IMPACT OF FARMYARD MANURE ON THE AVAILABILITY OF SOME HEAVY METALS IN FLOODED RICE SOILS IRRIGATED WITH DRAINAGE WATER | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 5, Volume 34, Issue 1, January 2009, Pages 635-641 PDF (345.14 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2009.90261 | ||
| Authors | ||
| S. A. Hammad1; S. A. Ghanem2; E. S. Naeem2; Howida B. El-habet2 | ||
| 1Soil Sci. Dept. of Agric., Mansoura Univ., Egypt. | ||
| 2Rice Research and training Center Sakha, Kafr EL-Sheikh | ||
| Abstract | ||
| A field experiment was conducted in summer season 2007 at the farm of Rice Research and Training Center farm Kafr El-Sheikh to study the impact of FYM and urea and their combination with using drainage water for irrigation on availability of some heavy metals such as Lead(Pb), nickel (Ni), Cadmium (Cd). Results indicated that the highest values of available pb+2, Ni+2, Cd+2 were found with the combination of 150 kg urea plus the rate of 9 ton FYM.Fed-1. Data indicated that ,the lowest values of available Cd2+,Ni2+ and pb2+in soil were found at flowering stage compared with the other stages at all treatments. The results of simple correlation coefficient ( r )between organic matter ( OM) ( y ) and each of available Pb+2 (X1), available Ni+2 ( X2) and available Cd+2 (X3 ) at harvest stages showed the character most closely associated with organic matter was the available Pb+2 (X1 ) (R= 0.9) . Multiple linear regressions showed that the prediction equation for organic matter was formulated as follows: Y = -0.8+ 0.224 X1 + 0.301X2 + 2.62 X3 | ||
|
Statistics Article View: 124 PDF Download: 337 |
||
