Rate of seeding and treatment: Irrigated crops require a seed rate of 3.5 kg/ha. For rainy crops, use 4.0 kg/ha seed, depending on moisture availability in the fields. To control stem rot disease, apply carbendazim to the seed (2.0 g/kg seed).
Nutrient management: In an irrigated crop, apply 80 kg N, 30 kg P2O5, 20 kg K2O, and 25 kg ZnSO4 (21 percent) per hectare. At the time of sowing, a half dose of N and a full dose of P2O5, K20, and ZnSO4 should be applied. For phosphorus and Sulphur requirements, single super phosphate is preferred. If you’re going to utilize Diammonium Phosphate (DAP) to meet your phosphorus needs, apply 250 kg of gypsum per hectare at the end of the sowing season. At the time of sowing, inoculate the seed with Azotobacterial and PSB culture. In a rainfed crop, apply 40 kg N and 20 kg P2O5/ha at the time of sowing.
Plant protection: Painted bug causes damage to the emerging seedlings at the time of emergence. Spray 500 ml malathion 50 EC / ha in 500-liter water for management of the insect.
Second spray of glyphosate 41 percent SL @ 125 ml/ha in 375-liter water may be done at 55-60 DAS in December. Spray carbendazim (0.1 percent) at 45 and 60 DAS in mustard-growing locations where stem rot disease is a regular occurrence to control the disease. Aphid infection occurs in the latter two weeks of December and the first two weeks of January. The use of 625 mL dimethoate 30EC is recommended for aphid control. To counteract the effects of frost, irrigate the crop.