Trace element concentration and ratio in rice grown in tidal flooded soil during tidefree period
Micronutrient imbalance in the rhizosphere of wetland rice may affect the yield of the crop. A field experiment was conducted in tidal flooded coastal soil during December-May 2006 to investigate the composition and ratio of Fe, Mn, Cu and Zn at different stages of rice growth. Concentrations of Fe, Zn and Cu in plant tissue were higher at early filleting and maximum tillering stages compared to panicle initiation, flowering and ripening stages. Manganese concentration was similar at all the growth stages. Management of N, P or K had no effect on micronutrient concentration in rice plant. Concentrations of Mn, Zn and Cu were at the optimum level in the plato, while Fe concentration was at the toxic level, however, no Fe-toxicity symptom was observed in the plant.
Micronutrient concentration Fe/Mn ratio mid-tillering stage panicle initiation stage
M. A. Saleque M. A. Haque
Principal Scientific Officer, Bangladesh Rice Research Institute Regional Station, Barisal, P. O. Bo Lecturer, Soil Science Department, Patuakhali Science and Technology University, Dumki, Patuakhali 8
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
714-715
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）