Assessment of atterberg limits and levels of nitrogen, phosphorus and potassium of landslide affected soils in New Bataan, Compostela Valley Province, Philippines

Date

6-2016

Degree

Bachelor of Science in Agriculture

Major Course

Major in Soil Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Nicole Louise Timbas

Abstract

The study was conducted to determine selected physical properties and nutrient levels of soils affected by landslides and other hazards caused by typhoon Bopha in New Bataan, Compostela Valley. Five pedons were selected from five barangays that were severely hit by the hazards. Morphological characteristics of the pedons were described in situ. Samples were taken from each soil horizon to determine the soil texture and atterber limits of the five pedons. Nutrient levels were analyzed using STK. Soils located at lower elevations and flat terrain (Pedons 2, 3 and 4) showed deeper soil profiles compared with those at higher elevations and rolling terrain (Pedon 1 and Pedon 5). Higher clay contents were obtained from Pedons 1 and 5 while sand and silt fractions were higher in Pedons 2, 3 and 4. Soils at lower elevations (Pedons 2, 3 and 4) showed lower liquid and plastic limits. All the pedons had very low NPK levels. Debris from the landslide buried the inherently fertile soil of floodplains causing a decline in the nutrient status of the soil. Application of inorganic and organic fertilizers with proper management should be done to improve the fertility of these soils. Furthermore, conservation practices should be applied at the mountainous areas to prevent the repeat of the 2012 catastrophe in Compostela Valley.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2016 A3 /M38

Document Type

Thesis

This document is currently not available here.

Share

COinS