Atributos fГsicos de um Latossolo Vermelho distrofГ©rrico em sistema de integraГ§ГЈo lavoura-pecuГЎria. ) and the use of highly productive conservation systems, such as integrated crop-livestock production systems (ICL), which place particular importance on soil fertility ( Tormena et al., 2012 Tormena CA, Betioli Junior E, Peteam LP, Alves SJ. Organic nitrogen in a typic hapludox fertilized with pig slurry. Furthermore, research is needed on reuse of the nutrients available in organic waste ( Grohskopf et al., 2015 Grohskopf MA, Cassol PC, Correa JC, Mafra MSH, Panisson J. Piracicaba: International Plant Nutrition Institute 2010.). Boas prГЎticas para uso eficiente de fertilizantes na cultura do milho. The development of sustainable production technologies aimed at improving nutrient availability in soil-plant systems following fertilizer applications is important in this scenario ( Fancelli, 2010 Fancelli AL. ), which places undo risk on agribusinesses, which account for 27 % of the Gross Domestic Product. Such activity helps explain BrazilвЂ™s position as the worldвЂ™s fourth largest consumer of mineral fertilizers however, 75 % of these products are imported ( ANDA, 2013 AssociaГ§ГЈo Nacional para DifusГЈo de Adubos - ANDA. RelatГіrio Anual da OrganizaГ§ГЈo das NaГ§Гµes Unidas para a AlimentaГ§ГЈo e Agricultura. ) and is responsible for preserving 67 million hectares in Brazil ( FAO, 2013 Food and Agriculture Organization of the United Nations - FAO. The practice of fertilization, when necessary, can result in a yield up to three times greater than when not adopting the practice ( IFDC, 2012 International Fertilizer Development Center - IFDC. Mineral fertilizers organic carbon nitrogen There are similar efficiencies between the treatments pairs (pig slurry/M1 and poultry litter/M2). For two years after implementing the ICL system, the application of the different rates of N using organic (pig slurry and poultry litter) or mineral (M1 and M2) fertilizers increased corn yields and K and P availability in the soil these results were accompanied by small changes in organic C and total N content. increasing application rates of N (100, 200, and 300 kg ha -1 N) and control without fertilizer. The treatments consisted of four types of fertilizer, two organic (poultry litter and pig slurry) and two mineral, balanced with the same amounts of N, P and K as the organic fertilizers, one of which corresponded to the levels in the pig slurry (M1) and the other to the levels in the poultry litter (M2) in combination with three. The experimental design consisted of randomized blocks in a 4 Г— 3 + 1 factorial arrangement with four replicates. The aim of this study was to evaluate soil response, through characterization of organic C and available N, P, and K contents, and corn yield response to increasing amounts of poultry litter, pig slurry, and mineral fertilizers in an integrated crop-livestock production system (ICL) from 2011 to 2013. Organic fertilizers derived from poultry litter and pig slurry are alternatives to mineral fertilizers in increasing soil nutrient availability.

Pig crop