Pengaturan Keseimbangan Nitrogen dan Magnesium untuk Meningkatkan Pertumbuhan dan Produksi Jagung (Zea Mays L.)

Damanhuri, Damanhuri and Wahyu Widodo, Tirto and Fauzi, Ahmad (2022) Pengaturan Keseimbangan Nitrogen dan Magnesium untuk Meningkatkan Pertumbuhan dan Produksi Jagung (Zea Mays L.). Jurnal Ilmiah Inovasi, 22 (1). pp. 10-15. ISSN 2527-6220

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Abstract

Nutrient imbalance in corn cultivation is one of the causes of low corn growth and production. This study aims to identify the balance of nitrogen and magnesium to increase corn growth and production. This research was conducted in field of Politeknik Negeri Jember from March to June 2021. The experimental design was arranged using a factorial randomized block design consisting of nitrogen and magnesium dose and repeated 3 times. The nitrogen dose (Urea) consisted of 5 levels, namely 200 kg. ha-1, 280 kg. ha-1, 360 kg. ha-1, 450 kg. ha-1, and 550 kg. ha-1, while magnesium dose (MgCO3) consisted of 5 levels, namely 80 kg. ha-1, 90 kg. ha-1, 96 kg. ha-1, 107 kg. ha-1, and 114 kg. ha-1. The results showed that application of 360 kg. ha-1 urea gave the best effect on the growth of corn plants, namely plant height (212.1 cm) and chlorophyll content (635.6 µmol/cm2). While the application of 96 kg. ha-1 MgCO3 also showed the best effect on plant height (210.6 cm). The nutrient balance of Mg and N was 27 kg Mg. ha-1 and 165 kg N. ha-1 (ratio 1:6) gave the best effect on the growth of corn.

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