Revista Brasileira de Fruticultura
versión impresa ISSN 0100-2945
AGUIAR, Sinval Xavier de et al. Change the content of nitrogen in productive branches of persimmon. Rev. Bras. Frutic. [online]. 2010, vol.32, n.1, pp. 276-285. Epub 26-Feb-2010. ISSN 0100-2945. http://dx.doi.org/10.1590/S0100-29452010005000018.
The objective was to evaluate the change in content of nitrogen in productive branches of persimmon (Diospyros kaki L.) to nitrogen fertilization. The experiment was conducted in a commercial orchard in the municipality of Faxinal, state of Paraná, in geographical coordinates S 23 º 57 '35'', W51 ° 13'34'', altitude of 999 meters. The cultivar studied was "Giombo. 9 was used treatments, and a control without application of nitrogen (N), and the remainder resulting from the application in time of physiological maturity of fruits, pruning the top, end of flowering and 15/12/06 and combined with two doses of N (80 and 160 kg / ha)." The experimental design was a randomized blocks and 4 replications. The experimental plot was composed of 3 plants, the plant used for central assessment. Every forty-five days after fertilization were randomly taken from each treatment eight productive branches in different parts of the plant.. The leaf's treatment IP and MF showed the highest concentration of N in the spring and summer. And one decrease in the end of cycle before of leaf fall and in the branch of all treatments resulted in similar levels of N in the end o cycle. The time of pruning the top resulted in the smallest levels of N in both application of N.
Palabras llave : Diospyros kaki L.; Nitrogen fertilization; Time of application of N; Temperate Fruits.