Buffer zone for PPP: SHARPEN PLUS
Crop/Area Surface water category Minimum distance
Maize (Zea mays L. (partim) 1st category water  30 m  
Maize (Zea mays L. (partim) 2nd category water  30 m  
Onion (Allium cepa L. 1st category water  30 m  
Onion (Allium cepa L. 2nd category water  30 m  
Potato (Solanum tuberosum L. 1st category water  30 m  
Potato (Solanum tuberosum L. 2nd category water  30 m  
Soya (Glycine max (L.) MERR. 1st category water  30 m  
Soya (Glycine max (L.) MERR. 2nd category water  30 m  
Sunflower (Helianthus annuus L. 1st category water  30 m  
Sunflower (Helianthus annuus L. 2nd category water  30 m  
Wheat (Triticum aestivum L. 1st category water  30 m  
Wheat (Triticum aestivum L. 2nd category water  30 m