Other recommended balanced fertilizers are Southern Ag's 10-10-10, Lilly Miller's 10-10-10, EB Stone's 5-5-5, and Burpee's 4-4-4. How to apply: Before planting, apply 1-1/2 (1.5) cups of fertilizer per 10 square feet of growing space (or 10-foot row of turnips) and mix into the top few inches of soil, then water well. Fertilizer Balance. Generally, fertilizer has an "NPK" number on the front of the container. The NPK number consists of three numbers, with each representing the concentration of nitrogen, phosphorus, and potassium, hence the name.. For the right formula for onions, you want to choose a mix that's high in nitrogen. NPK Ratio: 2-0-1. Alfalfa is an organic fertilizer commonly used as part of livestock feed. However, alfalfa meal is a natural fertilizer simply ground up so that it breaks down faster. This particular organic fertilizer has low amounts of nitrogen, phosphorus, and potassium. Citrus tree fertilizing is either done through the leaves or through the ground. Following the directions on your chosen fertilizer, which will be to either spray the fertilizer onto the leaves of your citrus tree or spread it out around the base of the tree as far as the canopy reaches. Do not place fertilizer near the trunk of the tree. The best NPK ratio for lettuce is a general ratio of 10-20-10. The nitrogen in the 10 provides for healthy leaf growth, the phosphorous in the 20 helps with root development and flowering, and the potassium in the 10 makes sure your plant has all of its mineral needs met. The best NPK ratio for lettuce can be applied by using a fertilizer that According to the product label, 17-7-10 is the NPK number of this fertilizer and this is the perfect ratio for Bougainvillea and other flowering vines to promote healthy growth and flowers. This fertilizer has 13.40% urea nitrogen out of 17%. Remember; urea fertilizer feeds the plant aggressively. Granular fertilizers work best when watered in or worked into the soil. Other fertilizers, specifically for trees and houseplants are spikes that are pushed into the ground (trees) or pot (houseplants.) Synthetic fertilizer labels carry an NPK ratio that tells you what percentage of each of these minerals makes up the product. An NPK ratio The rule of thumb is that a 15-0-10 or 15-0-15 NPK fertilizer is the best for zoysia grass. The grass requires about 4 pounds of nitrogen per 1000 sq. ft. in total per year. However, the right type of fertilizer for you should be based on a soil test that determines the deficient nutrients. When it comes to feeding cacti, however, it is best to use a fertilizer that is low in nitrogen. A 5-10-10 (NPK) fertilizer is optimal, but if you only have access to a 10-10-10 (NPK), you can use it as long as you dilute it. Phosphorous is used to boost growth in a plant's root system. Example: Milorganite 0636 Nitrogen Fertilizer has an NPK ratio of 6-4-0, and the package contains 32 pounds of fertilizer. Calculation: 6% nitrogen (0.06) x 32 pounds of fertilizer = 1.92 pounds of nitrogen ; Bermudagrass may also need other soil amendments to adjust the soil pH. Bermudagrass does best in soil with a pH of 6.0 to 6.5. uLUSp.