@article{article_286626, title={DTPA-extractable micronutrients: A geostatistical study from Ordu, Turkey}, journal={Eurasian Journal of Soil Science}, volume={6}, pages={154–160}, year={2017}, DOI={10.18393/ejss.286626}, author={Aşkın, Tayfun and Türkmen, Ferhat and Tarakçıoğlu, Ceyhan and Kulaç, Sezen and Aygün, Selahattin}, keywords={DPTA-extractable micronutrients,spatial variability,site specific management}, abstract={<p> <span style="color:rgb(51,51,51);font-family:Arial, Helvetica, ’Lucida Sans Unicode’, ’Microsoft Sans Serif’, ’Segoe UI Symbol’, STIXGeneral, ’Cambria Math’, ’Arial Unicode MS’, sans-serif;font-size:14px;">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.  </span> <br style="color:rgb(51,51,51);font-family:Arial, Helvetica, ’Lucida Sans Unicode’, ’Microsoft Sans Serif’, ’Segoe UI Symbol’, STIXGeneral, ’Cambria Math’, ’Arial Unicode MS’, sans-serif;font-size:14px;" /> </p>}, number={2}, publisher={Türkiye Toprak Bilimi Derneği}