Field bean — 4Water, nutrients & weeds

• Fertilizer

  Apply 20 kg N, 80 kg P2O5, 40 kg K2O and 40 kg S (as 220 kg gypsum) per hectare as basal. Under irrigation, if the soil is deficient, apply 25 kg ZnSO4, 10 kg borax and 25 kg FeSO4 with FYM. A spray of DAP or urea at 20 g per litre at flowering and again 15 days later increases flower number and pod set.

  Pending expert review

  Source

  Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Field lab-lab – Fertilizer & foliar application, p. 172

  Region

  Tamil Nadu

  Last updated

  2026-11-04

• Irrigation and weeding

  Irrigate immediately after sowing, give a life irrigation on the third day, then every 7–10 days. Flowering and pod formation are critical stages when irrigation is a must; avoid water stagnation. If no herbicide is used, hand-weed on the 25th and 45th day after sowing.

  Pending expert review

  Source

  Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Field lab-lab – Water management; weed management (ii), pp. 172–173

  Region

  Tamil Nadu

  Last updated

  2026-11-04