Sweet Sorghum and Nitrogen Fertilizer Application – A Review

Oluwatoyin Olugbemi


Sweet sorghum is similar to the grain sorghum in every respect but with the added feature of accumulating sugar in its stalk, just like sugarcane, which has given the crop the ability to qualify as an energy crop. There has been a growing trend in the global interest in renewable energy sources as a result of the ever growing concern for the environment. In order to meet the increasing demand for energy crops, there is the need to boost their productivity, especially through optimum agronomic management practices. Nitrogen fertilizer is an important nutrient in crop productivity which has widely been reported to affect the productivity of sweet sorghum. The required application rates have been found to vary across seasons and location, and are also affected by the factors of the climate, soil type and genotype. Studies have however shown that the nitrogen fertilizer rate in the range of 60 and 120 kg N ha-1 would result in optimum productivity depending on the location, the soil type and the native N of the soil determined through soil test.

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