the chemical fertilizer required for better rhizobial nitrogen fixation is

Options :
  1. P
  2. K
  3. Ca
  4. Na
Answer and Explanation :-

Answer: Option 1

Explanation:

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Wouldn't it be nice, for once, to find a world which was at peace with itself. No matter how always those few wanted more than others. Those not satisfied with running their own lives but wishing to have power over the lives of the others. Greedy people. Greedy for wealth, or power or both.
-Garry Douglas Kilworth The Wizard Of Woodworld