21. Inorganically formed sedimentary rock is
22. IFFCO was formed in the year of
23. CEC of humus is
24. Which nutrient element determines the quality of produce?
25. The term functional or metabolic nutrient was given by
26. Sylvite, Sylvanite, Langbeinite, Glascrite are ore of which nutrient?
27. In wet digestion procedure ratio of tri acid mixture is
28. By using angle of Extinction, we can identify which one of these minerals?
29. Which of the following crops is most tolerant to salty soils
30. Chlorite belongs to the
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