NUTRIENT VALUE OF ANIMAL MANURES IN FRONT OF ENVIRONMENTAL HAZARDS

摘要: The increment of the industrial farms in Southeast Spain represents an opportunity to reuse animal manures arid and semiarid soils, as a source nutrients organic matter. However, there are diverse components their composition potentially dangerous for environment from different management activities farms, especially heavy metals salinity. In this experiment, 48 types horse, cow, calf, pig, sheep, goat, rabbit, fowl, chicken, ostrich, turkey earthworm were evaluated on total nutrient content, specially N P. We also monitored salt content presence Cd, Hg, Pb, Cr Ni main environmental hazards agricultural soils. tested nitric acid digestion rapid sample preparation using electro thermal energy (microwave), with very good efficiency metal recovery.