02528nam a2200505 a 450000100080000000500110000800800410001910000210006024501090008126000420019030000100023250000200024252011620026265000230142465000120144765000220145965000180148165000130149965000170151265000110152965000130154065000230155365000240157665000220160065000170162265000140163965300250165365300250167865300170170365300290172065300160174965300320176565300150179765300160181265300200182865300160184865300270186465300150189165300230190665300140192965300180194365300210196165300270198265300130200913207702014-01-15       1976    bl uuuu  m   00u1 u    #d1 aSERRAO, E. A. S.  aThe use of a response surface design in the agronomic evaluation of a grasslegume mixture under grazing.  aFlorida : University of Floridac1976  a232p.  aTese Doutorado.  aA grass-legume pasture composed primarily of coastcross-1 bermudagrass (Cynodon dactylon (L.), Pers.) and greenleaf desmodium (Desmodium intortum (Mill) Urb.) was evaluated in a grazing trial during 182 days in the growing season of 1975 at the beef research unit, University of Florida, Gainesville. The pasture was established in 1974 on a soil of the sparr series associated with the blanton series. The main objectives of the study were (a) to determine the effect of grazing period (X1), rest period (X2), and grazing pressure (X3) upon the pasture mixture, (b) to evaluate a response surface design for the statistical analysis of the experiment, and (c) to evaluate the forage residual dry matter as an estimator of grazing presure. Grazing periods studied were 1,2,5,7,10.5, and 14 days; rest periods were 0,14,28,42 and 56 days; and projected grazing pressures were .5, 1.0, 1.5, 2.0, and 2.5 metric tons/ha of dry matter (DM) leaf after grazing. Modifid mon-rotatable central composite design made up of eight factorial, six axial, one central, and five extra treatments was used to study the response surface of the individual response variables.  adry matter content  aFlorida  agrazing intensity  amixed grazing  apastures  aEstatística  aManejo  aPastagem  aSistema de Pastejo  aTaxa de Crescimento  aTaxa de Lotação  aVeterinária  aZootecnia  aAnalise de regressao  aAvaliacao agronomica  aConsorciacao  aConsumo de matéria seca  aConsumption  aDelineamentos experimentais  aForrageira  aForrageiras  aGrazing systems  aGrowth rate  aIntensidade do pastejo  aManagement  aManejo de pastagem  aPastagens  aPastejo misto  aStocking density  aSuperficie de resposta  aTropicos