The Nutritional Value of Shrimp Waste and Its Response to Growth and N Uptake Efficiency by Corn

Today's agricultural development is expected to be able to optimize the utilization of agricultural waste resources to improve soil fertility and nutrient for plants, such as the utilization of shrimp waste. This research was conducted to test the level of improvement of the soil fertility and the efficiency of N uptake of corn by application of shrimp waste. The study was conducted using a randomized block design, consisting of five treatments divided as control and the addition of biochar, shrimp waste, urea, and biochar+shrimp waste. Analysis using orthogonal contrast with biochar and shrimp waste was classified as ameliorant, while urea, and biochar+S as fertilizer. The results showed that the application of biochar+S was able to increase soil pH (4.9 out of 4.3), N-total is 85, OC is 66.2, CEC is 1.5 times the initial CEC, plant height and number of leaves at 56 days respectively 225 cm and 13 sheets, and Nitrogen uptake efficiency around 24,8 with a dry shell yield of around 10.6 t ha-1. Biochar and biochar+S both increased P-available (4.8 out of 3.4 mg kg-1), whereas K-available increased in shrimp waste applications (88 of 46.1 mg kg-1)