Reducing the dosage of inorganic fertilizer on purple corn plants with application of liquid organic fertilizer

ABSTRACT

The antioxidant content in purple corn makes this type of corn can be used as a food crop and is important for cultivation during the Covid-19 pandemic. One of the factors that must be considered in cultivation activities is nutrients. Continuous application of inorganic fertilizers without the addition of organic fertilizers can reduce soil quality. Improvement of soil quality can be done by adding organic matter, one of which is liquid organic fertilizer. The research design used was a Randomized Block Design (RAK) with 5 treatments in the form of reducing the dose of inorganic fertilizer with levels of 100% (control), 75%, 50%, 25% and 0% of the dose of inorganic fertilizer. Data analysis used variance and continued with the BNJ test (Tukey Advanced Test). The results showed that reducing the dose of inorganic fertilizer by adding BMW liquid organic fertilizer to purple corn had a significant effect on the variable number of leaves, cob length, cob diameter and production. The application of BMW liquid organic fertilizer on purple corn plants was able to reduce 25% use of inorganic fertilizers.