Soil Test Guidelines:
• Enter available nutrient content in kg/ha (based on soil test results)
• For ppm values: multiply by 2.24 to convert to kg/ha
• Recommended soil testing: N (KMnO₄ method), P (Olsen method), K (NH₄OAc method)
• Test soil 0-20cm depth for accurate results
Fertilizer Selection Guide:
• Compound fertilizers provide balanced nutrition in single application
• Urea: High nitrogen content, ideal for vegetative growth
• DAP: High phosphorus, excellent for root development
• Muriate of Potash: Pure potassium source for fruit/grain filling
• Consider soil pH, crop stage, and weather conditions
Leave empty to use target yield calculation
Fertilizer Calculator
使用例とアプリケーション
このツールがプロフェッショナル環境で優れた性能を発揮する多様なアプリケーションと実際のシナリオをご覧ください
Crop Production
Optimize fertilizer application for various crops including corn, wheat, soybeans, and vegetables to achieve maximum yield and quality.
Soil Management
Balance soil nutrients and improve soil health through precise fertilizer calculations based on soil test results and crop requirements.
Agricultural Research
Support research projects and field trials with accurate fertilizer calculations for experimental plots and comparative studies.
Commercial Farming
Scale fertilizer calculations for large commercial operations to reduce costs while maintaining optimal crop nutrition and environmental sustainability.
このツールの使用方法
生産性を最大化し、プロフェッショナルな結果を達成するための包括的なステップに従ってください
クイックスタートガイド
Enter your field area, crop type, and current soil nutrient levels. The calculator will determine the optimal fertilizer amounts and NPK ratios needed for healthy plant growth and maximum yield.
主要機能
このツールをプロフェッショナルワークフローに不可欠なものにする強力な機能と高度な機能性をご覧ください
Precise Calculations
Advanced algorithms calculate exact fertilizer amounts based on crop requirements, soil conditions, and field size for optimal results.
Multiple Nutrients
Calculate requirements for primary nutrients (NPK), secondary nutrients (Ca, Mg, S), and micronutrients for complete plant nutrition.
Soil Test Integration
Input soil test results to get customized fertilizer recommendations that account for existing nutrient levels and soil pH.
Application Recommendations
Receive detailed application timing, methods, and split application schedules for maximum nutrient uptake efficiency.
よくある質問
よくある質問への包括的な回答を見つけ、最適な結果を得るために必要な専門的なガイダンスを入手してください
What do NPK ratios mean and how do I choose the right one?
NPK ratios represent the percentage of Nitrogen (N), Phosphorus (P), and Potassium (K) in fertilizer. Choose based on your crop needs: high N for leafy growth, high P for root development and flowering, high K for fruit development and disease resistance.
How do I determine the correct fertilizer application rate?
Application rates depend on crop type, growth stage, soil test results, and yield goals. Start with soil testing to determine existing nutrient levels, then calculate based on crop nutrient removal and target yield.
Why is soil testing important for fertilizer calculations?
Soil testing reveals existing nutrient levels, pH, and organic matter content. This prevents over-fertilization, reduces costs, minimizes environmental impact, and ensures nutrients are available to plants.
When is the best time to apply fertilizer?
Timing depends on crop type and nutrient mobility. Apply nitrogen when plants actively grow, phosphorus at planting or early growth, and potassium before planting or during early development. Split applications often improve efficiency.
GLandGo フィールド測定アプリをお試しください
GPS面積、距離、周囲、データエクスポートを含む高度な測定機能。 GPS面積, 距離, 周囲, and データエクスポート.
土地測量士、農家、不動産専門家に最適。
