The possibility of using spectrographic data to assess soils fertility

Abstract

© SGEM2017. All Rights Reserved. In order to determine the dependencies between the chemical indices of the soils of the automorphic series and the results of spectrographic analysis, the field survey with HandHeld2 spectrograph was conducted at cleaned surfaces of the soil sections at soil sampling site. Data for zonal soils of Chuvash Republic (podzolic chernozem, dark grey forest soils, typical grey forest soils and light grey forest soils) with different erosion degree were obtained. The results of agrochemical inspection were analyzed along with spectrographic curves of the given soils. A dependency between labile phosphorus (P 2 O 5 ) and exchangeable potassium (K 2 O) content in soils and spectrographic curve form was found. As a result, it managed to identify three main types of spectrographic curves for soils with different content of P 2 O 5 and K 2 O. The results of this work can be used for express analysis of erosion characteristics of different types of soils and for in-farm land management projects for agricultural enterprises.