Available Zn in the soil, can be determined by using the solution of:
A.1 N NH4 OAC
B.DTPA + CaCl2 (pH 7.3)
C.EDTA + (NH4)2 CO7
D.All of these
Category: Soil Science Mcqs
Crop logging’ is a method of:
A.Soil fertility evaluation
B.Plant analysis for assessing requirement of nutrients for crop production
C.Assessing crop damage
D.Testing sitability of fertilizers
A vertical section of soil body, which shows different layer, is known as:
A.Soil horizons
B.Soil profile
C.Regolith
D.Parent material
Who is the Father of the soil testing?
A.S. Larsen
B.M.L.Jackson
C.M.L. Troug
D.None of the above
Alfisol soils are mostly ______ in respect of their fertility and are used either as crop land or forest or range land:
A.High
B.Medium
C.Low
D.Extremely low
A unit of soil classification as well as soil mapping which is similar to soil series in most of the soil properties except one or two but the area of such a unit is not enough to establish it as a separate series and show on a soil map, is known as:
A.Soil association
B.Soil phase
C.Soil variant
D.None of them
Azotobacter sp. Fix atmospheric nitrogen:
A.As symbiounts on sugarcane
B.As symbiounts on rice
C.As symbiounts on legumes
D.In free soil
Wind laden with soil particles cembodies the abrasive action, which is:
A.Greatly increased
B.Greatly decreased
C.Absolutely unaffected
D.None of these
Bacteria present in the root nodules of legumes plants is:
A.Clostridium
B.Azospirillum
C.Thizobium
D.Azotobacter
A complex mixture of brown amorphous and colloidal substances synthesized by various soil organisms is referred to as:
A.Compost
B.Humus
C.FYM
D.Peat super compost
