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- W148706021 abstract "Cultivated and uncultivated soils along the footslopes of Mt. Hibok-Hibokvolcano, down to the nearby coastal areas were examined to assess the effectsof cultivation on their chemical fertility characteristics. Some selected soils wereincubated for 9 months with natural amendments (calcium silicate, groundbasaltic pyroclastics, and peat) to determine whether addition of these materialscan improve soil surface charge properties, particularly point of zero charge(pH,) and cation exchange capacity (CEC). Effects of adding the amendmentmaterials on plant growth were investigated with maize as test crop in aglasshouse experiment. The results showed that cultivated soils have lower % organic carbon (O.C)content and subsequently lower CEC compared to the uncultivated ones.Cultivation also raised pH,. Adding peat reduced pH increased the CEC, andimproved their ion retention. Adding basaltic pyroclastics showed promise toimprove the charge properties of the soils but as an amendment material, alonger incubation time was needed to detect some influence on the soil. Calciumsilicate, on the other hand, gave an extremely high pH, and pH. The high valueswere presumably because the rate applied was too high, which resulted in silicicacid precipitation. Plant response to the amendments (peat and basaltpyroclastics) showed that nutrient uptake was positively related to an improvedion retention of the soils. It also showed that relative heights and weights werelinearly correlated with cations concentration in the soil solution." @default.
- W148706021 created "2016-06-24" @default.
- W148706021 creator A5018375653 @default.
- W148706021 date "2000-06-01" @default.
- W148706021 modified "2023-09-26" @default.
- W148706021 title "Amelioration of Volcanic Soils from Camiguin Island (Southern Philippines) Using Natural Amendments" @default.
- W148706021 hasPublicationYear "2000" @default.
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