Soil characterization of areas serviced by the Sta. Maria River Irrigation System (RIS), Laguna, Philippines

Date

5-2014

Degree

Bachelor of Science in Agricultural Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Rosa B. Delos Reyes

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

Soil characterization was done on areas serviced by the Sta. Maria River Irrigation System (RIS) in Laguna to provide baseline information that can be used in determining the best land use for sustained crop production, designing appropriate soil management systems and improving the current land situation. The soil?s physical and chemical properties used in the characterization were limited to soil texture, specific gravity, porosity, hydraulic conductivity soil pH and qualitative NPK. Soil samples were taken at 20 cm and 40 cm depth from eleven sampling sites that were randomly selected. Results of the study showed that 59% (575 hectares) of the area was found to have a soil texture of clay while the remaining 41% (399 hectares) with a soil texture of clay loam. The computed values of , and porosity matched the usual values for clay soils and soils with organic matter. Likewise, for hydraulic conductivity, the values ranged from 1 x 10-6 to 1 x 10-7 cm/s which was found to be within the range of values for clay type soils. It was also found that the soil is slightly acidic and contains low levels of nitrogen and phosphorus and deficient in potassium. This information showed that the area is suitable for its current land use as rice field. However, the soil pH and fertility should be improved in order to attain optimum and sustainable production.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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