41. From Q/I relationship described by Beckett (1964), a high PBCK indicates that
42. Soils with high pH are generally deficient in
43. Soil moisture regime dominant in India is
44. Boron deficiency in fodder crops can be seen when boron is
45. Which one is dominant mineral in sandstone
46. Which one is Non-ferromagnesian mineral?
47. In an experiment called Ash analysis the P cant material is strongly heated in the presence of oxygen. The residue contains oxides carbonates of about
48. More concentrated spray solution can be used in case of
49. Which lime is referred to as burned lime or quick lime
50. Morpho-genetic system of soil classification is given by
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