Nutrition management on irrigated rice fields to increase maize productivity

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.