Manual of soil, plant, water and fertilizer analysis
UPADHYAY, R.M
Manual of soil, plant, water and fertilizer analysis - Ludhiana 2002 - 135p
SOILS -- ANALYSIS
FERTILIZERS -- ANALYSIS PLANT -- ANALYSIS SOILS -- ANALYSIS
631.4 U-4M
Manual of soil, plant, water and fertilizer analysis - Ludhiana 2002 - 135p
SOILS -- ANALYSIS
FERTILIZERS -- ANALYSIS PLANT -- ANALYSIS SOILS -- ANALYSIS
631.4 U-4M