Nutrition management on irrigated rice fields to increase maize productivity

Abstract

Balanced fertilization is the main key to increase maize productivity. This paper aims to evaluate the recommendations of fertilizing N, P and K on the growth and production of maize on irrigated paddy fields. The study was conducted in three provinces of Lampung, Banten and Central Java. The experiment was carried out using a randomized block design with incomplete factorial. The number of treatments was 12 and each had 3 replications. Fertilization treatments were 4 levels of each N, P and K included Urea (0, 150, 300, 450 kg ha−1), SP-36 (0, 100, 200, 300 kg ha−1) and KCl (0, 50, 100, and 150 kg ha−1). The results showed that the yield of dry shelled maize for the three locations was obtained from a combination of fertilizer treatment with Urea fertilizer doses of 450 kg ha−1, SP-36 200 kg ha−1, and KCl 100 kg ha−1, with the respective results for the Lampung 7.77 t ha−1, Banten 7.58 t ha−1, and Central Java 7.67 t ha−1. Fertilization of N and K affected the increased stover weight and dry weight of maize kernels in Lampung, Banten, and Central Java. Meanwhile, P fertilization could not increase the stover weight and yield of maize.