Effects of compost and phosphorus on growth and yield of sweet corn (Zea mays saccharata)

Sweet corn is an important crop with high economic value but lower productivity is not fulfilling the current requirement which could be attained by optimizing plant fertilizer. This study was conducted during the wet season of 2020 at Faculty of Agriculture, Universitas Padjadjaran, Indonesia to find out the effect of compost and phosphate dosage on growth and yields of sweet corn. The experiment was laid out in factorial Randomized Block Design with with first factor as compost dosage in three levels (K = 20, K₂ = 40 and K₃ = 60 t/ha) and the second factor phosphorus dosage in four levels (P_: = 15, P₂ = 45, P₃ = 75 and P₄ = 105 kg/ha). The results showed that there was no interaction between compost and phosphorus dosages on growth and yield of sweet corn cv. ‘Bisi Sweet’. The application of 60 t/ha compost increased the weight of corn cobs per plant (397.08 g) and also increased the corn cob diameter (5.12 cm). The application of phosphorus 75 kg/ha increased the weight of corn cob per plant (390.00 g). Therefore, compost and phosphorus are needed for sweet corn to improve plant growth and yield.