{"id":1163,"date":"2025-10-29T11:40:02","date_gmt":"2025-10-29T08:10:02","guid":{"rendered":"https:\/\/myepanel.ir\/apit\/?post_type=product&#038;p=1163"},"modified":"2025-11-11T13:46:35","modified_gmt":"2025-11-11T10:16:35","slug":"compound-fertilizers","status":"publish","type":"product","link":"https:\/\/apitpetro.com\/en\/product\/compound-fertilizers\/","title":{"rendered":"Compound Fertilizers"},"content":{"rendered":"<p style=\"text-align: justify;\"><strong>What are compound (NPK) fertilizers?<\/strong><\/p>\n<p style=\"text-align: justify;\">Compound fertilizers are multi-nutrient fertilizers manufactured so that each granule (or prill) contains a mixture of N, P and K in a predetermined ratio \u2014 for example 10-20-10, 15-15-15 or 20-10-10. This contrasts with straight fertilizers (urea, MAP, DAP, MOP) that supply a single nutrient per product. Compound NPKs are produced either by physically blending granules of single-nutrient materials or by chemical\/thermal granulation processes that create compound granules with homogeneous composition.<\/p>\n<p style=\"text-align: justify;\">There are two broad commercial approaches:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Blended NPKs: physical mix of single-nutrient granules (cheaper, flexible to local ingredient availability).<\/li>\n<li>Compound\/complex NPKs: produced via granulation or chemical reaction so that each granule contains all nutrients uniformly (better uniformity, less segregation, often preferred for precision spreading).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Why farmers choose NPK blends<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Balanced nutrition: One product supplies N, P and K in the exact ratio agronomists recommend for the crop and growth stage.<\/li>\n<li>Application simplicity: Easier logistics and application \u2014 one pass with a spreader or a single fertigation formulation.<\/li>\n<li>Uniform distribution: Properly manufactured compound granules reduce segregation and deliver predictable nutrient placement.<\/li>\n<li>Customizability: Blends can include secondary nutrients (S, Mg, Ca) and micronutrients (Zn, B, Mn, Cu, Mo) tailored to soil tests.<\/li>\n<li>Yield and quality: Balanced fertilization enhances root development, flowering, and stress resistance, improving both yield and crop quality.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Typical NPK ratios and when to use them<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>High-N starter\/vegetative blends (e.g., 20-10-10 or 15-5-20): Suited to leafy vegetables, cereals during rapid vegetative growth.<\/li>\n<li>Balanced blends (e.g., 15-15-15, 10-20-10): General purpose for field crops, vegetables, and orchards where balanced supply is desired.<\/li>\n<li>High-P blends (e.g., 10-30-10, 12-24-12): Starter fertilizers at planting for root establishment, especially on P-fixing soils.<\/li>\n<li>High-K blends (e.g., 8-8-24, 9-18-27): Fruiting crops, tuber crops and crops requiring stress tolerance and improved quality (sugar content, storability).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Use soil tests and crop nutrient budgets to select the correct NPK ratio and timing for maximum efficiency.<\/p>\n<p style=\"text-align: justify;\"><strong>Manufacturing methods- blended vs compound granulation<\/strong><\/p>\n<ol style=\"text-align: justify;\">\n<li>Physical blending: Different single-nutrient granules (urea, MAP, KCl, ammonium sulfate, etc.) are mixed. Advantages: flexible, fast to change ratio, lower capital cost. Disadvantages: possible segregation in transport and spreading if particle densities\/size differ.<\/li>\n<li>Granulation \/ compound production (complex\/chemical methods): Raw materials are agglomerated in granulators (drum, pan, fluidized bed) or produced via chemical routes so that each granule is compositionally uniform. Advantages: uniform nutrient distribution, less segregation, better fertilizer spreadability and appearance. Disadvantages: higher production complexity and capital cost.<\/li>\n<li>Coated and controlled-release NPKs: Base NPK granules are coated with polymers, sulfur or resins to slow nutrient release, reducing losses and improving efficiency in high-leaching conditions or for timed nutrient supply.n<\/li>\n<\/ol>\n<p style=\"text-align: justify;\"><strong>Product types and value-added features<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Standard granulated NPK (bulk): Economical, widely used for cereal and broadacre cropping.<\/li>\n<li>Water-soluble NPK (fertigation grade): Fully soluble grades for drip and foliar programs in horticulture and greenhouse production. These require high purity raw materials to avoid clogging.<\/li>\n<li>Controlled-release NPK: Polymer\/sulfur coated or multi-layer granules for long season crops or where split applications are difficult.<\/li>\n<li>Micronutrient-fortified blends: NPK + Zn, B, Mn, Cu, Mo tailored for deficiency correction or high-value crops.<\/li>\n<li>Specialty blends (foliar or starter): Fine-crystalline or liquid blends formulated for immediate uptake.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Agronomic best practices<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Base decisions on soil testing: Use soil and tissue tests to define NPK ratios and rates\u2014avoid over-application.<\/li>\n<li>Split applications: Apply nitrogen in splits to match crop uptake and reduce leaching.