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Mega, M.
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Agriculture, Biological Sciences & Forestry

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Kajian Sebaran Humus, Alofan dan Senyawa Humus Kompleks Pada Tanah Andisol Kusmiyarti, Tati B.; Mega, M.; Dibia, N.; Widyarshana, D.O.
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 1, No 2 (2005)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v1i2.3119

Abstract

Humic substances (humus), allophanes and humus complexes are the soil component which have highly reactivity and give great contribution   on genesis and lead to presence  of specific chemical and physical properties of Andisols.  The study on humus, allophanes and humus complexes was conducted on Andisols in Tawangmangu Karanganyar District of Central Java and Bedugul, Tabanan District of Bali to observe the distribution of humus,  allophanes and humus complexes along the profile and the factor affected  its distribution. The result  showed  that the content of humus  complexes tend to decrease with the dept in accordance to the content of humus, on the contrary of the content of allophanes.  So the humus complexes are abundance on the upper layer whereas the allophanes on the lower layers of the profiles. By means of the regression calculation indicated  that both of the pH (H2O) of the soil and the content of humus are controlled the formation of humus complexes and I or allophanes along the profiles.
Co-Authors N. Dibia Tati Budi Kusmiyarti Widyarshana, D.O.