Seed hardening ensures high germination. Soak the seeds in an equal volume of 2% potassium dihydrogen phosphate solution for 6 hours, then dry them back to their original moisture content in the shade before sowing.
Pending expert review
Source
Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Rainfed sorghum – Seed treatment (seed hardening), p. 74
Region
Tamil Nadu
Last updated
2026-11-04
Biofertilizer seed treatment
Treat the seeds with three packets of Azospirillum (600 g) and three packets of phosphobacteria, or six packets of Azophos (1200 g per hectare).
Pending expert review
Source
Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Rainfed sorghum – Seed treatment (iii), p. 74
