EFFECT OF ASCORBIC ACID, NITROGENOUS AND PHOSPHOROUS FERTILIZATION ON PRODUCTIVITY OF WHEAT(CHAM-4) UNDER THE IRRIGATED AGRICULTURE OF DEIR-EZZOR GOVERNORATE

Document Type : Research articles.

Author

Dept. of Field Crops , Faculty of Agriculture, Deir-Ezzor, Al-Furat University

Abstract

Experiment of this work was carried out on a clay soil at Alabed village,
which is located at east of Deir- ezzor during two successive growing seasons of
2003-2004 and 2004-2005 to study effect of Ascorbic acid, nitrogenous and
phosphorous fertilization on productivity of wheat (Cham-4) as well as to
determine the best method of treating wheat plants with the ascorbic acid.
The obtained results showed that fertilizing wheat with full dose of N and
P (150 kg N/ha and 100kg P2O5/ha) and treating wheat grains with a solution of
ascorbic acid improve seed germination, increase seedlings emergence above the
ground surface and entering spiking and complete maturity stages earlier .
Thus, spraying wheat plants at tillering stage with ascorbic acid solution
positively increased number of grains per spike, weight of a 1000grains and grain
yield per unit area when was fertilized with 75kg N/ha and 50 kg P2O5/ha.
Also, applying the full recommended fertilizer doses of N & P and
spraying with ascorbic acid solution at tillering stag led to increase straw yield per
unit area.


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