Application of humic acid supplemented with micronutrient increase rice production

  • Valdi Muhamad Rafiansyah Siregar Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Soekarno Mismana Putra Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Muhammad Abdul Aziz Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Hana Fadila Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Poppy Arisandy Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Sri Wahyuni Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Priyono Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Insyiah Meida Luktyansyah PT Pupuk Kalimantan Timur, Jl. James Simandjuntak No.1, Bontang 75313, East Kalimantan, INDONESIA
  • Sulastri PT Pupuk Kalimantan Timur, Jl. James Simandjuntak No.1, Bontang 75313, East Kalimantan, INDONESIA
  • Rizky Nugraha Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Mira Maulidina Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA
  • Siswanto Indonesia Oil Palm Research Institute, Jl. Taman Kencana No.1, Bogor 16128, West Java, INDONESIA

Abstract

Fertilizer is one of the crucial inputs to maximize nutrients needed by plants, especially rice. However, insufficient ameliorant application may affect the fertilizers' effectiveness. Humic acid is believed as one of the ameliorants to improve soil conditions resulting in higher nutrient availability. The study aimed to evaluate the effect of combining humic acid and micronutrients on growth, production, and nutrient contents in rice. Three treatments were applied, i.e., control (without humic acid), humic acid, and humic acid + micronutrients. The result showed that both humic acid treatments produced the highest number of tillers, humic acid application solely stimulated the highest root length, and humic acid + micronutrients stimulated the highest plant height, and fresh and dry biomass weight. Grain weight was not affected by treatments, but humic acid + micronutrients gave a higher weight of milled grain and number of filled grains. Humic acid application solely resulted in plant biomass and grains having higher N, P, and K contents. Overall, the application of humic acid + micronutrients is recommended to increase rice production.

Keywords: ameliorant; fertilizer; nutrient availability; nutrient uptake

Published
2023-12-28
How to Cite
SiregarV. M. R., Soekarno Mismana Putra, Muhammad Abdul Aziz, Hana Fadila, Poppy Arisandy, Sri Wahyuni, Priyono, Insyiah Meida Luktyansyah, Sulastri, Rizky Nugraha, Mira Maulidina, & Siswanto. (2023). Application of humic acid supplemented with micronutrient increase rice production. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy), 51(3), 366-377. https://doi.org/10.24831/jai.v51i3.46904