<\/li>\n<li>Right placement: Banding or side-dressing increases P efficiency and reduces fixation losses.<\/li>\n<li>Use of inhibitors: Nitrification and urease inhibitors help reduce losses from leaching and volatilization.<\/li>\n<li>Compatibility: For fertigation, ensure water-soluble NPK grades are fully soluble and compatible with irrigation systems and other agrochemicals.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Quality specifications buyers should request<\/strong><\/p>\n<p style=\"text-align: justify;\">When sourcing NPK blends, require clear technical documentation:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Guaranteed analysis: %N (specify ammoniacal\/nitrate\/ureic forms if relevant), %P\u2082O\u2085, %K\u2082O, %S (if present), micronutrients.<\/li>\n<li>Particle size distribution &amp; bulk density: For spreader calibration and logistic planning.<\/li>\n<li>Moisture &amp; caking limits: Important in humid climates and during shipping.<\/li>\n<li>Water solubility (for fertigation grades): 100% soluble, with low insoluble residue.<\/li>\n<li>Coating specification (if controlled release): coating type, release profile, and recommended soil temperature curve.<\/li>\n<li>Trace contaminants: Chloride content, heavy metals (Cd, Pb, As), and water-insoluble P.<\/li>\n<li>COA, MSDS &amp; origin\/traceability documents.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Packaging, handling &amp; storage<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Packaging options: 25\u201350 kg woven bags with liners (retail), 500\u20131,000 kg FIBCs (big-bags) for distributors, and bulk pneumatic deliveries for large farms.<\/li>\n<li>Storage: Keep dry, ventilated, off the ground and covered. Avoid mixing incompatible fertilizer types in the same storage area (e.g., keep urea\/anhydrous ammonia separate from oxidizers).<\/li>\n<li>Spreader calibration: Use particle size and bulk density data to set spreader rates; ask your supplier for calibration charts.<\/li>\n<li>Transport: Protect from moisture; use palletization and liners for maritime export to prevent caking.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Environmental considerations &amp; stewardship<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Nutrient stewardship: Use the \u201c4R\u201d principles \u2014 Right source, Right rate, Right time, Right place \u2014 to minimize off-site nutrient losses.<\/li>\n<li>Controlled release and inhibitors: These technologies reduce environmental footprint and increase nitrogen use efficiency.<\/li>\n<li>Monitoring: Soil testing and yield mapping help refine blends and reduce excess application over time.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Market &amp; procurement notes<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Local raw material availability influences choice: Many blended NPKs are customized to locally available straight fertilizers (urea, DAP\/MAP, KCl).<\/li>\n<li>Traceability and quality: Request batch COAs and, for food production chains, evidence of low heavy-metal content and certification as required by import regulations.<\/li>\n<li>Suppliers &amp; brands: Major fertilizer suppliers and specialist compounders produce branded NPK lines as well as private-label blends for distributors. For bulk procurement, confirm lead times, blending capacity and logistics to match seasonality.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Why source NPK blends from Apit?<\/strong><\/p>\n<p style=\"text-align: justify;\">At Apit we deliver tailored NPK solutions that combine agronomic accuracy and secure logistics:<\/p>\n<ul>\n<li style=\"text-align: justify;\">Custom blend design based on soil tests and crop plans.<\/li>\n<li style=\"text-align: justify;\">Options for blended, compound and water-soluble grades including micronutrient fortification.<\/li>\n<li style=\"text-align: justify;\">Flexible packaging and reliable export logistics with full COA\/MSDS documentation.<\/li>\n<li style=\"text-align: justify;\">Technical support on application methods, spreader calibration and stewardship best practices.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Compound fertilizers \u2014 commonly sold as NPK blends \u2014 are engineered formulations that deliver the three primary macronutrients (Nitrogen, Phosphorus and Potassium) in a single, convenient product. For modern farming systems, correctly specified NPK blends improve nutrient use efficiency, simplify logistics and support balanced nutrition tailored to crop, soil and climate. Below is a complete, SEO-friendly, publication-ready text you can place directly on your website. It is original, technically accurate, and written for commercial use.<\/p>\n","protected":false},"featured_media":1164,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[39],"product_tag":[],"class_list":{"0":"post-1163","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-fertilizers-agrochemicals","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product\/1163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/comments?post=1163"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/media\/1164"}],"wp:attachment":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/media?parent=1163"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product_brand?post=1163"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product_cat?post=1163"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product_tag?post=1163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}