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2
-
Secondary and micronutrient recommendations for soils and crops : a guidebook / by H.L.S. Tandon.
- Fertilizer development and consultation organisation,
- 1989.
- New Delhi :
-
Sulphur research and agricultural production in India / H.L.S. Tandon.
- 856.1
- Fertilizer development and consultation organisation,
- cop. 1984.
- New Delhi :