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The Effect of Corps Types and Soil Depths on Sodium , Potassium Concentrations and Cation Exchange Capacity Value | ||
| journal of kerbala university | ||
| Article 1, Volume 3, Issue 2, 2007, Pages 49-58 PDF (0 K) | ||
| Abstract | ||
| Filed experiment is conducted on recently reclaimed silt clay to examine the effect of wheat , barley corps and soil depths on the concentration of dissolved and exchangeable sodium , available potassium and exchanging capacity value . In Hartha Research and Experimental Station /College Agricultural/ Basrah University (35) km northern-east of Basrah City The method used is the factorial experiment Design of complete blocks . The blocks represents three states : pre-cultivation , post-wheat cultivation and finally post-barley cultivation . There are two factors in the experiment .The first factor (A)represents the six depths of soil :a1(0-15)cm ,a2(15-30) cm,a3(30-45) cm,a4(45-60) cm,a5(60-90) cm and a6(90-120) cm . The second factor (b) represents the concentration of Cation and CEC values of : b1(available sodium),b2(adsorbed sodium), b3(available potassium) and b4(cation exchanging capacity). After applying the statistical analysis and correlation coefficient ,the following points were pin pointed . 1-There is a significant effect at 0.05 of barley on cation concentration , and CEC value when comparing it with pre-cultivation state , However there was no significant value when compared in wheat cultivation . 2-Soil depths do not show a significant differences. 3- Dissolved and exchangeable sodium , adsorbed sodium , and cation exchanging capacity value have shown significant difference among them with no exception . They also gave positive and negative correlation coefficient according the which it is recommended that barely cultivation in these lands its effective role on wheat cultivation . | ||
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