A proper supply of nitrogen is essential for optimal leaf growth, promotes branching, seed set, and filling, Deficiency will result in poor growth, light green plants, poor branching, or poor seed arrangement, Nitrogen recommendations vary by region and cultivation system. Since Castor is grown in the country as both rainfed and irrigated crops, the response of applied N varies in rainfed and irrigated conditions. The response in rainfed farming areas varies with rainfall and distribution. Topdressing with an additional 20 kg N/ hectare in 35-40 and 65-70 days after sowing gives an excellent economic response after using 20 kg N / hectare as basal feed for rain-fed Castor. In addition to the basic dose of 40 kg N/hectare, irrigated Castor for more than 180 days requires additional N by 20 kg/hectare at each successive picking starting from 90 days or harvest the first order spike, i.e., at intervals of 30 days. Avoid higher N levels than recommended as this can result in excessive plant growth and weakening of the root system. For both rainfed and irrigated crops, nitrogen fertilizer should be applied in continuous bands at 5-6 cm/depth and a distance of 5-7 cm from the crop row.
How Nitrogen plays a crucial role in castor crop?
