The effect of fertilizing residues on growth and yield of sweet corn

Abstract

The application of organic and inorganic fertilizers is an effort to meet the needs of plant nutrients. Fertilization that has been done in the previous planting season is very possible to provide fertilizer residues that can be used for the next planting season (Second Planting Season). The purpose of this study is to determine the effect of organic and inorganic fertilizer residues that have been applied to the planting of shallots in the first planting season to the growth and yield of sweet corn in the second planting season. The study was conducted from November 2018 to January 2019 on farmer land located in Kotarindau Village, Dolo District, Sigi Regency, Central Sulawesi. The study used a non Factorial Randomized Block Design (RBD) with 4 residual treatments from the fertilizing dose in the previous planting season (treatment packages A, B, C, and D). To determine the effect of fertilizing residues on the growth and yield of sweet corn was carried out by analysis of variance. If the results of variance were significantly different, then to compare between treatments was done with Duncans New Multiple Range Test (DNMRT) at 5% level. The results showed that the application of organic and inorganic fertilizers in the first planting season was proven to be able to meet the needs of plant nutrients in the second planting season for each fertilizer treatment given in first planting season. Package A fertilizer residue gives the highest result on the growth and yield components and is not significantly different from the other three fertilizer package residues.