THE EFFECT OF INTERACTION AMONG SOIL CONTENT OF GYPSUM, SOIL DEPTH AND IRRIGATION WATER SALINITY IN CONTENT OF AVAILABLE | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 19, Issue 6, October 2014, Pages 0-0 | ||
| Authors | ||
| H. R. Salah; S. I. Ibrahim | ||
| Abstract | ||
| Pots experiment was conducted to study the effect of interaction among soil content of gypsum, soil depth and irrigation water salinity in content of available nutrients N, P and K in soil. The experiment was conducted at Khaldiyah city-Ghazwan during the season 2008L2009 in plastic pots (90cm high, 42 cm diameter) by using the complete randomized design. Experiment content three factors. First was soil content of gypsum with two levels 98 and 194 gm.kg-1 soil. The second soil depths which were 15 and 30 cm. The third were irrigation water salinity with three levels 1.13, 2.65 and 3.80ds.m-1. The treatments were irrigated after losing 50% of available water, so that taken soil samples for estimate content of available nutrients elements N, P and K in soil. Results showed that soil content of gypsum (p), soil depth (D), irrigation water salinity (w) and the interaction among these factors had significant effect on soil properties according to following mathematical relationships: Available of N in soil: Y= 73.822 -0.452p +3.963w Available of P in soil: Y= 71.227 – 0.454p – 7.838w Available of K in soil: Y= 130.889 -0.31p +14.713w -0.024pw-0.008pdw | ||
|
Statistics Article View: 115 PDF Download: 65 |
||