02479naa a2200277 a 450000100080000000500110000800800410001910000230006024501540008326000090023750001540024652014440040065000320184465000180187665000170189465000200191165300410193165300290197270000190200170000150202070000210203570000190205670000170207570000190209277300900211120926612019-02-25       2018    bl uuuu     u00u1 u    #d1 aFERREIRA, C. J. B.  aSoil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes.h[electronic resource]  c2018  aTítulo em português: Propriedades físicas de solo sob pastagem de capim-tanzânia adubada com nitrogênio mineral ou consorciada com estilosantes.  aThe objective of this work was to evaluate the physical properties of a soil with a 'Tanzânia' grass (Megathyrsus maximus) pasture fertilized with mineral nitrogen or intercropped with the legume 'Campo Grande' (Stylosanthes spp.), and subjected to continuous grazing and variable stocking rate, in a three-year chronosequence. The treatments were: 'Tanzânia' grass and Stylosanthes; and 'Tanzânia' grass fertilized with 75, 150, and 225 kg ha-1 N per year. The experiment was carried out in an Oxisol, in a randomized complete block design with three replicates, in split plots divided according to time (first, second, and third experimental years). The following soil properties were assessed annually: soil bulk density, porosity in the soil macropore domain, soil water and air storage capacity, and soil penetration resistance. After three years, the highest animal stocking rate due to increased forage yield did not affect the soil physical conditions. The intercrop of 'Tanzânia' grass with the legume shows values of soil water and air storage capacity close to the ideal ones (0.66 and 0.34, respectively). After the second experimental year, there is a decrease in the penetration resistance values, which are inferior to the critical limit of 2,500 kPa. The intercropping of 'Tanzânia' grass with stylosanthes 'Campo Grande' can be a remarkable alternative for the maintenance and improvement of soil physical conditions.  aSoil penetration resistance  aStocking rate  aStylosanthes  aPanicum Maximum  aResistência do solo à penetração  aTaxa de lotação animal1 aTORMENA, C. A.1 aCECATO, U.1 aFRANCO, H. H. S.1 aMOREIRA, W. H.1 aGALBEIRO, S.1 aRIBEIRO, O. L.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 53, n. 4, p. 478-486, abr. 2018.