Sunflower — 3Land preparation & sowing

• Field preparation

  Plough once with a tractor, twice with an iron plough or 3–4 times with a country plough until all clods are broken. Spread 12.5 t/ha of FYM or compost before the last ploughing. Form ridges and furrows 60 cm apart, with irrigation channels according to the slope.

  Pending expert review

  Source

  Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Sunflower – Field preparation; ridges & furrows, pp. 216–218

  Region

  Tamil Nadu

  Last updated

  2026-11-04

• Seed rate, spacing and thinning

  Seed rate: varieties 7 kg/ha (rainfed) or 6 kg/ha (irrigated); hybrids 5 kg/ha. Spacing: hybrids 60 x 30 cm, varieties 45 x 30 cm. Place two seeds per hole, 3 cm deep, along the fertilized furrows. On the 10th day, thin to one healthy, vigorous seedling per hole.

  Pending expert review

  Source

  Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Sunflower – Seed rate, sowing & thinning, p. 218

  Region

  Tamil Nadu

  Last updated

  2026-11-04