Suitability of Sequential Extraction (Step.1) Method for Used to Determine Plant Available Boron (B) of Erzurum Plain and Oltu District Agricultural Soils

Abstract

The purpose of this study was to studied suitablity of sequential extraction method
(step.1) for determining plant available boron content of Erzurum Plain and Oltu District
agricultural soils. Representative total 32 of soils samples were collected from different soil
locations of Erzurum (19) and Oltu district (13). In order to determining suitability
sequential extraction method (step1) as related to of the test plant (potato) was taken as the
standart (biological) index.
However, the correlation analysis for both Erzurum Plain and Oltu location showed nonsignificant correlation( not show any significant differences between plant availlable boron
and leaf boron content, ( biological index /boron uptake of plant) so; based on these result
and because sequential extraction (first step) method was not comparable, sequential
extraction (first step) method is not recommended for plant available Boron extraction.
Results showed that the step1 chemical exraction methods might not be used for plant
available Boron at least in this conditions growing potato in this Erzurum Plain and Oltu
location.