Lateritic soils of Peninsular Malaysia

Paramananthan, S.; Tharmarajan, M.

doi:10.7186/bgsm16198308

Cited by 14 publications

(21 citation statements)

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“…The selected chemical properties of the soil are summarized in Table 1 . The soil pH, total N, and total C were consistent with those reported for Bekenu Series [ 24 ]. The exchangeable Ca, Mg, and K in this study were higher than the reported values [ 24 ].…”

Section: Methodssupporting

confidence: 86%

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Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes

Omar

Ahmed

Majid

2015

The Scientific World Journal

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Improper use of urea may cause environmental pollution through NH3 volatilization and NO3 − leaching from urea. Clinoptilolite zeolite and compost could be used to control N loss from urea by controlling NH4 + and NO3 − release from urea. Soil incubation and leaching experiments were conducted to determine the effects of clinoptilolite zeolite and compost on controlling NH4 + and NO3 − losses from urea. Bekenu Series soil (Typic Paleudults) was incubated for 30, 60, and 90 days. A soil leaching experiment was conducted for 30 days. Urea amended with clinoptilolite zeolite and compost significantly reduced NH4 + and NO3 − release from urea (soil incubation study) compared with urea alone, thus reducing leaching of these ions. Ammonium and NO3 − leaching losses during the 30 days of the leaching experiment were highest in urea alone compared with urea with clinoptilolite zeolite and compost treatments. At 30 days of the leaching experiment, NH4 + retention in soil with urea amended with clinoptilolite zeolite and compost was better than that with urea alone. These observations were because of the high pH, CEC, and other chemical properties of clinoptilolite zeolite and compost. Urea can be amended with clinoptilolite zeolite and compost to improve NH4 + and NO3 − release from urea.

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Section: Methodssupporting

confidence: 86%

“… Note . * Standard data range reported by Paramananthan [ 24 ]; nd = not determined. Values in parenthesis represent standard error of the mean.…”

Section: Figurementioning

confidence: 99%

Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes

Omar

Ahmed

Majid

2015

The Scientific World Journal

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“…Total titratable acidity was determined using acid-base titration method [ 33 ]. The selected chemical and physical properties of the soil ( Table 1 ) used in this study are typical of Typic Paleudults (Bekenu series) and they are consistent with those reported by Paramananthan [ 34 ] except for CEC, exchangeable calcium, and magnesium.…”

Section: Methodssupporting

confidence: 85%

Improving Lowland Rice (O. sativa L. cv. MR219) Plant Growth Variables, Nutrients Uptake, and Nutrients Recovery Using Crude Humic Substances

Palanivell

Ahmed

Majid

et al. 2015

The Scientific World Journal

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High cation exchange capacity and organic matter content of crude humic substances from compost could be exploited to reduce ammonia loss from urea and to as well improve rice growth and soil chemical properties for efficient nutrients utilization in lowland rice cultivation. Close-dynamic air flow system was used to determine the effects of crude humic substances on ammonia volatilization. A pot experiment was conducted to determine the effects of crude humic substances on rice plant growth, nutrients uptake, nutrients recovery, and soil chemical properties using an acid soil mixed with three rates of crude humic substances (20, 40, and 60 g pot−1). Standard procedures were used to evaluate rice plant dry matter production, nutrients uptake, nutrients recovery, and soil chemical properties. Application of crude humic substances increased ammonia volatilization. However, the lowest rate of crude humic substances (20 g pot−1) significantly improved total dry matter, nutrients uptake, nutrients recovery, and soil nutrients availability compared with crude humic substances (40 and 60 g pot−1) and the normal fertilization. Apart from improving growth of rice plants, crude humic substances can be used to ameliorate acid soils in rice cultivation. The findings of this study are being validated in our ongoing field trials.

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“…The types of soil within a radius of approximately 100 km from the mill are assumed to have an influence on the quality of the FFB obtained from different plantation areas. Table 6 tabulates all the types of soil and their classification obtained through Paramananthan [35]. Although there is a variation in the dominant type of soil present in each state, generally they are fine clayey, fine loamy or fine silty.…”

Section: Resultsmentioning

confidence: 99%

Feasibility Studies of Palm Oil Mill Waste Aggregates for the Construction Industry

et al. 2015

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The agricultural industry in Malaysia has grown rapidly over the years. Palm oil clinker (POC) is a byproduct obtained from the palm oil industry. Its lightweight properties allows for its utilization as an aggregate, while in powder form as a filler material in concrete. POC specimens obtained throughout each state in Malaysia were investigated to evaluate the physical, chemical, and microstructure characteristics. Variations between each state were determined and their possible contributory factors were assessed. POC were incorporated as a replacement material for aggregates and their engineering characteristics were ascertained. Almost 7% of density was reduced with the introduction of POC as aggregates. A sustainability assessment was made through greenhouse gas emission (GHG) and cost factor analyses to determine the contribution of the addition of POC to the construction industry. Addition of POC helps to lower the GHG emission by 9.6% compared to control specimens. By channeling this waste into the construction industry, an efficient waste-management system can be promoted; thus, creating a cleaner environment. This study is also expected to offer some guides and directions for upcoming research works on the incorporation of POC.

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Lateritic soils of Peninsular Malaysia

Cited by 14 publications

References 0 publications

Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes

Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes

Improving Lowland Rice (O. sativa L. cv. MR219) Plant Growth Variables, Nutrients Uptake, and Nutrients Recovery Using Crude Humic Substances

Feasibility Studies of Palm Oil Mill Waste Aggregates for the Construction Industry

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