Microbe involved in biological oxidation of ammonium ion

Flooding is the method used for the reclamation practice in which of the problematic soil?

The ESP of saline soils is _____%

Which of the following actinomycetes is responsible for nitrogen fixation?

Soil health card with the tagline “Swasth Dharaa, Khet Haraa” was launched on ____.

Which soil property is least affected by the size and arrangement of soil particles?

What is the primary reason for the non-expanding nature of fine-grained micas within the 2:1-type minerals?

Toxicity of which element leads to the unavailability of iron and zinc

Soil texture is determined most commonly by which method? 

Which of the following group of soil is the largest and most important group of India?

Which method measures soil moisture content by drying a sample in an oven and determining the percentage of moisture loss?