Browsing UT - Soil Science and Land Resources by Author "Tobing, Ronni"
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Pengaruh Aplikasi Senyawa Humat Terhadap Sifat Kimia Tanah Vertisol dan Pertumbuhan Tanaman Jagung (Zea mays).
Tobing, Ronni (2009)Vertisol is one of the potential soil type that can be used for agriculture activity intensively. This soil has high pH, cation exchange capacity (CEC), and base saturation percentage, but it has high potassium fixation ...