EFFECT OF SULFUR AND NPK FERTILIZERS ON NPK CONCENTRATION IN WHEAT LEAVES AND GRAINS

H. Al-Hilfy, I.; H. Zeboon, N.

	EFFECT OF SULFUR AND NPK FERTILIZERS ON NPK CONCENTRATION IN WHEAT LEAVES AND GRAINS
The Iraqi Journal of Agricultural Science
Article 1, Volume 45, Issue 7, 2014, Pages 700-707
Authors
I. H. Al-Hilfy; N. H. Zeboon
Abstract
A field experiment was conducted during 2010 and 2011 seasons at the experimental farm, department of field Crop Science, College of Agriculture, University of Baghdad to study the effect of sulfur and nitrogen, phosphorus and potassium fertilizers on its concentrations in leaves and grains of wheat. RCBD with four replications used as Factorial experimental, involved two factors, first was sulfur application with four levels (0, 2, 4 and 6 ton.ha-1), the second was application nitrogen, phosphorus and potassium fertilizers as recommendations ( 200 kgN. ha-1, 100 kg P2O5.ha-1 and 120 kg K.ha-1) and half of recommendations. Results showed that 4 ton S.ha-1 was superior in nitrogen concentration in leaves and grain in increasing about 48.27%, 57.22%, 29.98% and 26.40% compared to control for both seasons, respectively, and for phosphor concentration in grain was 0.504%, in the second season, 6 ton S.ha-1 was superior in phosphorus concentration in leaves at the second season and in grain at first season about 0.346% and 0.472% and potassium concentration in leaves and grain was 4.630%, 4.162%, 0.210% and 0.250%. Application NPK AS recommended was superior in increasing nitrogen concentration in leaves and grain for both season and phosphorus concentration in leaves and grain for second season only and in increasing 15.22%, 28.56%, 8.73%, 24.91% and 1.33%. While application half of the recommended was superior in phosphor concentration in leaves and grain increasing for first season and potassium concentration in leaves for first season and grain for both season in increasing 3.81%, 10.23%, 12.36%, 6.28% and 12.97%. Results of this study was demonstrate that sulfur application with NPK fertilizers as recommended was increasing this elements concentration in leaves and grains and we can recommend 4 ton h-1 with NPK fertilizers as recommended to get the best concentration for this elements and affected in growth.
Keywords
Wheat; Sulfur; NPK; fertilization; macronutrients

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