61. C : N ratio of FYM is
62. Which element is considered as energy currency for the plant
63. Basic slag is a
64. Which one is called Black Mica?
65. Magnesium in octahedral sheet of clay mineral indicates
66. Which one is right, according to population in soil?
67. The amount of organic matter by weight in organic soil is
68. . . . . . . . . suggest that saltpeter (KNO3), and not water, was the 'principle of vegetation'
69. Which is the correct sequence of decreasing age of soil?
70. Oldest surviving long term manurial trial in India is located at . . . . . . . . initiated in 1909.
Read More Section(Soil Science)
Each Section contains maximum 100 MCQs question on Soil Science. To get more questions visit other sections.