Elements essentially required for growth of all plants species are___________________?

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Who gave the equation for study of soil property ?

A. Ziebig B. Newton C. Neil D. Jenny...

The chemical formula of urea fertilizer is_______________________?

A. NH2CONH2 B. [CO(NH2)] C. Both a & b D. None of the above...

Size of clay particle is___________________?

A. 0.02mm B. 0.2mm C. 0.002mm D. 2mm...

An expression of the intensity of the basic or a acidic condition of a liquid or of soil is called_____________________?

A. ESR B. SAR C. EC D. pH...

Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?

A. 250ºC B. 1000ºC C. 550ºC D. 1250ºC...