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Alvim et al., 2003. Rev. Bras. Zootec., 32 (1): 47-54

Document reference 
Alvim, M. J. ; Botrel, M de A. ; Rezende, H. ; Xavier, D. F., 2003. Evaluation under grazing of forage potential of Cynodon grass under two nitrogen and potassium Levels. Rev. Bras. Zootec., 32 (1): 47-54
Alternative title 

Avaliação sob pastejo do potencial forrageiro de gramíneas do gênero Cynodon, sob dois níveis de nitrogênio e potássio


The study was undertaken in Coronel Pacheco – MG (National Dairy Cattle Reserch Center of the Brazilian Agricultural Corporation – EMBRAPA), to evaluate, under grazing conditions, the Cynodon nlenfuensis, Vanderyst and three cultivars of Cynodon dactylon, L. Pers. (Florona, Florakirk, Florico), fertilized with either 250:200 or 500:400 kg/ha/year of N:K2 O. The experimental design was a randomized blocks, in split-plot, and three replications. No significant difference on dry matter yield between the two rates of N/K2 O were found. In both N:K2 O rates, Florakirk cultivar presented the highest annual dry matter yield, however, in the dry season it showed a low yield level. The Florico was the cultivar with the lowest dry matter yield. The best and the worst forage distribution were exhibited by cultivars Florona and Florakirk, respectively. The CP contents in the forage was not influenced by either nitrogen rates or season, and directly related to the leaf-stem ratio. The highest  CP contents were found in Florakirk, while the lowest in african stargrass grass and Florico cultivar. The IVDMD of forage produced during the rainy season was slightly superior to those of the dry season. The N:K2 O rates did not influence IVDMD, which were higher in Florakirk and Florona cultivars.

Citation key 
Alvim et al., 2003