Meelu, O. P. Green manuring for soil productivity improvement / by O.P. Meelu, Yadvinder-Singh, Bijay-Singh. - Rome : Food and Agriculture Organization of the United Nations, 1994. - x, 123 p. : ill. ; 30 cm. - World soil resources reports 76. 0532-0488 ; . Includes bibliography : p. 83-113. ISBN: 9251035156 Subjects--Topical Terms: Green manuring.--------Soil productivity--------