Kirkuk University Journal for Agricultural Sciences (KUJAS)

Effect of Soil Phosphorus Chemical Equilibrium on P-availability for Wheat using Solubility Diagram and (DRIS-Chart) Methods

https://doi.org/10.58928/ku12.03224
Volume 3, Issue 2
Autumn 2012
Page 43-51
Kirkuk University Journal for Agricultural Sciences (KUJAS)

Document Type : Research Paper

Author

Akram Othman Esmail
Abstract
The study included the comparison between solubility diagram method and DRIS-chart method in studying phosphorus availability and it's status in calcareous soil. The results refers to record the similar results in both methods, in both methods the best treatment for recording the highest wheat yield and phosphorus availability was application of 90 kg P ha-1. On the other hand the nutritional balance among phosphorus and all the studied nutrients (nitrogen, potassium .calcium and magnesium) was recorded from application of 90 kg P ha-1 only.

Keywords

Solubility Diagram
DRIS
Chart
Phosphorus
Calcareous Soil

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