Soil Amendment Calculator
Calculate the amount of compost or manure needed to increase organic matter content in your soil.
How to Use the Soil Amendment Calculator
- Enter the field area in m².
- Enter the current and target organic matter content (%).
- Enter the tillage depth (cm) and soil density.
- Click Calculate to get the required amendment rate.
使用例
- •Improving the structure of degraded soils.
- •Preparing beds for organic farming.
- •Increasing soil water-holding capacity.
- •Building long-term soil fertility.
計算式
Amendment mass = soil volume × density × (target OM% − current OM%) / 100.
よくある質問
What is soil organic matter?
Organic matter consists of decomposed plant and animal residues that improve soil structure, water retention, and fertility.
How often should amendments be applied?
Usually annually or every 2-3 years, depending on the initial soil condition and crop type.
What is the typical soil density?
For most arable soils, bulk density ranges from 1.1 to 1.5 g/cm³. The default value is 1.3 g/cm³.