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Agricultural anhidrons ammonia

technology and use : proceedings of a symposium

Drainage for agriculture

  • Van Schilfgaarde, Jan

Methods of soil analysis

part 3, Chemical methods

  • Soil Science Society of America

Multiple cropping

proceedings of a symposium

  • Papendick, R. I.

Replenishing soil fertility in Africa

proceedings of an International Symposium cosponsored by Divisions A-6 (International Agronomy) and S-4 (Soil Fertility and Plant Nutrition), and the International Center for Research in Agroforestry, held at the 88th Annual Meetings of the American Society of Agronomy and the Soil Science Society of America, Indianapolis, Indiana, 6 November 1996

  • International Center for Research in Agroforestry

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