81.
During Urea hydrolysis pH of the soil system attains a value

82.
Nutrient movement slows down in a dry soil due to

83.
Harvest index is 100% for

84.
Lithosol, Regosol come under

85.
Total Mn of a soil sample after digestion with HF (not upto dryness) can be measured through

86.
The Standard sea-level pressure at 45° latitude at a temperature of 15°C is

87.
Red soils to India are poor in

88.
One number of fertiliser sale points in India are

89.
Downey mildew of pearlmillet may be suppressed by increased soil levels of

90.
Town compost contains merely

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