Currently in Italy, poultry manure (PM) is spread to agricultural soils and incorporated pre-sowing according to nitrate directive CEE/91/676 and manure Agronomic Use Plan (D.Lgs. 152/99). The nitrogen (essential element for the development and growth of plants) contained in ureic form comes to mineralization in a few weeks: it is readily available but not usable by plants, unless they are not characterized by a short life cycle. For caged laying hen manure (LHM), carbon and nutrient content are function of diet and manure management system; furthermore carbon and nitrogen are affected also by maturation processes, which often reduce them via CO2 and ammonia volatilization respectively, particularly in the case of wet manure. The project is part of a general project for LHM sanitation through the application of new biological technologies (bio-treatment) (Dall’Ara et al., 2010). The goal of the work is to check the effect on optimize nutrient and organic content by means of a biotreatment which overcomes the management of manure (livestock outputs) as waste by means of sanitation process to obtain quality marketable fertilizer, that improves the soil structure, enhances its fertility and prevents desertification. From a nutrient point of view, the purpose was to minimize nitrogen and carbon losses.
ON-FARM FERTILIZER PRODUCTION OPTIMIZATION
BONOLI, ALESSANDRA;POGLAYEN, GIOVANNI
2010
Abstract
Currently in Italy, poultry manure (PM) is spread to agricultural soils and incorporated pre-sowing according to nitrate directive CEE/91/676 and manure Agronomic Use Plan (D.Lgs. 152/99). The nitrogen (essential element for the development and growth of plants) contained in ureic form comes to mineralization in a few weeks: it is readily available but not usable by plants, unless they are not characterized by a short life cycle. For caged laying hen manure (LHM), carbon and nutrient content are function of diet and manure management system; furthermore carbon and nitrogen are affected also by maturation processes, which often reduce them via CO2 and ammonia volatilization respectively, particularly in the case of wet manure. The project is part of a general project for LHM sanitation through the application of new biological technologies (bio-treatment) (Dall’Ara et al., 2010). The goal of the work is to check the effect on optimize nutrient and organic content by means of a biotreatment which overcomes the management of manure (livestock outputs) as waste by means of sanitation process to obtain quality marketable fertilizer, that improves the soil structure, enhances its fertility and prevents desertification. From a nutrient point of view, the purpose was to minimize nitrogen and carbon losses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
