millets, such as pearl millet and sorghum, it prefers moderate rainfall ( annually). The majority of worldwide finger millet farmers grow it rainfed, although yields often can be significantly improved when irrigation is applied. In India, finger millet is a typical rabi (dry-winter season) crop. Heat tolerance of finger millet is high. For Ugandan finger millet varieties, for instance, the optimal average growth temperature ranges at about 27 °C, while the minimal temperatures should not be lower than 18 °C. Relative to other species (pearl millet and sorghum), finger millet has a higher tolerance to cool temperatures. It is grown from about 500 to about 2400 m above sea level (e.g. in Himalaya region). Hence, it can be cultivated on higher elevations than most tropical crops. Finger millet can grow on various soils, including highly weathered tropical lateritic soils. It thrives in free-draining soils with steady moisture levels. Furthermore, it can tolerate soil salinity up to a certain extent. Its ability to bear waterlogging is limited, so good drainage of the soils and moderate water-holding capacity are optimal. Finger millet can tolerate moderately acidic soils (pH 5), but also moderately alkaline soils (pH 8.2). Cropping systems Finger millet monocrops grown under rainfed conditions are most common in drier areas of Eastern Africa. In addition, intercropping with legumes, such as cowpea or pigeon pea, are also quite common in East Africa. Tropical Central Africa supports scattered regions of finger millet intercropping mostly with legumes, but also with cassava, plantain, and vegetables. Most common finger millet intercropping systems in South India are as follows: With legumes: Finger millet/dolichos, finger millet/pigeonpea, finger millet/black gram, finger millet/castor With cereals: Finger millet/maize, finger millet/foxtail millet, finger millet/jowar, finger millet/little millet With other species: Finger millet/brassicas, finger millet/mustard Weeds Weeds are the major biotic stresses for finger millet cultivation. Its seeds are very small, which leads to a relatively slow development in early growing stages. This makes finger millet a weak competitor for light, water, and nutrients compared with weeds. In East and Southern Africa, the closely related species Eleusine indica (common name Indian goose grass) is a severe weed competitor of finger millet. Especially in early growing stages of the crop and the weed and when broadcast seeding instead of row seeding is applied (as often the case in East Africa), the two species are very difficult to distinguish. Besides Eleusine indica, the species Xanthium