- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
KINETICS OF POTASSIUM ADDED FROM TWO SOURCES UNDER DRIP AND FURROW IRRIGATION SYSTEMS | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 2014, Issue 2, 2009, Pages 0-0 | ||
| Authors | ||
| A. H. Al-Zubaidi; I. S. Salman | ||
| Abstract | ||
| Field experiment was conducted at Al Yousfia region in Silt clay loam soil. Corn crop was planted. using drip and furrow (control) irrigation systems. Two sources of potassium fertilizer (Sulfate and chloride) were used with three levels 0, 100, and 200 Kg K.ha-1. Potassium fertilizer was splited into 12 segments added by means of fertigation for drip irrigation, and broadcasted for furrow irrigation system. In addition, nitrogen and phosphorous fertilizers were added as plant required. Sequential Botassium extraction from soil after planting and fertilization was done using citric acid 5 x 10-4 M (12 times) to evaluate potassium release according to kinetics equations. (zero order, first order, diffusion, Elovich and power equations). Accumulative Botassium released under drip irrigatin was higher than that under furrow irrigation. Similar trend was found for both types of fertilizer, and the 2nd level of KCl gave higher values of potassium release. Power function, parabolic and Elovich equations well described potassium release process among other equations, but power function is the best according to correlation and standred error . | ||
|
Statistics Article View: 154 PDF Download: 99 |
||