THE CHARACTERISTICS OF SOILS AMENDED WITH DRANCO LIQUOR
Abstract
Jenis tanah yang digunakan dalam penelitian ini adalah Huldenberg (Light loamy). De Klinge (Sandy) dan Bonheiden (Sandy), sedang larutan Dranco berosal dari proses fermentasi anaerobik dengan substrat sampah kota. Tujuan penelitian ini adalah untuk mengetahui karak teristik tanah yang ditambahkan larutan Dranco, terutama tentang kemampuan larutan Dranco dalam mensmbilkan agregat tanah serta menekan intensitas. erosi. Selain itu diamati pula pengaruh penambahan larutan Dranco terhadap pertumbuhan tanaman serta daya survival tanaman tersebut dalam kondisi lingkungan yang kekeringan.
Hasil penelitian menunjukkan penambahan iarutan Dranco menyebabkan peningkatan “saturated hydraulic con ductivity" dua kali, penurunan “capillary rise” dan "horizontal infiltrotion'' yang menunjukkan indikasi agregat tanah yang lebih stabil terhadap penghancuran oleh.air. Selain itu juga diperlihatkan bahwa gerakan air diperlambat sehingga tanah akan menyimpan air lebih lama.
Pengaruh larutan Dranco yang sangat besar adalah terhadap stabilisasi agregat tanah. Untuk tanah "light loamy" stabilitasnya ditingkatkan sampai 3 kali, untuk "sandy” (clay 6%) sampai 10 kali dan “sandy” (clay 3%) sampai 40 kali. Selain itu, larutan Dranco menurunkan intensitas erosi, mempercepat pertumbuhan tanaman serta memperpanjang daya tahan tanaman dalam kekeringan.Full Text:
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DOI: https://doi.org/10.20886/jphh.1992.10.2.37%20-%20%2047
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