Gupta, P K. A handbook of soil, fertilizer and manure / P. K. Gupta. - 2nd ed / . - Jodhpur : Agrobios , 2007. - 591p. : figs ; 21cm . Includes glossary ISBN: 8177541528 Rs. 795.00 Subjects--Index Terms: FERTILIZERS,SOIL CONDITIONERS-HAND BOOK Dewey Class. No.: 631.8 / GUP/H