Response and Allelochemicals Content of Two Sorghum Varieties to Manure

Sweet sorghum can be used to support the needs of food, feed, and energy. The specific objectives are to determine the performance of different varieties of sorghum, to determine the best dose of manure for growing sorghum, and to study the interaction between combined fertilizer and varieties of sorghum in coastal land. Research was arranged in randomized factorial design with three replications. The first factor consisted of two varieties of sorghum includes Numbu, and Kawali, and the second factor is combination of fertilizers consisted of solid cow manure 10 ton ha −1 + ½ of recommended dose of mineral fertilizer, cow’s urine (200 ml urine in 15 L of water) + ½ dose of recommended dose of mineral fertilizer, and mineral fertilizers as recommended dose (120 kg ha −1 of Urea, 90 kg ha −1 of superphosphate, and 60 kg ha −1 of KCl). The results showed that the best preformance on growth and yield was obseved on Kawali with fertilization using solid cow manure 10 ton ha −1 + ½ of recommended dose of mineral fertilizer. Results of sorghum root analysis with GCMS showed results that Numbu and Kawali detected hydroquinone and resorcinol as intermediate compounds Sorgoleone potential as bioherbicides