Which element is most important for flocculation of soil
pH and pOH are?_________.
Optimum pH for the growth and yield of rice is?
slightly alkaline condition
Availability of boron and molybdenum is greatest under the pH?
Among the following elements which is dominating element in earth crust?
Which rocks are known as stratified rocks?
Slate is formed due to the metamorphism of__________.
Specific gravity of heavy minerals is__________.
Among the following which rocks dominated in earth crust (upto 5 km depth)?
Potential acidity is also known as?
Dominant cations responsible for soil acidity are______.
Which is preferring pH for azatobactor?
The relationship between base saturation and pH is_______.
Soil salinity is mainly due to__________.
Which element is most important for deflocculation of soil?
Which soil type is more badly affected by excessive soluble salts concentration?
Under acidic soils akiochi disease in rice developed due to the toxicity of_________.
Neutralizing value of calcite is?
Availability of Zn and Fe is greatest under the pH?
The pH ranges for most mineral soils_________.
6.0 to 7.0
5.5 to 8.5
3.5 to 10.5
Availability of phosphorus is highest when the reaction is between__________.
5.5 to 7.5
6.0 to 8.0
6.5 to 7.5
H2PO4- ions and HPO4-2 ion are in equilibrium condition in soil at PH________.
Most suitable method for management of acid sulphate soil is_________.
addition of Gypsum
The process of break-down of H- Clay under alkaline condition is known as________.
Number of score out of 25 =
Score in percentage =
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