Fjölrit RALA - 01.07.1976, Page 32

Fjölrit RALA - 01.07.1976, Page 32
6. Helstu heimildir. 1. F.E. Allison: Soil organic matter and its role in crop production, Developm. in Soil Science _3. Elsevier Sc. Publ. Co., Amsterdam, London, N.Y. 1973. 2. J. Benton Jones, jr: Interpretation of plant analyses for several acronomic crops. SSSA sp. publ. series, Wisconsin 1967. 3. Björn Jóhannesson: 1slenskur j arðvegur. Reylcjavilc 1960. 4. Björn Sigurbjörnsson og Ingvi Þorsteinsson; Rannsólcnir á slcarna. Garðyrlcjuritið 1962. 5. Björn Sigurbjörnsson og Ingvi Þorsteinsson: öbirtar slcýrslur fr& 1961-62. 6. Per Borten: Framsöguerindi -um Klna í studentersamfunded. Trondhjem 1974. 7. Friðrilc Pálmason: Munnlegar upplýsingar. 8. Guðmundur Jónsson: Ritgerð ~um búfjáráburð. Búnaðarritið 1942. 9. Grétat Guðbergsson: Myndun móajarðvegs í Slcagafirði. Islenslcar landbúnaðarrannsólcnir, 7. árg. 10. Joul Log: Forelesninger i. Jordbunnslære ved N.L.H. Del II, NLH/Universitetsforlaget 1959. 11. J.A. Martini, J.A. Palencia: Soils derived from volcanic ash in Central-America, 1: Andepts. Soil science 1975. 12. J.M. Nilsen: Karplantenes ernæringstilstand. D S R forlag Kaupmannahöfn 1973. 13. F.B. Salisbury and C. Ross: Plant Physiology. Wadsworth publ.Co.Inc. Belmont, California, 1969. 14. M.J. Satrina.: Large scale composting. Polution review Nr. 12. Notes data corporatioi)., N.Jersy, London, 1974.

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