Author
Nurdin
Subject
- Pertanian
Abstract
Rainfed paddy soils that are derived from lacustrine and include of E4 agroclimatic zone have many unique properties
and potentially for paddy and corn plantations. This sreseach was aimed to: (1) study the soil development of
rainfed paddy soils derived from lacustrine and (2) evaluate rainfed paddy soils potency for paddy and corn in
Paguyaman. Soil samples were taken from three profiles according to toposequent, and they were analyzed in
laboratory. Data were analyzed with descriptive-quantitative analysis. Furthermore, assessment on rainfed paddy
soils potency was conducted with land suitability analysis using parametric approach. Results indicate that all
pedon had evolved with B horizons structurization. However, pedon located on the summit slope was more developed
and intensely weathered than those of the shoulder and foot slopes.The main pedogenesis in all pedons were through
elluviation, illuviation, lessivage, pedoturbation, and gleization processes. The main factors of pedogenesis were
climate, age (time) and topography factors. Therefore, P1 pedons are classified as Ustic Endoaquerts, fine, smectitic,
isohypertermic; P2 as Vertic Endoaquepts, fine, smectitic, isohypertermic; and P3 as Vertic Epiaquepts, fine, smectitic,
isohypertermic. Based on the potentials of the land, the highest of land suitability class (LSC) of land utilization
type (LUT) local paddy was highly suitable (S1), the lowest one was not suitable with nutrient availability as
the limiting factor (Nna). The highest LCS of paddy-corn LUT was marginally suitable with water availability as
the limiting factor (S3wa), the lower LSC was not suitable with nutrient availabily as the limiting factor
(Nna)
Publisher
Journal of Tropical Soils, Teindeks Sinta 2
Contributor
Nurdin
Publish
2011
Material Type
ARTIKEL
Right
ISSN 0852-257X
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