Studi Korelasi K pada Tanah Ultisol untuk Tanaman Bawang Merah (Allium ascalonicum L.)

Authors

  • Indarti Puji Lestari Program Studi Agronomi dan Hortikultura, Sekolah Pascasarjana, Institut Pertanian Bogor
  • Anas D. Susila Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor
  • Atang Sutandi Departemen Manajemen Sumberdaya Lahan, Fakultas Pertanian, Institut Pertanian Bogor
  • Dedi Nursyamsi Balai Besar Sumber Daya Lahan Pertanian

DOI:

https://doi.org/10.29244/jhi.11.1.41-50

Abstract

Determination of soil nutrient contents requires an appropriate extraction method between the desired soil and plants. The objective of the study was to determine the best soil K extraction method for shallot in Ultisol with a single location approach. The study was carried out in Lebak, Banten Province during March 2015 until May 2016, with two stages, namely manufacture soil K nutrient status and K correlation test through planting in a greenhouse. The manufacture of soil K nutrient status consisted of very low to very high (0X, 1/4X, 1/2X, 3/4X, and X), the value of X represents the highest value of K nutrient absoprtion, equal to 509.6 kg K2O ha-1. On this stage, K fertilizer was incubated for three months, followed by taking soil samples in each plot to analyze the soil K contents. The soil K content was analyzed by using five types of extraction methods, namely Bray I (solution 0.025 N HCl + NH4F 0.03 N), Bray II (NH4F 0.03 N + HCl 0.10 N), Mechlich I (0.0125 M H2SO4 + 0.05 M HCl), HCl 25% and Olsen (NaHCO3 0.5 M, pH 8.5). The K correlation test was carried out in a greenhouse by using a Completely Randomized Design (RAL) with five replications. The results showed that manufacture soil K nutrient status increased K levels in the soil with the indicators of canopy dry weight which giving a quadratic response pattern. The best soil K nutrient extraction method for shallot on the Ultisol soil is Mechlich I, with correlation coefficient value of 0.77. The results of this study can be used for the determination of K fertilization recommendation on shallot in Ultisol soil.

Keywords: K nutrient status, K extractant, K fertilization dose

Downloads

Download data is not yet available.

Downloads

Published

2020-04-30

Issue

Vol. 11 No. 1 (2020): Jurnal Hortikultura Indonesia

Section

Articles

License

You are free to:

  1. Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
  2. Adapt — remix, transform, and build upon the material for any purpose, even commercially.
  3. The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  1. Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  2. ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  3. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices:

You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.

No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

How to Cite

Studi Korelasi K pada Tanah Ultisol untuk Tanaman Bawang Merah (Allium ascalonicum L.). (2020). Jurnal Hortikultura Indonesia (JHI), 11(1), 41-50. https://doi.org/10.29244/jhi.11.1.41-50