Lawn fertilization should be done in small amounts and frequently to ensure even grass growth. This approach helps maintain a healthy, lush lawn without overloading the soil or damaging the grass.
(1) Types of Fertilizers
1. Compound fertilizer comes in two forms: quick-release and slow-release. It is the most commonly used type for lawns. Quick-release compound fertilizer is dissolved in water and sprayed as a solution, while slow-release types are usually applied directly. However, slow-release fertilizers can cause localized burning if not used properly, so they are typically reserved for lawns that require less frequent feeding.
2. Urea is a highly concentrated nitrogen fertilizer often used on golf courses. While effective, excessive use can weaken the grass's disease resistance and may lead to burn damage if applied incorrectly. Due to these risks, it’s generally not recommended for regular lawn maintenance.
3. Fast Green is a liquid nitrogen-based fertilizer with effects similar to urea. It’s commonly used to enhance the green color of the grass quickly.
4. Long-acting compound fertilizer is a solid, multi-nutrient fertilizer that provides a steady release of nutrients over time. It is less likely to cause burning but tends to be more expensive than other options.
(2) Fertilizer Selection Principles
For high-quality turf (Level 1 or above), it's recommended to use quick-release compound fertilizer, Fast Green, and long-acting fertilizers. For lower-grade lawns (Level 2 and 3), slow-release compound fertilizers are suitable. Lawns classified as Level 4 generally do not require any additional fertilization.
(3) Fertilization Methods
1. Quick-release compound fertilizer should be dissolved in water at a 0.5% concentration and evenly sprayed using a high-pressure sprayer. The application rate is typically around 80 kg per hectare.
2. Fast Green should be diluted according to the manufacturer's instructions and applied using a high-pressure sprayer.
3. Long-acting compound fertilizer should be applied manually at the recommended dosage, ensuring even distribution. Water should be applied before and after the fertilizer is spread to prevent burning.
4. Slow-release compound fertilizer is evenly distributed at a rate of 20 g per square meter.
5. Urea should be diluted to a 0.5% concentration and sprayed using a high-pressure sprayer.
6. To ensure even coverage, fertilization should follow a systematic process involving points, slices, and zones.
(4) Fertilization Schedule
1. The application frequency of long-acting fertilizers depends on the product instructions.
2. For high-quality turf, quick-release compound fertilizer is typically applied once a month.
3. Fast Green and urea are only used for special occasions such as major events or inspections, and their use is strictly limited otherwise.
4. For Level 2 and 3 lawns, slow-release compound fertilizer is applied every three months.
By following these guidelines, you can maintain a healthy, vibrant lawn while avoiding common mistakes like over-fertilization or uneven nutrient distribution. Always read and follow the manufacturer's instructions carefully for best results.
2. Forceps: A tool used for grasping and holding tissues or organs during surgery.
3. Retractors: Surgical instruments used to hold open incisions or wounds to provide better visibility for the surgeon.
4. Scissors: Used for cutting tissues and sutures during surgery.
5. Hemostats: Used to clamp blood vessels and prevent bleeding during surgery.
6. Suction devices: Used to remove fluids or debris from the surgical site.
7. Needles: Used to suture or stitch wounds.
8. Electrocautery: A tool that uses an electrical current to cut or coagulate tissues during surgery.
9. Endoscopes: Used for minimally invasive surgeries, these instruments allow the surgeon to see inside the body without making large incisions.
Disposable Piercing Guide - WPTC12
Disposable surgical instruments are single-use medical devices that are used during surgery and discarded after use. Some examples of disposable surgical instruments include:
1. Scalpel 2. Tweezers 3. Scissors 4. Needle 5. Suture material 6. Surgical drapes 7. Surgical masks 8. Surgical gloves 9. Ironing pen 10. Trocar and cannula.
2. Forceps: A tool used for grasping and holding tissues or organs during surgery.
3. Retractors: Surgical instruments used to hold open incisions or wounds to provide better visibility for the surgeon.
4. Scissors: Used for cutting tissues and sutures during surgery.
5. Hemostats: Used to clamp blood vessels and prevent bleeding during surgery.
6. Suction devices: Used to remove fluids or debris from the surgical site.
7. Needles: Used to suture or stitch wounds.
8. Electrocautery: A tool that uses an electrical current to cut or coagulate tissues during surgery.
9. Endoscopes: Used for minimally invasive surgeries, these instruments allow the surgeon to see inside the body without making large incisions.
10. Laparoscopic instruments: Used for minimally invasive surgeries, these instruments include a camera and specialized tools for performing surgery through small incisions.
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