What are the quantity of fertilizer required :

A fertilizer contains 20% nitrogen by mass. To provide a fruit tree with an equivalent of 1 kg of nitrogen, the quantity of fertilizer required is

  1. 20 kg
  2. 0.20 g
  3. 0.05 kg
  4. 5 kg
Anurag Mishra Professor Asked on 13th February 2016 in Biology.
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