--- product_id: 325417931 title: "Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder" brand: "petra" price: "R1316" currency: ZAR in_stock: true category: "Petra" url: https://www.desertcart.co.za/products/325417931-petramax-liquid-nitrogen-fertilizer-28-0-0-npk-32-oz store_origin: ZA region: South Africa --- # 70% quick + 30% slow release tech 28-0-0 ultra-high nitrogen boost Covers up to 12,800 sq. ft. Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder **Brand:** petra **Price:** R1316 **Availability:** ✅ In Stock ## Summary > 🌿 Turn your lawn into the envy of the neighborhood with every spray! ## Quick Answers - **What is this?** Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder by petra - **How much does it cost?** R1316 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/325417931-petramax-liquid-nitrogen-fertilizer-28-0-0-npk-32-oz) ## Best For - petra enthusiasts ## Why This Product - Trusted petra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid Green-Up Power:** Ultra-high nitrogen formula transforms yellow, tired lawns into lush, vibrant green in no time. - • **Effortless Application:** Mix and spray with ease; treats large areas up to 12,800 sq. ft. with just one bottle for maximum value. - • **Trusted American Quality:** Proudly family-owned USA brand with 100% satisfaction guarantee and dedicated customer support. - • **Dual-Action Nitrogen Release:** 70% quick-release for instant results, 30% slow-release for sustained lawn vitality between feedings. - • **Universal Grass Compatibility:** Perfect for all grass types—warm or cool season—ensuring consistent growth year-round. ## Overview Petramax Liquid Nitrogen Fertilizer 28-0-0 is a premium 32 oz liquid turf builder designed for spring and summer lawn care. Featuring a scientifically balanced 70% quick-release and 30% slow-release nitrogen formula, it delivers rapid greening and sustained growth for all grass types. Easy to apply with a simple mix-and-spray method, it covers up to 12,800 sq. ft., making it ideal for both maintenance and nitrogen correction. Made by Petra, a trusted American family-owned company, it comes with a satisfaction guarantee and reliable customer support. ## Description desertcart.com : Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder : Patio, Lawn & Garden ## Features - ULTIMATE LIQUID NITROGEN FERTILIZER: This liquid lawn food supplement has an ultra-high nitrogen formula to promote green grass and quick growth. Easily turn yellow & nitrogen deficient grass into a lush thick green! - 28-0-0 QUICK & SLOW RELEASE TECHNOLOGY: This 2-in-1 liquid lawn fertilizer formula provides 70% quick-release nitrogen for rapid green and growth and 30% slow-release nitrogen for ongoing growth between applications.Get the best of both worlds in 1 easy application. - WORKS WITH ALL GRASS TYPES: Whether you have warm- or cold-season grass, this is the perfect liquid grass food for quick green-up. It's super-effective in making your lawn green and to achieve consistent growth. Ideal for both new and old lawns. - Apply Nitrogen to Your Lawn Quickly: PetraTools created our NPK lawn booster to be simple and easy to use. Mix 5oz of liquid nitrogen per gallon of water for maintenance or 10 oz per gallon to correct nitrogen levels. Treats up to 12,800 Sq. Ft. for maintenance or 6,400 Sq. Ft. of nitrogen deficient grass. For best results, use a PetraTools sprayer to evenly spray mixture across lawn. - American Family-Owned Company & USA Support: PetraTools is a USA-based company located in Carlisle, Pennsylvania. All PetraTools products have a 100% satisfaction guarantee and excellent USA customer service members waiting by the phones to answer any questions you may have. PetraTools continues to work hard to deliver top-quality sprayers & solutions to keep your home, lawn, and places of business clean, green, and safe. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B095BTZPYD | | Best Sellers Rank | #14,307 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #486 in Garden Fertilizers | | Brand Name | Petra | | Coverage | Full | | Customer Reviews | 4.4 4.4 out of 5 stars (932) | | Included Components | Fertilizer | | Item Form | Liquid | | Item Weight | 32 Ounces | | Liquid Volume | 32 Fluid Ounces | | Manufacturer | Petra | | Mixing Ratio | 1:20 or 1:10 | | Model Number | CRG/EY-7481FWS | | Number of Items | 1 | | Part Number | 0-01 | | Specific Uses For Product | Lawn,Lawns | | Target Species | grass types | | UPC | 850029123415 | | Unit Count | 128.0 Fluid Ounces | ## Product Details - **Brand:** Petra - **Item Form:** Liquid - **Item Weight:** 32 Ounces - **Liquid Volume:** 32 Fluid Ounces - **Specific Uses For Product:** Lawn,Lawns ## Images ![Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder - Image 1](https://m.media-amazon.com/images/I/81r6Hwbd69L.jpg) ![Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder - Image 2](https://m.media-amazon.com/images/I/A1guqhfdDyL.jpg) ![Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder - Image 3](https://m.media-amazon.com/images/I/81n7ingHdeL.jpg) ![Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder - Image 4](https://m.media-amazon.com/images/I/91dxF9UQ4nL.jpg) ![Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK - 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care - Slow Release High Nitrogen Turf Builder - Image 5](https://m.media-amazon.com/images/I/91BvvHNpOrL.jpg) ## Available Options This product comes in different **Size** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/325417931-petramax-liquid-nitrogen-fertilizer-28-0-0-npk-32-oz](https://www.desertcart.co.za/products/325417931-petramax-liquid-nitrogen-fertilizer-28-0-0-npk-32-oz) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-14*