Soil Science Studies Quiz (15)

Proportion of sand, silt and clay in soil is called? 

An important nutrient affecting nodulation is?

The size of silt fraction according to USDA system is ?

Nutrient deficiency responsible for heart rot in sugar beet is?

The micronutrient which takes part in the fixation of atmospheric nitrogen by legumes is?

Amount of N2 in FYM is?

Which micronutrient is most deficient in Indo-Gangatic alluvium soils?

Black soil is most suitable for the cultivation of?

The concentration of carbon dioxide found in the soil is?

Which group is required for chlorophyll synthesis?

Most salinity tolerant crop among the seed spices is?

Sulphur solubilizing bacteria?

Blue-green algae is also known as ?

Which type of N fertilizers should be avoided in paddy crop?

Specific heat of soil ………. (cal/g)?

Which of the following fertilizer is highly analyzed in nature ?

During photosynthesis, bulk fixation of carbon takes place in?

In an average well decomposed FYM(Farm Yard Manure) contains ?

The slow process of conversion of dead vegetation into coal is known as?

Microbial population of a soil in general?

Which is the best method to prevent soil erosion?

Tensiometeres measure soil moisture tension (bar) only up to?

Which of the following soil has the highest water holding capacity?

Which of the following is not a sedimentary rock?

What is the range of soil pH?

Deficiency of Ca in groundnut causes?

Trench method of FYM preparation is also known as?

Calcium cynamide contain?

The removal of excess water from ground surface is called as ?

Best method of irrigation in potato crop is?