Update Artikelilmiah: 49972

TEGAR MUHAMAD YUSUF

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Abstrak (Bhs. Indonesia)

Pengolahan tanah menggunakan traktor roda 2 dapat meningkatkan efisiensi kerja, namun juga dapat menyebabkan pemadatan tanah yang berdampak buruk pada sifat fisik tanah dan pertumbuhan tanaman. Tekanan angin pada roda traktor roda 2 dapat memengaruhi tingkat pemadatan, porositas, dan kadar air tanah. Penelitian ini bertujuan untuk mengkaji pengaruh perbedaan tekanan angin roda traktor roda dua terhadap pemadatan tanah pada kedalaman 0 – 50 cm pada saat 12 dengan 6 dan 0 bulan pengamatan.Penelitian dilaksanakan di lahan pertanian Usaha Pelayanan Jasa Alsintan (UPJA) Kecamatan Sokaraja, Laboratorium Terpadu 1 IAB, dan Laboratorium Tanah BPSIP Yogyakarta. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) dengan satu faktor/perlakuan dan satu kontrol sebagai pembanding. Perlakuan yang diberikan yaitu 4 tingkat tekanan angin roda traktor roda 2: tanpa perlintasan traktor (T0), 7 psi (T7), 10 psi (T10), dan 12 psi (T12). Sampel tanah tidak terganggu diambil pada kedalaman 0 – 10, 10 –20, 20 – 30, 30 – 40, dan 40 – 50 cm. Variabel sifat fisik tanah yang diukur yaitu konduktivitas hidrolik jenuh, dry bulk density, wet bulk density, porositas tanah, dan kadar air tanah. Analisis data menggunakan Analysis of Variance (ANOVA) dengan uji lanjut menggunakan uji Duncan’s Multiple Range Test (DMRT) 5% dan analisis regresi.Hasil penelitian menunjukkan bahwa peningkatan tekanan angin roda traktor roda 2 menghasilkan peningkatan nilai dry bulk density, serta penurunan nilai porositas, kadar air, dan konduktivitas hidrolik jenuh. Sementara itu, peningkatan kedalaman tanah menghasilkan penurunan nilai dry bulk density, serta peningkatan nilai porositas, kadar air, dan konduktivitas hidrolik jenuh. Apabila dibandingkan terhadap data 6 dan 0 bulan pengamatan setelah perlintasan traktor, data 12 bulan pengamatan menunjukkan bahwa nilai dry bulk density mengalami peningkatan, sedangkan nilai porositas, kadar air, dan konduktivitas hidrolik jenuh mengalami penurunan.

Abtrak (Bhs. Inggris)

Soil cultivation using two-wheel tractors can increase work efficiency, but it can also cause soil compaction, which has a negative impact on soil physical properties and plant growth. The air pressure on the wheels of two-wheel tractors can affect the level of compaction, porosity, and soil moisture content. This study aims to examine the effect of differences in the air pressure of two-wheel tractors on soil compaction at a depth of 0–50 cm at 12, 6, and 0 months of observation.The research was conducted on agricultural land belonging to the Agricultural Machinery Service Business (UPJA) in Sokaraja District, Integrated Laboratory 1 IAB, and the Soil Laboratory of BPSIP Yogyakarta. The study employed a Completely Randomized 3Design (CRD) with one factor/treatment and one control as a comparison. The treatments applied were four levels of tractor tire pressure for a two-wheel tractor: no tractor passage (T0), 7 psi (T7), 10 psi (T10), and 12 psi (T12). Undisturbed soil samples were collected at depths of 0–10, 10–20, 20–30, 30–40, and 40–50 cm. The physical properties of the soil measured included saturated hydraulic conductivity, dry bulk density, wet bulk density, soil porosity, and soil moisture content. Data analysis was performed using Analysis of Variance (ANOVA) with post-hoc tests using Duncan’s Multiple Range Test (DMRT) at 5% and regression analysis.The results of the study indicate that an increase in wind pressure on the wheels of a two-wheeled tractor results in an increase in dry bulk density, as well as a decrease in porosity, moisture content, and saturated hydraulic conductivity. Meanwhile, an increase in soil depth results in a decrease in dry bulk density, as well as an increase in porosity, moisture content, and saturated hydraulic conductivity. When compared to data from 6 and 0 months of observation after tractor passage, data from 12 months of observation show that dry bulk density values increase, while porosity, moisture content, and saturated hydraulic conductivity values decrease.

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