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Posts tagged NPK

Fertilizer NPK Ratios – What Do They Really Mean

Most references say that the NPK values indicate the % nitrogen, % phosphorus and % potassium. They say this, not because it’s true, but because it makes it simple to explain fertilizer concepts to the general public.

What does NPK really mean?

Fertilizer NPK Numbers - What Do They Really Mean

Fertilizer NPK Numbers – What Do They Really Mean

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Compost Fertilizer Numbers

In my last post Compost – Is it an Organic Fertilizer, I concluded that compost was an organic fertilizer and that it adds nutrients for the garden. I’d now like to have a closer look at the compost fertilizer numbers, the NPK, to better understand how and when the nutrients from compost are made available to plants. This discussion will also uncover some interesting facts about reported fertilizer numbers for organic fertilizers.

compost fertilizer numbers

compost fertilizer numbers

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