SciELO - Scientific Electronic Library Online

 
vol.41 issue4Biomass, microbial activity and AMF in crop rotation system of maize/cowpea using saline waterRadiation balance in a soybean ecosystem in the Amazon author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Ciência Agronômica

On-line version ISSN 1806-6690

Abstract

COSTA, André Ribeiro da et al. Number of primary branches and productivity of two cultivars of coffee using drip irrigation. Rev. Ciênc. Agron. [online]. 2010, vol.41, n.4, pp.571-581. ISSN 1806-6690.  http://dx.doi.org/10.1590/S1806-66902010000400009.

This experiment was conducted in an area of the Technical Center of Irrigation (CTI) of the State University of Maringá (UEM) with the objective of evaluating the effect of the application of different percentages of doses of NPK (50%; 100%; 150%; 200%) in the number of plagiotropic branches and in the productivity of the cultivars of coffee Obatã and IAPAR - 59. The seedlings were planted in the spacing of 2.0 meters between lines and 1.0 meter within lines, characterizing a dense system. In this experiment was used the system of localized irrigation by dripping. The experiment followed a design completely randomized in split plots with four replications. The plots and subplots were composed by percentages of doses of NPK and crops, respectively. The interaction between those factors influenced significantly the productivity and the number of plagiotropic branches allowing concluding which dose of fertilizer is indicated for each cultivation. The maximum yield to grow Obatã was achieved with doses of NPK percentages of 119.5%, 151.25% and 154.17% for non-irrigated crops, irrigated and fertilized, respectively. The maximum yield for IAPAR - 59 in nonirrigated crops, irrigated and fertilized was achieved with doses of NPK percentages of 137.83%, 162% and 151.75% respectively. Regarding the number of primary branches the best dose for cultivating crops in irrigated and Obatã fertirrigated corresponded to a percentage of 200%, while the percentage dose of 150% showed the most suitable for IAPAR - 59 for the irrigated crops. The best productive was obtained for the fertirrigated cultivations.

Keywords : Coffee; Irrigation water; Drip irrigation.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License