DTPA-extractable micronutrients: A geostatistical study from Ordu, Turkey

Year 2017, Volume: 6 Issue: 2, 154 - 160, 01.04.2017

Tayfun Aşkın , Ferhat Türkmen Ceyhan Tarakçıoğlu Sezen Kulaç Selahattin Aygün

https://doi.org/10.18393/ejss.286626

Cited By: 3

Abstract

In present study, geostatistical techniques were applied to assess the spatial variability of DTPA-extractable micronutrients which are named heavy metals as chemistry such as; iron (Fe), copper (Cu), manganese (Mn) and zinc (Zn) in the non-tillaged layer in Ordu province- Altınordu district, Black sea region, Eastern part of Turkey. Study area was approximately 40095.8 ha where was divided into grids with 2500 x 2500 m spacing with including 66 sampling points from 0-0.2 m in depth. Soil reaction (pH) was the least variable property while electrical conductivity (EC) was the most variable. While the highest nugget effect occurred for Ext-Cu with moderate spatial dependence, the lowest for Ext-Mn with strong spatial dependence. The greatest range of influence (17424 m) occurred for Ext-Cu and the least range (692 m) for Ext-Zn. 

Keywords

DPTA-extractable micronutrients, spatial variability, site specific management

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