Controlled irrigation and nitrogen, phosphorous and potassium fertilization affect the biochemical composition and quality of Arabica coffee beans
2017
Controlled irrigationduring the dry period associated with adequate nitrogen (N), phosphorous (P) and potassium (K) fertilization led to the accumulation of biochemical compounds in
coffee beansconsidered as positive precursors of beverage quality. Adult plants of coffee (
Coffeaarabica 'Rubi') were cultivated using different water regimes (WR) and fertilization conditions under the
dry climateof the Brazilian Cerrado.
Coffee-beanphysical characteristics were evaluated as well as biochemical composition by near-infrared analysis. The K treatment mostly affected bean biochemistry, lipid and
chlorogenic acid(CGA) contents, which increased with increasing amounts of fertilizer. Caffeine contents increased with higher amounts of N, but no significant effects of P treatment on bean biochemical composition were observed. Sucrose and total lipid contents always appeared higher in beans of non-irrigated plants than those beans from plants grown with continuous irrigation. In contrast, caffeine and CGA contents were higher in beans of irrigated as compared with non-irrigated plants. For the first time, the current results showed that controlled management of irrigation during the dry period associated with reasonable NPK fertilization led to the accumulation of biochemical compounds in
coffee beansconsidered as positive precursors of beverage quality. (Resume d'auteur)
Keywords:
-
Correction
-
Source
-
Cite
-
Save
40
References
15
Citations
NaN
KQI