91. Concentration of nitrogen in soil air is
92. Main difference between Soil profile and pedon
93. Which nitrogenous fertilizer industrially made first?
94. Saline soils are managed by
95. Nitrogen loss from urea application in paddy field is known as
96. Which type of soil survey use the lowest categories of taxonomic and mapping units, i.e., types and phases
97. Due to Nitrification process soil pH
98. Single super phosphate has chemical composition
99. The rhizosphere effect can be quantitatively represented by
100. One ton is equal to (kg)
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