Volume 15, Issue 56 (sumer 2011)
jwss 2011, 15(56): 141-154 |
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M. Sharifi, M. Afyuni, A. H. Khoshgoftarmanesh. Effects of Sewage Sludge, Compost and Cow Manure on Availability of Soil Fe and Zn and their Uptake by Corn, Alfalfa and Tagetes Flower. jwss 2011; 15 (56) :141-154
URL: http://jstnar.iut.ac.ir/article-1-1713-en.html
URL: http://jstnar.iut.ac.ir/article-1-1713-en.html
, afyuni@cc.iut.ac.ir
Abstract: (35578 Views)
Micronutrients such as Fe and Zn in adequate level are essential for plant growth cycle and impose a vital role in increasing yields of most agricultural crops. Using organic wastes such as sewage sludge, compost and manure is a proper practice for returning organic matter and some nutrients into the soil, particularly in arid and semi-arid regions. The objective of this study was to determine the effects of sewage sludge, compost and cow manure on availability of Fe and Zn in soil and their uptakes by corn, alfalfa and targetes flower. A completely randomized design with three treatments (sewage sludge, compost and cow manure at 25 Mg/ha) was used. Application of sewage sludge, compost and cow manure significantly increased availabile Fe and Zn of the soil. The application of organic wastes increased the dry matter yield of the plants. Fe and Zn concentration of plants shoots in organic amendments treatments were significantly greater than blank. The highest mean concentration of Fe in plant tissues was obtained in the cow manure and the highest mean concentration of Zn in plant tissues was obtained in the compost treatment.
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