Tracking the fate of organic matter residue using soil dispersion ratio under intensive farming in red acid soil of Lampung, Indonesia

Naspendra, Zuldadan Tracking the fate of organic matter residue using soil dispersion ratio under intensive farming in red acid soil of Lampung, Indonesia. Proceeding Crop Production and Productivity. ISSN ISBN: 978-4-909365-04-0

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Abstract

Organic matter or compost which applied to the soil can improve soil physical properties, such as forming microaggregates and increasing soil water holding capacity. However, the effect and the sustainability in the soil depended on the type of organic matter origin and its composition as well as its environment. This study aims to determine the fate of organic material , which is mainly its composition from cowdung using simple tools, soil dispersion ratio (DR). A soil survey was done to the area with different land use and organic matter (compost) application . The area with no compost application (0 t ha-1 ) including in cassava, oil palm, and pineapple (3 locations), while area with banana and guava applied with compost around 50 t ha-1 - 100 t ha-1 and pineapple with 180 t ha-1 . The experiment showed that the soils were generally categorized as moderately to extremely dispersive, except cassava was little dispersive. Clay particles were mostly binded by organic material by the mechanism of cation brigde, and contributied >50% of clay aggregate form, and the highest one was in cassava

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