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Details for article 88 of 134 found articles
| Title: |
Phosphate Adsorption/desorption in Seven Soil Series of Pakistan |
| Author: |
Nisar Ahmad Abdul Razzaq Muhammad Yaseen |
| Appeared in: |
Pakistan journal of biological sciences |
| Paging: | Volume 2 (1999) nr. 3 pages 897-899 |
| Year: |
1999 |
| Contents: |
A laboratory experiment was conducted to study the phosphorus adsorption and desorption characteristics of Pindorian, Satghrah, Shahdara, Wazirabad, Balkassar, Hafizabad and Missa soil series of Pakistan. Surface soil samples of these soil series were collected and analysed for EC, pH, OM, CaCO3, and texture. Five levels of P (50, 100, 200, 400 and 800 ug P/g of soil) were added to these samples and were shaken for 24 hours and got filtrate after centrifugation. The amount of desorbed P was determined by using NaHCO3 solution as an extractant. The soils with high amount of CaCO3 or clay or both adsorbed larger amounts of added P than the soils having the lower amounts of CaCO3 or clay or both. Similarly, the soils with more CaCO3 released the adsorbed P in lower amounts as compared to the soils having less CaCO3 contents. The order of P adsorption by these soils were: Missa> Hafizabad> Balkasser> Pindorian> Satghrah> Shahdara> Wazirabad and the order of desorption were just reverse to it. Although the total amount of adsorbed P increased with increasing P application but the recovery of adsorbed P remained almost same at each level of P application. |
| Publisher: |
Asian Network for Scientific Information (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 88 of 134 found articles
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