The Effect of Humic Acid on Shallots Growth and Yield In Brebes

Sri Wahyuni; Hana  Fadila; Muhammad Abdul  Aziz; Valdi Muhammad Rafiansyah  Siregar; Fauziatul  Fitriyah; Soekarno Mismana  Putra; Poppy  Arisanty; Sulastri Sulastri; Insyiah Meida  Luktyansyah; Priyono Priyono; Siswanto Siswanto

doi:10.18343/jipi.31.1.151

Authors

Sri Wahyuni Palm Oil Research Center, Bogor 16128, Indonesia
Hana Fadila Palm Oil Research Center, Bogor 16128, Indonesia
Muhammad Abdul Aziz Palm Oil Research Center, Bogor 16128, Indonesia
Valdi Muhammad Rafiansyah Siregar Palm Oil Research Center, Bogor 16128, Indonesia
Fauziatul Fitriyah Palm Oil Research Center, Bogor 16128, Indonesia
Soekarno Mismana Putra Palm Oil Research Center, Bogor 16128, Indonesia
Poppy Arisanty Palm Oil Research Center, Bogor 16128, Indonesia
Sulastri Sulastri RnD Division, PT Pupuk Kalimantan Timur, Bontang 75313, Indonesia
Insyiah Meida Luktyansyah RnD Division, PT Pupuk Kalimantan Timur, Bontang 75313, Indonesia
Priyono Priyono Palm Oil Research Center, Bogor 16128, Indonesia
Siswanto Siswanto Palm Oil Research Center, Bogor 16128, Indonesia

DOI:

https://doi.org/10.18343/jipi.31.1.151

Keywords:

coating, fertilization effectiveness, foliar spray

Abstract

The effectiveness of humic acid application in increasing shallot yields for farmers must be studied, particularly in terms of quality and quantity. It is also consistent with the relatively high consumption and public demand for shallots year after year. The purpose of this study was to examine how humic acid spraying affects shallot growth and production. Humic acid was applied in two stages: fertilizer coating and foliar spray, with varying treatment dosages. Field testing was conducted in two trials. The initial test revealed that the treatment plants grew faster than the control plants, potentially increasing yields by 7−15%. The validation test (second test) with three treatments yielded the same results: treatment plants outgrew the control specimen, increasing yields by 20−25%. Based on these findings, the use of humic acid may be an alternative for enhancing the agricultural industry, particularly in shallots.

Keywords: coating, fertilization effectiveness, foliar spray

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