SciELO - Scientific Electronic Library Online

vol.30 issue2Effect of temperature and shear rate in the properties of whole flow Cupuassu pulp (Theobroma grandiflorum)Phenology, production and content of strawberry crops cultivars anthocyanins produced under protected environment author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Fruticultura

Print version ISSN 0100-2945On-line version ISSN 1806-9967


LYRA, Guilherme Bastos et al. Estimate of great and economic levels of irrigation in papaya tree (Carica papaya L.) Golden cultivar in north of Espírito Santo conditions. Rev. Bras. Frutic. [online]. 2008, vol.30, n.2, pp.390-395. ISSN 0100-2945.

This paper aimed in identifying great levels of irrigation and nitrogen fertilization that provide the greatest physical and economical productivity of papaya tree Golden cultivar. In the identification of the great levels it was used production function. The experimental study was conducted at Caliman S.A. farm, in the city of Linhares, State of Espírito Santo, Brazil. The experimental design was randomized blocks in a 5x4 factorial scheme in split-plot. Five irrigation water depths (0.5; 0.7; 0.9; 1.1 e 1.3 of the evapotranspiration of reference) were used with daily irrigation frequency and four rates of ammonium sulphate (90, 188, 288 e 377 kg ha-1 month-1). The productivity estimation (t ha-1) as a function of the applied total water depth obtained a significant statistical adjustment (p < 0.05) from the model of second order. The great economical productivity was 94.83 t ha-1, with the maximum depth of 1546.50 mm. Operational net incomes for domestic and international markets were R$ 313.19 e R$ 929.57 ha-1 month-1, respectively.

Keywords : papaya tree; function production; irrigation management.

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


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