A STUDY ON THE EFFECTIVENESS OF THE SPLIT APPLICATION OF NITROGEN FERTILIZER ON THE TEA PLANT

  *Burhan KACAR           ** Rıfat YALÇIN              *** Muammer SARIMEHMET        ****Hülya MAHMUTOĞLU        ***** Mücella MÜFTÜOĞLU                
 

    SUMMARY
    Field trials have been carried out for three years in four different places to evaluate the effectiveness of the split application of nitrogen fertilizer on the tea plants. Three different rates of the nitrogen fertilizer applied in one time and every fifteen days after dividing 2,3 and 6 equals parts.
    The yield of tea leaves and N content of the plants increased linearly in parallel to the amounts of nitrogen fertilizer applied.The effectiveness of the split application of nitrogen fertilizer has been found significant in all experimental areas and in the period of trials. It is concluded that future trials should be carried out in the tea plantations established with vegetative propegation and the intervals of the split application of nitrogen fertilizer should be shortened as much as possible.
     * Ankara Üniversitesi Ziraat Fakültesi Toprak Bölümü. ANKARA
    ** Ankara Üniversitesi Ziraat Fakültesi Toprak Bölümü. ANKARA 
   *** Çay Enstitüsü Başkanlığı .RİZE
  **** Çay Enstitüsü Başkanlığı .RİZE
 ***** Çay Enstitüsü Başkanlığı .RİZE
        Doga.Tr.J.Of.Agrıculture and Forestry.1S (1991) 685-699. TUBİTAK


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