Crops are of three types on the basis of season, viz. kharif, rabi and zaid.
1. Kharif Crop: These crops are sown in June-July and harvested in OctoberNovember. Rice, maize, bajra, groundnut, moong, urad,sugarcane, soyabean, etc. are the main kharif crops. These crops depend on monsoon rains. But irrigation facilities in some parts of country are also utilized for this crop.
2. Rabi Crop: These crops are sown in October-November and harvested in MarchApril. Wheat, gram, oat, oilseeds (mustard, alsi), cumin, coriander, opium, isabgol, etc. are the main crops of rabi. Most of the rabi crops depend on irrigation.
3. Zaid Crops: These crops mainly include green vegetables and fodder. These are sown in February-April and harvested in June-July. Watermelon, gourd, cucumber, etc. are examples of zaid crops.