11. An alkali soil must have pH value of
12. The cation exchange capacity is highest of
13. The extent of Zn-deficient soils is approximately
14. pH of Calcareous Soil is generally
15. If fertiliser prices go up the optimum close should
16. Olsen's method, which is used for phosphorus detection method used in soil is
17. Chemical (Grigg & Tamn reagent) used for extraction of Mo is
18. In Minimum thermometer, material used is
19. Gypsum block can measure water potential up to
20. The mineral chlorite has an extra layer of
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