COMPARISON OF ORDINARY KRIGING AND CO-KRIGING METHODS IN GEOSTATISTICAL PREDICTION OF SITE SPECIFIC PLANT N LEVELS ON A STRAWBERRY FIELD. JGEM [Internet]. 2016 Jan. 26 [cited 2026 Sep. 27];32(1). Available from: https://bulletin-geography.kaznu.kz/index.php/1-geo/article/view/78