Adding hydrated lime to soil is a process used to neutralize acidity and provide essential nutrients like calcium and magnesium. Here's a step-by-step guide:
1. Soil Testing is Crucial
Before applying hydrated lime, it's essential to conduct a soil test. This determines the soil's pH level and nutrient deficiencies, guiding the amount of lime needed. Contact your local agricultural extension office for information on soil testing services.
2. Determine the Application Rate
The soil test results will indicate how much hydrated lime is required to achieve the desired pH level. This is typically expressed in pounds per 100 square feet or tons per acre. Always follow the recommendations provided with your soil test. Applying too much lime can be as detrimental as not applying enough.
3. Timing is Important
The best time to apply hydrated lime is generally two to three months before planting. This allows sufficient time for the lime to react with the soil and adjust the pH. Fall application is often preferred.
4. Spreading the Hydrated Lime
- Small Gardens: For small gardens, you can spread the hydrated lime by hand, wearing gloves and eye protection. Aim for even distribution.
- Larger Areas: For larger areas, a fertilizer spreader is recommended for a more uniform application. Calibrate the spreader according to the lime's recommended application rate.
5. Incorporating the Lime into the Soil
After spreading, incorporate the hydrated lime into the soil using a tiller, shovel, or garden fork. Aim to mix it into the top 6-8 inches of soil. This helps the lime react more effectively with the soil.
6. Watering the Soil
After incorporating the lime, water the soil thoroughly. This helps to activate the lime and begin the pH adjustment process.
Precautions When Handling Hydrated Lime
- Wear Protective Gear: Hydrated lime is caustic and can irritate skin, eyes, and lungs. Always wear gloves, eye protection (goggles or safety glasses), and a dust mask when handling it.
- Avoid Inhalation: Avoid breathing in the dust. Work in a well-ventilated area.
- Wash Thoroughly: After handling hydrated lime, wash your hands and any exposed skin thoroughly with soap and water.
Benefits of Adding Hydrated Lime
- Neutralizes Soil Acidity: Raises the pH of acidic soils, making nutrients more available to plants.
- Supplies Nutrients: Provides calcium and magnesium, essential nutrients for plant growth.
- Improves Soil Structure: Can improve soil structure, especially in clay soils.
- Prevents Blossom End Rot: Helpful in preventing blossom end rot in tomatoes and other vegetables.
