NP 8-40 Compound Fertilizer: Usage Guide & Key Precautions5 (1)
High-phosphorus NP 8-40 boosts crop growth, but improper use wastes fertility. Follow these tips for optimal results: 1. Soil & Crop Compatibility Suitable soils: Prioritize phosphorus-deficient soils (e.g., red/yellow soils) to replenish phosphorus. Avoid: Phosphorus-rich soils (causes accumulation and soil hardening). Crop stages: Not recommended: Seedling stage (high phosphorus inhibits zinc/iron absorption, yellowing leaves); potassium-heavy crops (e.g.,…