Nitrogen fixing and multipurpose tree species for afforestation: Recent researches in ecology, environment and pollution -7 - New Delhi: Today and Tomorrow's Printers & Publishers, 1991 - 306p. ISBN: 8170194023 Subjects--Topical Terms: Agriculture Subjects--Index Terms: Treatment of seeds Planting method Universal Decimal Class. No.: 631.461.5+630*233 / N1