Influência de doses de nitrogênio na produtividade do capim solteiro e consorciado com feijão guandu

Abstract

In recentyearsnitrogenfertilizationhasbeenadopted as animportant management technique for forage grasses, andtheimportanceofnitrogen (N) for theseplantsisevident. The N favorstheaccumulation in thedrymatter rate, togetherwithgreater vigor andnutritionalvalue, butthe use ofnitrogenfertilizersis a techniqueconsideredof high cost, fromthis, it isimportantto define thelevelofefficiencyofthis. Chemicalfertilizationthroughcommercialfertilizersisthemainwaytoprovide N to forages, butknowingthat N is a nutrientwithcomplexbehavior in thesoil, andbeingalsothemostexportedbyplants, a possiblesolutiontothisisthe use of in ordertoobtainconstant N throughthebiologicalfixationthatoccursbytherelationofsymbiosisbetweenthe legume andthebacteriumofthe genus Rhizobium. Subsequenttothisfixation, this N issuppliedtothe forage, thisprocessfavorsthereductionorexclusionoftheprocessofchemicalnitrogenfertilization, strengtheningthesustainabilityofthe system andalso its profitability, benefitingboththeenvironmentandthe rural producer.