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What does this mean??? 100 pounds plant-available N

I'm not sure if I'm not reading this rights or what. Can someone tell me what this means exactly?


"12 12 12 fertilizer at a rate of 100 pounds plant-available N per acre should be broadcast and incorporated into the soil before planting"


Thank you!


  • nutcutletnutcutlet Posts: 27,295

    12 12 12 will be the percentage of NPK I should think, 

    100lbs of it per acre maybe

    I don't know how you'd work out what proportion of the N was plant available.

    Sounds like a question for a farming or smallholding forum

    In the sticks near Peterborough
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