81. Thermal conductivity follows the order
82. Dual Salt process is associated with which fertilizer
83. Which silicate class is having 3-D structure
84. The rate of water absorption is decreased due to deficiency of
85. Which of the following nutrients is lost in the greatest amount by allowing exposure of manure pile to rain
86. Water stable aggregates in soil increase by addition of
87. Clay mineral with limited expansion
88. SAR is measured by
89. The readily available form of K in soil ranges from
90. Humus fraction lightest in colour is
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