Growth of forage cultivar Xaraés and fertility of an Oxisol fertilized with bovine rumen residue

Revista Brasileira de Engenharia Agrícola e Ambiental

Silva, Fernando L.¹  Trautmann-Machado, Raquel J.¹  Pierangeli, Maria A. P.¹  Geron, Luiz J. V.¹  Sousa Neto, Eurico L. de¹  Eguchi, Edson S.¹ 

[1] Universidade do Estado de Mato Grosso, Pontes e Lacerda

关键词: Brachiaria brizantha;    nutrient cycling;    environmental management;    Urochloa brizantha;   

DOI  :  10.1590/S1415-43662012001100006

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

This study evaluatedthe application of increasing doses (0, 10, 21 and 84 Mg ha-1) of the driedbovine rumen residue (BRR) (90.00% DM) or wet (7.16% DM) with nitrogen content(N) of 1.43% in the DM, considering that only 33% of N of the BRR would be availableto meet the requirement of Urochloa brizantha cv. Xaraés of 0, 50, 100and 400 kg N ha-1, on the fertility of an Oxisol (pH in water, exchangeablecations, P, N and organic matter) after 30 days of organic fertilization andon the production of dry biomass (BIO), height, levels of nitrogen (N) and crudeprotein (CP) after 60 and 120 days of cultivation of the Xaraés. A completelyrandomized design was used in 4 x 2 factorial (four doses of fertilizer BRRand two conditions of RRB dry matter) with three replications. The applicationof increasing doses of dry or wet BRR increased linearly (p < 0.05) the levelsof N, P, K and organic matter of soil. Different doses of dry or wet BRR increasedlinearly (p <0.05) the dry BIO, the contents of N and CP of the grass Xaraésafter 60 days of cultivation, but a quadratic effect (p < 0.05) was verifiedfor the contents of N and CP of the grass Xaraés after 120 days of cultivation.Thus, the Urochloa brizantha cv. Xaraés presented higher production ofdry BIO, regardless of the harvest period and the condition of the DM of BRRat the application time.

【 授权许可】

CC BY-NC