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Research Detail

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M. A. Motalib
Principal Scientific Officer
Soil Science Division, BTRI, Srimangal, Moulvibazar

Ashim Kumar Saha
Scientific Officer
Soil Science Division, BTRI, Srimangal, Moulvibazar

Apu Biswas
Scientific Officer
Soil Science Division, BTRI, Srimangal, Moulvibazar

In before tea estates used to apply agricultural lime (CaCO3) to amend the soil pH. This agricultural lime contains only Calcium. But Dolomitic lime contains both calcium and magnesium which are essential element for plant growth. Dolomitic lime used for the correction of pH. Lime not only decreases the pH but also improve physical condition of the soil improving soil structure. It increases the cation exchange capacity and availability of other nutrients. So an experiment was set up to identify the performance on the yield of tea and soil physical and chemical properties.The trend result shows that, increasing rate of dolomite has got positive response on the yield. Highest yield was recorded in treatment T7 where 1500kg/ha dolomite was applied. In case of soil properties acidity decreased and availability of nutrients increased.

  Dolomite, Soil pH and yield
  Mazdehee Tea Estate
  01-01-2008
  31-12-2010
  Crop-Soil-Water Management
  Soil fertility

To identify the performance on the yield of tea and soil physical and chemical properties.

Treatment: 7, Replication:3, Design: RBD, Treatment combination: T1 = Control + usual fertilizer (NPK), T2 = 250 kg/ha + usual fertilizer (NPK), T3 = 500 kg/ha + usual fertilizer (NPK), T4 = 750 kg/ha + usual fertilizer (NPK), T5 = 1000 kg/ha + usual fertilizer (NPK), T6 = 1250 kg/ha + usual fertilizer (NPK), T7 = 1500 kg/ha + usual fertilizer (NPK) Regular weekly data were recorded.

  Annual Report 2010
  
Funding Source:
1.   Budget:  
  

The trend result shows that, increasing rate of dolomite has got positive response on the yield. Highest yield was recorded in treatment T7 where 1500kg/ha dolomite was applied. In case of soil properties acidity decreased and availability of nutrients increased.

  Report/Proceedings
  

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