EFFECT OF ORGANIC CONDITIONERS ON POTASSIUM INTENSITY- QUANTITY RELATIONSHIPS IN CALCAREOUS SOILS / NORTHERN IRAQ

AllAlabdy, Rana

doi:10.33899/magrj.2019.161342

	EFFECT OF ORGANIC CONDITIONERS ON POTASSIUM INTENSITY- QUANTITY RELATIONSHIPS IN CALCAREOUS SOILS / NORTHERN IRAQ
Mesopotamia Journal of Agriculture
Article 11, Volume 45, Issue 3, 2017, Pages 109-124 PDF (755.31 K)
Document Type: Research
DOI: 10.33899/magrj.2019.161342
Author
Rana allAlabdy^*
Soil and Water Sciences Dept., College of Agriculture and Forestry, Mosul University. Iraq
Abstract
Fertility status of some calcareous soil in Nineveh governorate North Iraq. were evalued studying K buffering capacity using Beckett method. The thermodynamic parameter included intensity factor, (DK) amount of adsorbed K as quantity factor (PBCK) and free energy (-∆G), The results showed (ARK_e) ranged between 28-353 (mole.L^-1) and 71-355 (mole.L^-1)^{- 1/2}without and with the addition of sulfur respectively. The results for K- desorption ranged 102-28 (mole.L^-1)^-1/2 and 112-68 (mole.L^-1)^-1/2 for the some trend mentioned. potassium potential Buffering Capacity (PBCK) were ranged between (201-31),(236-1483) after adsorption experiment and (239 -169), (146-2469) C. mole.K (mole.L)^-1/2 after desorption experiment for treatment, without and with sulfur respectively. The results free for energy of potassium replacement ranged between (-3480,-3342), and (-3339,-4292),(-4066 -3480) and (-4022, -2954) Cal.mole^-1 for potassium adsorption and desorption after sulfur application respectively. The result showed sulfur has a significant increasing on potassium availiabity parameter. Accordingly, the study revealed that sulfur has a singifant effect on K availabity.
Keywords
Q/I; Potassium; adsorption; Desorption; Sulfur

Statistics Article View: 343 PDF Download: 961