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Shahein,, A., EI-Sabrout, M., Yehia, M., Abd EI-Messeih, W. (2002). EFFECT OF DRIP IRRIGATION AND NITROGEN FERTILIZATION ON: 1- THE VEGETATIVE GROWTH AND ACTIVE ROOTING DEPTH OF "ANNA" APPLE TREES GROWN IN NEW RECLAIMED SOILS. Journal of Plant Production, 27(4), 2395-2409. doi: 10.21608/jpp.2002.253989
A. H. Shahein,; M. B. EI-Sabrout; M. M. Yehia; W. M. Abd EI-Messeih. "EFFECT OF DRIP IRRIGATION AND NITROGEN FERTILIZATION ON: 1- THE VEGETATIVE GROWTH AND ACTIVE ROOTING DEPTH OF "ANNA" APPLE TREES GROWN IN NEW RECLAIMED SOILS". Journal of Plant Production, 27, 4, 2002, 2395-2409. doi: 10.21608/jpp.2002.253989
Shahein,, A., EI-Sabrout, M., Yehia, M., Abd EI-Messeih, W. (2002). 'EFFECT OF DRIP IRRIGATION AND NITROGEN FERTILIZATION ON: 1- THE VEGETATIVE GROWTH AND ACTIVE ROOTING DEPTH OF "ANNA" APPLE TREES GROWN IN NEW RECLAIMED SOILS', Journal of Plant Production, 27(4), pp. 2395-2409. doi: 10.21608/jpp.2002.253989
Shahein,, A., EI-Sabrout, M., Yehia, M., Abd EI-Messeih, W. EFFECT OF DRIP IRRIGATION AND NITROGEN FERTILIZATION ON: 1- THE VEGETATIVE GROWTH AND ACTIVE ROOTING DEPTH OF "ANNA" APPLE TREES GROWN IN NEW RECLAIMED SOILS. Journal of Plant Production, 2002; 27(4): 2395-2409. doi: 10.21608/jpp.2002.253989

EFFECT OF DRIP IRRIGATION AND NITROGEN FERTILIZATION ON: 1- THE VEGETATIVE GROWTH AND ACTIVE ROOTING DEPTH OF "ANNA" APPLE TREES GROWN IN NEW RECLAIMED SOILS

Article 21, Volume 27, Issue 4, April 2002, Page 2395-2409  XML PDF (4.19 MB)
Document Type: Original Article
DOI: 10.21608/jpp.2002.253989
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Authors
A. H. Shahein,1; M. B. EI-Sabrout1; M. M. Yehia2; W. M. Abd EI-Messeih1
1Department of Pomology, Faculty of Agriculture, Alexandria University, Alexandria, Egypt.
2Horticulture Research Institute, ARC, Giza, Egypt.
Abstract
The present study was carried out in 1997 , 1998 , 1999 seasons on 5-years
old "Anna" apple trees budded on MM. 106 rootstock and grown in a loamy sand soil
at Desert Development Center (DOC) of the American University in Cairo (AUG)
Sadat Research Station (SRS), EI-Menofeya Governorate. The goal of this work was
to study the effect of four irrigation treatments and three nitrogen levels on the
vegetative growth, and active rooting depth (ARD). The amount of irrigation water
applied to each tested tree based on soil-matrix-potential in the three irrigation
treatments (11 , 12 and b) , and the control treatment.
The main results can be summarized in the following points:
        1-      The trunk cross-sectional area (TCA), branch diameter, average shoot length
and number of shoot per tree, average leaf area increased proportionally with
                  increasing irrigation rate and N level applied.                  .
        2-      Dry matter percentage in the leaves significantly increased with increasing the
irrigation rate, while the effect of the three N levels on this value was not big
enough to be significant.
3- Active rooting depth (ARD) increased as irrigation rate increased.
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