|
| << previous | next >> |
Journal description
All volumes of the corresponding journal
All issues of the corresponding volume
All articles of the corresponding issues
Details for article 47 of 134 found articles
| Title: |
Evaluation of Quality of Irrigation Water at Village Tarkha-kohi, District Karak (NWFP) |
| Author: |
Muhammad Jamal Khan Riaz A. Khattak N. Daula |
| Appeared in: |
Pakistan journal of biological sciences |
| Paging: | Volume 2 (1999) nr. 3 pages 642-644 |
| Year: |
1999 |
| Contents: |
This project was undertaken on the reports of the farmers of village Tarkha-Kohi complaining about the salinity of tube well water in order to suggest appropriate measure for their improvement and reclamation. Irrigation sources were surveyed in the area and fifteen representative samples were collected for analysis. The pH and electrical conductivity (EC) ranged from 7.42-8.5 and 0.75-16 dSm-1, respectively. According to USDA Hand Book 60, out of the 15 water samples, 4 were classified as C2S1, 4 samples as C4S1, 1 sample each under the category of C3S1 and C3S2, 4 samples as C4S2 while only one sample fell in C4S4 category. Sodium adsorptive ratio (SAR) ranged from 1.82 to 45.23 (mmol L -1). SAR adj. (Ayers and Westcot 1985, and Sposito 1977, model) had close relation with SAR analytical where as the equation of Oster and Rhoades (1977) over estimate SAR analytical. Provision of proper drainage system, blending of irrigation water, deep ploughing, growing of salt tolerant crops and proper crop rotation will improve the use of such water for economical crop production. |
| Publisher: |
Asian Network for Scientific Information (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 47 of 134 found articles
| << previous | next >> |