Estado nutricional do capim tanzânia irrigado sob doses de nitrogênio e alturas de corte

Abstract

The objective this experiment was to quantify the macro and micronutrients concentrations leaf of the Panicum maximum cv Tanzânia on the nitrogen fertilization (200, 400 and 600 kg ha-1) and cuts heightting (0,30 and 0,40 m) by aspersion. The experiment was conducted in dystrophic Red Latosol in Goiânia, GO. The randomized block design was in split splot in a 3 x 2 factorial arrangement, with three repetitions. The tenors leaf of the macronutrients had been determined: calcium (Ca), sulfur (S), phosphorus (P), magnesium (Mg) and potassium (K) and of the micronutrients: copper (Cu), iron (F), manganese (Mn) and zinc (Zn). The concentrated tenors in the rainy season had been superior to the determined ones in the dry season in both heights. The leaf concentrations of macro and micronutrients had not differed (P>0.05) of the nitrogen doses function and the cut heights, in both periods (rainy and dry season).