CD Skripsi

Sifat Kimia Tanah Dystrudepts Di Bawah Tegakan Kelapa Sawit (Elaeis Guineensis Jacq.) Yang Diberi Kombinasi Pupuk Polyhalite Dengan Pupuk KCl

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Oil palm (Elaeis guineensis Jacq.) is one of the most widely cultivated plantation crops in Indonesia. Due to the annual expansion of oil palm plantations, suitable land for cultivation has become increasingly scarce. As a result, plantation development is increasingly taking place on suboptimal lands, such as sandy soils (Dystrudepts). Dystrudepts are characterized by sandy texture, low pH, and low levels of K-dd, C-organic, N-total, P-total, Mg-dd, Ca-dd, Na-dd, CEC, and BS, which adversely affect nutrient availability. To optimize oil palm growth on these soils, it is necessary to improve their chemical properties through fertilization with slow-release fertilizers and KCl. This study aims to evaluate the effects of various combinations of Polyhalite and KCl fertilizer doses on the chemical properties of Dystrudepts soil under oil palm plantations. The research was conducted in an oil palm plantation in Petapahan Village, Riau Province, from October 2023 to January 2024. A Completely Randomized Design (CRD) was used with five treatment levels: NPK 3.3kg, Polyhalite 2kg + KCl 1.4kg, Polyhalite 4.1kg + KCl 1kg, Polyhalite 6.1kg + KCl 0.5kg, and Polyhalite 8.1kg. The observed variables included pH, C-organic, N-total, P-total, S-total, exchangeable bases (K, Ca, Mg, Na), CEC, and BS. The results indicated that no significant differences were found between the fertilizer combinations for all parameters at depths of 0-30 cm and 30-60 cm. However, the combination of Polyhalite 2kg + KCl 1.4kg proved to be the most effective treatment, significantly increasing soil pH, C-organic, S-total, and Ca-dd at a depth of 30-60 cm.


Keywords: suboptimal lands, sandy texture, soil, potassium chloride

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2006134990

Penerbit

Pekanbaru : Universitas Riau - F. Pertanian - Agroteknologi., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2006134990

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Agroteknologi

Info Detail Spesifik

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Pernyataan Tanggungjawab

Vina

Versi lain/terkait

Lampiran Berkas

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