Description

Slow Release DAP is an upgraded high-efficiency compound fertilizer based on traditional DAP, designed to solve the common pain points of traditional DAP—low nutrient utilization, frequent topdressing and serious nutrient loss. As a professional China manufacturer and supplier, Shandong Aolansu has its own factory specializing in slow release DAP production, focusing on providing cost-effective products for global agricultural procurement.

Our Slow Release DAP adopts advanced gelatin/PVA composite coating technology, which forms a breathable protective film on the surface of fertilizer particles. This film controls the nutrient release speed effectively: when applied to the soil, moisture penetrates the film to dissolve the fertilizer, and nutrients diffuse slowly through micro-pores, matching the crop growth rhythm perfectly. This design not only avoids nutrient waste caused by rapid release, but also reduces topdressing times from 2-3 times to 1 time, saving a lot of labor costs for farmers and planting bases.

As a reliable China factory, we adhere to strict quality control standards. All products comply with GB 10205-2009 national standard and international slow-release fertilizer standards. The total nutrient (N+P₂O₅) content is ≥64%, with total nitrogen ≥18% and available phosphorus (as P₂O₅) ≥46%, ensuring sufficient nutrient supply for crops. The slow-release period is 30-120 days, adjustable according to different crops and planting cycles. The product is weakly alkaline, suitable for neutral, acidic and slightly alkaline soils, with moisture content ≤2.0% to prevent caking during storage and transportation.

Our factory is equipped with professional coating production lines and environmental protection equipment, selecting high-purity phosphoric acid and liquid ammonia as raw materials. Every batch of products goes through strict inspection procedures, from raw material entry to packaging, to ensure uniform particle size, good fluidity and no caking. We provide factory-direct supply, sufficient stock and competitive prices, accepting small-batch trial orders (1 ton minimum) to help buyers avoid procurement risks.

For overseas buyers, we provide complete export documents, including MSDS, COA and certificate of origin, ensuring smooth customs clearance. Our logistics team has rich experience in international transportation, capable of delivering goods to Southeast Asia, Africa, South America and other regions in a timely manner. We also offer free samples (500g-1kg) and professional after-sales guidance, solving practical problems in application for buyers.

Shandong Aolansu, as a professional China manufacturer and supplier, is committed to providing high-quality slow release DAP with thoughtful service. We welcome global agricultural dealers, planting bases and farmers to cooperate with us.

Product Specifications

FAQ =

Q1: What is the difference between Slow Release DAP and ordinary DAP?
A1: The biggest difference lies in the slow-release performance. Our Slow Release DAP adopts gelatin/PVA composite coating technology, which can realize slow and continuous release of nutrients, with a slow-release period of 30-120 days, reducing topdressing times and improving nutrient utilization rate. Ordinary DAP releases nutrients quickly, which is easy to cause nutrient loss and requires frequent topdressing. Shandong Aolansu’s factory has carried out a lot of field tests to verify the advantages of slow release DAP in practical application.

Q2: What crops is Slow Release DAP suitable for?
A2: It has strong versatility and is suitable for almost all crops, including food crops such as rice, wheat and corn, cash crops such as cotton, oilseeds and vegetables, and fruit trees such as apples, pears and citrus. It is especially suitable for large-scale planting bases and areas with inconvenient topdressing, which can greatly save labor costs.

Q3: Why choose Shandong Aolansu as your China supplier for Slow Release DAP?
A3: We are a professional China manufacturer with our own factory, focusing on Slow Release DAP production for many years. We have advanced coating production lines and strict quality control system, ensuring stable product quality and reliable slow-release effect. We provide factory-direct prices, sufficient stock, timely delivery and complete export documents, which can fully meet your bulk procurement needs.

Q4: How to store Slow Release DAP correctly?
A4: It should be stored in a dry, ventilated and cool warehouse, away from moisture and alkaline substances, to avoid caking and affecting the slow-release effect. It should not be stored in a humid and high-temperature environment, and should be stacked neatly to prevent extrusion and damage of the coating. Our factory will attach detailed storage guidelines to each batch of goods to help you store them correctly.