Intensive production and commercialization of biodiesel from edible-grade sources have raised some critical environmental concerns. In order to mitigate these environmental consequences, alternative oilseeds are being investigated as biodiesel feedstocks. Castor (Ricinus communis L.) is one of the most promising non-edible oil crops, due to its high annual seed production and yield, and since it can be grown on marginal land and in semi-arid climate. click here to continue reading
1. Preparation of the field Plough two-three times with country or mould board plough. 2. Application of Organic Manures Spread 12.5 t/ha of FYM or compost evenly on the main field before last ploughing and incorporate in to soil by working a country plough. Apply 30 kg sulphur/ ha through gypsum at the time of last ploughing for higher castor yield. NOTE: Do not leave FYM or compost exposed to sunlight as nutrients will be lost. 3. SEED RATE Adopt a seed rate of 10 kg/ha for varieties and 5 kg/ha for hybrid. 4. SPACING Adopt the following spacing. Rainfed situation Irrigated situation Varieties 90 cm x 60 cm 90 cm x 90 cm Hybrids 120 cm x 90 cm 150 cm x 120 cm In irrigated conditions, for clay soils wider spacing of 150 x 150 cm can also be adopted. For TMV 5 short duration variety 60 x 30 cm may be adopted. 5. APPLICATION OF FERTILIZERS Apply NPK fertilizers basally as per soil te...
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