Provision of NPK Fertilizer (21-21-21) on Corn Growth and Yield (Zea mays L.)
E. Fidiyawati (1)*, Sugiono (1), Nurul Istiqomah (1), Evy Latifah (1), Zainal Arifin (1)

(1) National Research and Innovation Agency
Cibinong Science Centre, Bogor, West Java -Indonesia
* kagakunoriteni[at]gmail.com

Abstract

Fertilization is one of the main factors determining the success of corn cultivation in addition to superior varieties. The use of fertilizers must be made to be effective and efficient, so as to increase production optimally while increasing farmers^ income and not polluting the environment. This study aims to determine the effect of NPK fertilizer (21-21-21) on the growth and yield of maize. The study was carried out in Watugede Village, Puncu District, Kediri Regency, from October 2020 - March 2021. The study used a Randomized Block Design (RAK) 7 treatments with 4 replications, namely based on a combination of NPK fertilizer (21-21-21), comparison of recommended fertilizer doses , without fertilizer. The results showed that the dose of NPK (21-21-21) 200 + Urea 200 + ZA 100 kg/ha had a significant effect on maize plant growth and biomass weight. The production of jugung was significant at this dose in the results of wet log weight and dry shelled yields. It is necessary to carry out a similar study but in locations that have different agroecology because corn is widely cultivated in Indonesia, so that production is high with lower fertilizer inputs

Keywords: yield, corn, growth, fertilization

Topic: Agriculture Productivity