रामधारी सिंह 'दिनकर '

The deterioration or loss of the productive capacity of the soils due to various reasons like human activity is called as ____

Which of the following nutrient is 4th most imp nutrient for Oilseeds and pulses? 

Salinization in agricultural soils is primarily caused by:

The symbiotic association ,Mycorrhizae help in absorption of:

Super rice is developed by

Vertical distribution of microclimate is:

Inheritance of ABO blood group system is an example of____

Pineapple is a false fruit and is formed from 

The rotation of the Earth contribute to the development of high and low-pressure systems by