blain air permeability apparatus, (as per specifications of is:5516) the variable flow type air-permeability apparatus (blane type) shall consist essentially of a means for drawing a definite quantity of air under a falling pressure head through a...
Crop production and its environmental effects depend on the quality of soil test kit. Soil and water are life lines of plants and crops. Management of soil testing kits based on regular testing of soil and water is the master key to systematic and profitable agricultural...