Afandi, . and Yusnaini, Sri and Banuwa, Irwan Sukri and Dimas, Pranata Gama (2022) THE EFFECT OF HUMIC ACID APPLICATIOAN ON THE DISPERSION RATIO AND HOLDING CAPACITY OF GROUND WATER IN ULTISOL SOIL AT PT GREAT GIANT PINEAPPLE (GGP) LAMPUNG TENGAH. Jurnal Agrotek Tropika, 10 (2). pp. 269-277. ISSN 2337-4993

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Abstract

Ultisol is a type of soil that is widespread in Indonesia so that Ultisol has great potential for the development of dry land agriculture. Soil dispersion can affect soil and plants. One of the organic materials that can be used to improve the physical properties of Ultisol soil is humic acid. Humic acid is an organic compound that changes the humification process and dissolves in alkalis. This study discusses the benefits of humic acid on the dispersion ratio and soil water resistance. The humic acid used in this study was Actagro Liquid Humus with 4% potassium oxide composition, and 22% isonardite derivative organic acid. The study was conducted at PT Great Giant Pineapple (GGP) pineapple plantation, Terbanggi Besar Subdistrict, Central Lampung Regency, Lampung Province. The design used in this study was a Completely Randomized Design (CRD) with 17 experimental preparations and repeated 3 times to obtain 51 sample unit experiments. Observation variables were using dispersion ratio analysis (using the Hydrometer method), microaggregate distribution of soil water resistance (using the pF method), soil water content, and soil strength. The results showed that the application of humic acid did not affect the dispersion ratio, microaggregate distribution and water holding capacity. However, the application of humic acid could not increase the ratio of soil ratios and endurance on Ultisol land in PT Great Giant Pineapple, Central Lampung.

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Agroteknolgi
Depositing User: Prof. Dr. Sri Yusnaini
Date Deposited: 14 Jul 2022 09:07
Last Modified: 14 Jul 2022 09:07
URI: http://repository.lppm.unila.ac.id/id/eprint/43319

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