TY - JOUR 
AU - Ferhat Türkmen
AU - Tayfun Aşkın
AU - Ceyhan Tarakçıoğlu
AU - Sezen Kulaç
AU - Selahattin Aygün
TI - DTPA-extractable micronutrients: A geostatistical study from Ordu, Turkey
JO - Eurasian Journal of Soil Science
VL - 6
IS - 2
PB - Federation of Eurasian Soil Science Societies 
SN - 2147-4249 
UR - http://ejss.fesss.org/10.18393/286626
DO - 10.18393/286626
SP , EP - 154-160
KW  - DPTA-extractable micronutrients, spatial variability, site specific management.
PY  - 2016
AB  - 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.
ER  -