The Effective Of Phosphate Fertilization On Growth And Yield Of Pear Trees (Le-Conte) Cultiver .

N. Hassan, Mohammed; Kh.Mohammed, Dr.Bahram

doi:10.58928/ku10.01102

	The Effective Of Phosphate Fertilization On Growth And Yield Of Pear Trees (Le-Conte) Cultiver .
Kirkuk University Journal for Agricultural Sciences (KUJAS)
Article 1, Volume 1, Issue 1, 2010, Pages 10-18 PDF (0 K)
DOI: 10.58928/ku10.01102
Authors
Mohammed N. Hassan; Dr.Bahram Kh.Mohammed
Abstract
This study was carried out during ( 2003- 2004 ) on pear trees ( pyrus communis L. cv . Le-conte ). Orchard in kirkuk city . the aim of this study was to find out the effect of phosphorus on growth and yield characteristics . Forty eight Trees 8 years old planted at spacing of 4*6 meter . were chosen and they were Treated with four levels of super phosphate ( 0 ، 250 ، 500 ، 750 ) g / tree .The randomized complete block design was used . Analysis of variance and Duncuns multiple rangetest was adopted at 5 % level of probability and the important results of this study could be summarized as follow : 1- Results obtained indicated that ( N ، P ، K ) were increased significantly by ( 750 g / tree ) super phosphate compared with control treatments . 2- The results showed that there was significant increasing in vegetative growth of trees which trialed with ( 750 g / tree ) super phosphate compared with control treatments . 3- The quantitative characteristics of yield significantly increased with ( 750 g / tree ) super phosphate which had abetter results compared with control treatments . 4- The qualitative characteristics of yield significantly increased with (750g / tree) super phosphate which had abetter results compared with control treatments .

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