Newsletter/Blog 2010-08-23 QUICK TIPS - Fertilizer Every bag of fertilizer has three numbers connected with hyphens on the label, such as 6-2-0. Those numbers are the NPK ratio-the percentages of nitrogen, phosphorus, and potassium in the fertilizer. Organic fertilizers have lower numbers than synthetic types because the numbers show the amount of nutrients that will be available int first year. Organic fertilizers release nutrients slowly, giving your plants more nutrients in the long run.
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