Soil Science Test Subjective Quiz (3)

All the following organisms secrete growth promoting substances except?

Bridge irrigation system was first introduced by ?

Gneiss is example for?

Maize can grow very well in the soils of pH ranging from?

Total porosity of clay soil is?

Drip or trickle method of irrigation was first adopted by?

Mycorrhiza mainly helps in the uptake of ?

The instrument, which is used for sowing of seed with fertilizer together at a time, is?

Low total iron content of soil is the basis for plant deficiencies?

Wind erosion is more in?

Which of the following is a micronutrient?

A soil survey undertaken to prepare resource inventory of large areas is called as?

If an acid soil is limed to the pH level – enhances nitrification?

Flow of nitrogen in soil mainly due to _____?

Field capacity is a point at which?

Which of the following cakes is not edible?

In Which fertilizer contains sulphur also? 

Which of the following nutrient play the most effective role in controlling rate of transpiration?

Plasticity of soil can be determinated by using?

Which is the correct sequence of soil erosion ?

Cotton is cultivated in …… soil?

Although a deficiency of any one of the elements listed may result in chlorosis, only one of these elements is an element found in chlorophyll. Which is it?

Cation exchange capacity of soil depends on content of?

Layer silicates are?

Normally recommended N+P+K dose for soybean is kg/ha, respectively?

Deficiency of which element in soil causes chlorosis in plants?

The smallest size soil separate is?

Soil transported through wind is?

Hemoglobin contains ?

Which of the following type of soil degradation is most dominated in drylands of dry-subhumid climate ?