ratio were always greater for B. decumbens compared to C. nlemfuensis, independent of lime dosage.
Authors and Affiliations
Enrique Combatt C, M. Sc *| Universidad de Córdoba, Facultad de Ciencias Agrícolas.Correspondencia: ecombatt@sinu.unicordoba.edu.co, Alfredo Jarma O, M. Sc| Universidad de Córdoba, Facultad de Ciencias Agrícolas., Libardo Maza A. M. Sc| Universidad de Córdoba, Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Pecuarias
Keywords
Related Articles
- EP ID EP3107
- DOI -
- Views 471
- Downloads 23
Nutraceutical effect of Anacardium occidentale in diets of replacement laying pullets
Objective. To assess the nutraceutical effect of powder from leaves and shoots of Anacardium occidentale (AO) in the diets of replacement laying pullets. Materials and methods. 240 day-old White Leghorn chicks (L-33),...
Effects of gallium arsenide laser irradiation overdose on the quadriceps of rats
Objective. To obtain information on the effects of laser irradiation in order to determine maximum free of deleterious effects dose on muscle tissue. Materials and methods. Twenty male Sprague Dawley rats were studied ra...
ECONOMIC VALUATION OF SCIENTIFIC PRODUCTION IN HEALTH IN COLOMBIA. 2000 - 2005
Objective. To economically estimate health Research in Colombia, partially financed by Colciencias starting from the administration of the Fund for Research in Health (FRH) 2001 - 2005. Materials and methods. An economic...
Determination of virulence factors in strains of Aeromonas spp., isolated from fish
Objective. The aim of this study was to determine the incidence of five phenotypic virulence markers in isolated strains of Aeromonas in fish being sold in Pamplona, Colombia. Materials and methods. A total of 47 strains...
Lymph nodes extramedullary plasmacytoma in a dog
Extramedullary plasmacytoma is a tumor mass composed of plasma cells distant from the bone marrow, classified as skin tumor and is not often present in dogs. The veterinary center ZOOGAR received a canine patient, male,...