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A.Upland rice
B.Jute
C.Lowland rice
D.Sorghum
Bone meal is well suited for:
A.Alkaline soil
B.Neutral soil
C.Acidic soils
D.All of these
Bray suggested certain modification in the Mischerlich equation:
A.dy/dx = (A – Y)C
B.A = B (1 – Y)/Y
C.Log (A – Y) = log A – CX
D.Log (A – Y) = log A – C1 b – CX
Buffering capacity of soil means resistance to a change in:
A.Soil microbial activity
B.Soil acidity
C.Soil pH
D.Base saturation
Bulk density is denoted by:
A.Weight of the given soil sample volume of the same soil sample (g/c.c.)
B.Volume of the soil sample/Weight of the soil sample (g/c.c.)
C.Weight of the soil sample x 100/Volume of the soil sample (g/c.c)
D.None of these
By the formulae d = PW x As x D/100 we can calculate:
A.Quantity of irrigation water
B.Depth of irrigation water
C.Quality of irrigation water
D.None of the above
Zn, Fe, Cu, B, Mn and Mo are called micronutrient, because they are:
A.Nutrients of microscopic significance
B.Nutrients, which produce microscopic effects
C.Nutrients that is required in minute qualities
D.Nutrients required by micro-organisms