How much phosphate do I add?
Adding Soft Rock Phosphate to the Garden Use 5 pounds per 100 square feet in phosphorus-deficient soil, and less for soil with adequate phosphorus. For trees and transplanting, use 1 to 10 pounds per planting hole, depending on the size of the plant.
How do you apply phosphorus fertilizer?
If it’s a granular fertilizer, sprinkle and rake it onto flower beds or mix it into the topsoil along rows of vegetables. Meanwhile, liquid fertilizers should be diluted in water and sprayed or poured over the soil around plants; avoid spraying the plants themselves because this could burn them.
How much phosphorus do you put on grass?
Research conducted over 20 years ago by The Scotts Company throughout the country on soils with adequate and deficient levels of phosphorus found that lawn fertilizers required approximately 1 part of phosphorus for every 8 to 11 parts of nitrogen applied to turf to maintain proper growth.
How do you add phosphate to soil?
Scatter bone meal on top of the garden bed to add phosphorus to the soil. For every 1,000 square feet, apply 30 pounds for severely deficient soil, 20 pounds for moderately deficient soil and 10 pounds for slightly deficient soil. Broadcast kelp meal for potassium.
When should I add phosphate to soil?
Broadcast granite meal or greensand for potassium. The proportions are the same for either amendment. For every 1,000 square feet, use 100 pounds for severely deficient soil, 50 pounds for moderately deficient soil and 25 pounds for slightly deficient soil.
When should phosphorus be applied?
The best time to apply P is usually near the time of plant uptake. For spring crops, this means apply in the spring. However, P can be applied in the fall and winter and do almost as well as in spring if the soil pH is between 6.0 and 7.0.
Can you put too much phosphorus on your lawn?
The buildup of phosphorus in lawns, gardens, pastures and croplands can cause plants to grow poorly and even die. Excessive soil phosphorus reduces the plant’s ability to take up required micronutrients, particularly iron and zinc, even when soil tests show there are adequate amounts of those nutrients in the soil.
When should I apply phosphorus to my lawn?
The best time to apply phosphorus fertilizer is following aeration of turf in spring or early fall. Aeration is often necessary in compacted or poorly drained soils.
What amount of fertilizer is best for a plant?
Use 2 to 3 pounds of fertilizer such as 10-20-10 for every 100 square feet of garden area. Do not use too much fertilizer. This can kill plants. Two cups of most fertilizers will weigh about 1 pound.