JAISWAL, P C
SOIL, PLANT AND WATER ANALYSIS - 3rd ed. - LUDHIANA : KALYANI, 2011. - 450 p.
CHEMICAL ANALYSIS OF SOIL
PHYSICAL ANALYSIS OF SOIL
631.4 JAI/SO
SOIL, PLANT AND WATER ANALYSIS - 3rd ed. - LUDHIANA : KALYANI, 2011. - 450 p.
CHEMICAL ANALYSIS OF SOIL
PHYSICAL ANALYSIS OF SOIL
631.4 JAI/SO