Which among the following horticulture crop has lowest

Which of the following element is mobile in soil but immobile in plants? 

In a well-aggregated soil, how does soil porosity influence the movement of air and water?

Which clay mineral group is known for its ability to swell and expand when wetted?

Which mineral is considered highly resistant to weathering due to its densely packed structure and lack of substitutions?

Which factor most significantly influences soil bulk density?

…………………………means the crop producing capacity of a soil which is measured in terms of yield (bio-mass).

……………………………. is the prominent member of 1:1 type group in which one tetrahedral and one octahedral layer is present.

What is the term used for the study of soil in relation to higher plants?

Choose the best answer from the following options

Which of the following primary tillage operation is used to invert the soil partially or completely?

Microbe involved in biological oxidation of ammonium ion to nitrite ion is