The BioAdvanced 3-in-1 Weed and Feed for Southern Lawns fights to kill weeds, strengthen your lawn, and prevent new weeds from appearing. It kills listed lawn weeds including dandelion, dollarweed, and clover. The fertilizer feeds, greens, and strengthens your lawn.

Thus, the fertilizer has a 3-1-1 ratio. If your soil test report recommends applying 1.5 lb of nitrogen, 0.5 lb of phosphate, and 0.5 lb of potash per 1000 sq ft, you should apply a fertilizer with a ratio of 3-1-1 since you need three times as much nitrogen as phosphate and three times as much nitrogen as potash.

Ideal for a wide range of crops, Nature's Source Water Soluble Organic Plant Fertilizer 3-1-1 promotes rapid nutrient response and hearty plant growth. Sustainable. Contains oilseed extract, a renewable source of plant nutrition. Its low salt index lets you feed at higher rates than with most organic fertilizers.

A NPK ratio of 4:2:1 (N:P2O5:K2O) is generally considered ideal and accepted for macro-level monitoring of consumption of plant nutrients for the country as a whole.

Studies have found that the ideal NPK fertilizer ratio of those nutrients for flowering plants is 3-1-2. (That's 3% Nitrogen, 1% phosphorus & 2% potassium.) So look for that ratio on the label of packaged fertilizers; anything close to a 3-1-2, a 6-2-4 or a 9-3-6 should be ideal.

If your soil test report recommends applying 1.5 lb of nitrogen, 0.5 lb of phosphate, and 0.5 lb of potash per 1000 sq ft, you should apply a fertilizer with a ratio of 3-1-1 since you need three times as much nitrogen as phosphate and three times as much nitrogen as potash.

So turfgrass fertilizers, as a general rule, are in a rough ratio of about a 3:1:2. So meaning there's about 3 times as much Nitrogen as Phosphorus, and about 2 times as much Potassium as Phosphorus.

The following are the main fertilizer ratios used by gardeners:

• Rooting: 1-2-1.
• Flowering and fruiting: 1-1-2, 1-2-2, 2-1-2.
• All-purpose: 1-1-1.
• Leafy growth: 2-1-1, 3-1-1.

Recommended Nutrient Ratio for the Flowering Stage During the early and mid flowering stage (that is when the plants stretch and the buds bulk up), the plant calls for a NPK ratio of 1:3:2; while towards the later flowering stage (that is the ripening process), it requires a NPK ratio of 0:3:3.

For instance, to encourage plants to root, you need to choose a fertilizer that is higher in phosphorous than in nitrogen or potassium, i.e. one with a 1-2-1 ratio. The following are the main fertilizer ratios used by gardeners: Rooting: 1-2-1. Flowering and fruiting: 1-1-2, 1-2-2, 2-1-2.

The fertilizer ratio indicates the proportion of nitrogen, phosphate, and potash in the fertilizer product, and is determined by dividing each of the three numbers in the fertilizer grade (listed on the container) by the lowest number in the grade.

Understanding the Fertilizer Label These three numbers represent the primary nutrients (nitrogen(N) - phosphorus(P) - potassium(K)). This label, known as the fertilizer grade, is a national standard. A bag of 10-10-10 fertilizer contains 10 percent nitrogen, 10 percent phosphate and 10 percent potash.