Fertilizer Technology — Test 7
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Question 1
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
Question 2
Which of the following fertilisers contains the least percentage of nitrogen ?
Question 3
pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
Question 4
Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it___________________?
Question 5
In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process___________________?
Question 6
Oxidation of ammonia is________________?