questions: farmer asked a query regarding soil test. 
 answers: remove the upper surface debris from the soil and insert aspade or trowel ```up to a depth of 20-30 cm and take several core sample randomly (about 10-15 samples should be take). almost 1 kg of soil should be collected. after collection mixed your samples in a clean polythene bag or container and submit it to krishi vigyan kendra of your respective district. 
before collection please contact once with the principal scientist of your krishi       vigyan kendra.