Global NPK Fertilizer Market By Type (Chlorine-based Compound Fertilizers, Sulfur-based Compound Fertilizers, Nitro-based Compound Fertilizers, and Urea-based Compound Fertilizer), By Application (Wheat, Rice, Maize, and Fruits & Vegetables), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028