Study And Comparison Of Nutmeats Content (N, P, K) In Agricultural Lands And Rangelands (Case Study: Kermanshah Province)
2006
Souri, M., MSc. Graduated in Management of Arid Regions, University of Tehran, | Jafari, M., Professor, University of Tehran | Azarnivand, H., Asst Prof. University of Tehran, | Sharifani, F., MSc. In Combating Desertification University of Tehran
Among necessary nutrients for plant survival, some nutrients have special role including N, P, K. in order to study the importance of the mentioned nutrients, three regions were considered in Kermanshah province to determine the variation of the nutrients in different agricultural and rangelands. A split design based on the completely randomized blocks in three treatments (steep slope rain fed, gentle slope rain fed and rangelands) for three regions and three replications were considered. Soil samplings from three layers (0-30, 30-60, 60-90 cm) and analysis of variance showed that is a significant difference between treatments, soil layers and regions (99%). Also comparison of means using Duncan analysis showed that in each three layers amount of N in gentle slope rain fed lands of Kermanshah and Javanroud is suitable while in steep slope rain fed lands of Paveh and Kermanshah is not suitable. The results of K showed ideal condition in gentle slope rain fed lands and unsuitable variations for rangelands of Kermanshah. Mean while variation of P in gentle slope rain feds of Javanroud have acceptable condition but in steep slope rain feds of Kermanshah it was not idea.
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