EVALUATION OF DIFFERENT FORMS OF ZINC ON GROWTH AND CHEMICAL COMPOSITION OF RICE PLANTS | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 5, Volume 28, Issue 5, May 2003, Page 4141-4152 PDF (839.92 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2003.244613 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| H. I. EI-aila; A. Taalab; M. Abou Seeda | ||||
| Plant Nutrition Dept. National Res. Centre, Dokkl, Giza, Egypt. | ||||
| Abstract | ||||
| The solubility of Zn and the mechanisms that control Zn solubility may vary with soil properties, such as pH, organic matter content and Clay Content. A series of laboratory and greenhouse experiments were conducted to evaluate different forms of added zinc on growth and chemical composition of rice plant. Results revealed that soluble and exchangeable fraction of zinc are very small in aU treatments due to the alkalinity of the investigatect so it. It was noticed that application of Zn (urea). SO. and Zn-EDT A tt urea increased the extractable fraction of Zn during the incubation perio ,s up to 28days. The extractable fraction of Zn bound with the organic matter gradually increase during the incubation, considerable amount of the extractable Zn were observed. It was noticed that application of organic matter may increase the organic forms of element due to the organic complexes and lesser extent as inorganic precipitates. Results showed that addition of Zn. CA andlor Zn-EDTA with urea-N fertilizer increased the grain and straw yield of rice as compared wit ZnSO. alone. The application of Zn(Urea). SO. with organic matter gave the highest increase for both grain and straw yield of rice plant as compared with other treatments. Results revealed that application of organic matter with different forms of Zn stimulate the grain/straw ratio as compared with other treatments. Results also revealed that the addition of Zn(Urea). SO. or Zn-EQT A with organic matter increased N,P and K amounts in the grain and stra'f of rice plant. The addition of organic matter with different sources of Zn improved the accumulation of nutrient elements in grain and straw of rice plant. The availability of Fe, Mn and Zn with organiC matter added were marked y higher than without organic matter. | ||||
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