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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agronomi Tanaman Tropika (JUATIKA)
Fitri Wijayanti
Universitas Pembangunan Nasional "Veteran" Jawa Timur
Agriculture, Biological Sciences & Forestry Engineering

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Analysis of Soil Fertility Status and Capability Based on Slope and Land Use Wahyu Riska Putri Ardila; Purwadi Purwadi; Fitri Wijayanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.361-371

Abstract

Declining soil fertility can be a major factor affecting soil productivity. Declining soil fertility can be caused by two factors, namely natural factors such as topography, and man made factors, such as land management. Assessment of soil fertility status is very important understand good soil fertility conditions that support agricultural and plantation activities. This study aims to determine the soil fertility status and the classification of soil fertility capability. This research was conducted through field survey on four land use units (LUUs) with 16 sampling points determined purposively. The obtained data were then combined to classify the level of status and ability of soil fertility using Fertility Capability Classification (FCC) method. The results showed that the overall LUUs have low fertility status criteria with base saturation (BS) as a heavy limiting factor, and potassium (K) and C-organic content as medium limiting factors. All LUUs, however, revealed almost the same FCC unit. Based on the FCC unit, soil fertility is constrained by some sandy texture soil types (S), with modifiers of acid soil reaction conditions (h), steep slopes (%), and some are constrained by low potassium (k).
Utilization of Subsurface Drainage to Reduce Salinity under Different Saline Soil Mixture Ratios and Their Effects on the Growth of Red Spinach (Amaranthus tricolor) Naufal Firwansyah Tristanto; Purwadi; Fitri Wijayanti
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4389

Abstract

Soil salinity is a significant limiting factor in plant growth, particularly in areas affected by salt accumulation. This study aims to analyze the effectiveness of underground drainage in reducing soil salinity through the leaching method and its impact on the growth of spinach (Amaranthus tricolor). The experiment involved applying saline soil mixtures at ratios of 25%, 50%, 75%, and 100% alongside non-saline soil while utilizing underground drainage to expedite the salt leaching process. The parameters observed included pH, electrical conductivity (EC), sodium (Na) content, and plant growth. Observations were conducted at 1, 10, 20, and 30 days, with three replications for each treatment. The results indicated that underground drainage significantly reduced soil salinity levels in a relatively short period. The decrease in salt concentration positively influenced spinach growth, particularly in treatments with lower saline soil mixture ratios. These findings suggest that underground drainage can serve as an effective solution to mitigate agricultural land salinity, thereby enhancing plant productivity.
Co-Authors Naufal Firwansyah Tristanto Purwadi Purwadi MP. Ir Wahyu Riska Putri Ardila