Validation of a developed plant test kit for the assessment of the nutrient status of lakatan (Musa acuminata linn)

Date

10-2007

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Veronica P. Migo

Co-adviser

Josefina L. Solivas

Abstract

TAMAGOS, KAREN CHRISTIE P. College of Arts and Sciences, University of the Philippines Los Banos. October 2007. Validation of a developed plant test kit (PTK) for the assessment of the nutrient status of lakatan (Musa acuminala lion)

Adviser: Dr. Veronica P. Migo

Co-adviser: Prof. Josefina L. Solivas

A plant test kit developed by Dayag (2006) for the NPK analysis of banana sap was validated in actual field experiments using different fertilizer treatments. The following methods were used: diphenylamine test for nitrates, stannous chloride method for phosphates, and sodium cobaltinitrite method for potassium. The 4 fertilizer treatments were: 100% RF(Recommended Fertilizer), 100% RF + mulch, 25%RF + BF(Biofertilizer), and 25% RF + BF + mulch.

The results from the rapid tield test (using the plant test kit) were compared to the conventional laboratory methods. The nitrate and potassium content of the banana sap using the rapid test and laboratory methods were not significantly different for all fertilizer treatments using t-test (a = 0.05). However, the results for phosphorus showed otherwise.

The sensitivity, limit of detection (LOD), limit of quantitation (LOQ), repeatability, reproducibility, and accuracy, for each method were also evaluated and compared to the values obtained by Dayag (2006). The values of these analytical parameters obtained in this study vary from the values obtained by Dayag (2006).

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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