Delineation of site-specific management zone based on SPOT6/7 remote sensing image in black soil area, Northeast China

SPOT6/7 images of bared soil and mid-season soybean were used to propose a new methodology for site-specific management zone (SSMZ) delineation in the Black soil farmland of Northeast China and soil organic matter and normalized difference vegetation index (NDVI) were used to evaluate the results. The results show: 1) SSMZ based on the June 9th image and the NDVI on the August 8th had the consistent trend; 2) SSMZ delineation based on the remote sensing image and object-oriented segmentation method is time intensive, low cost and high precision. The research results could provide the basis for the field variable fertilization and accelerates precision agriculture application.