1. Effect of a new nitrification inhibitor (wax coated calcium carbide) on transformations and recovery of fertilizer nitrogen by irrigated wheat

   • J. R. Freney
   • C. J. Smith
   • A. R. Mosier

   OriginalPaper Pages: 1 - 11

2. Physical properties comparative study of urea of different companies in Pakistan

   • Mukammad Essa Bhatti

   OriginalPaper Pages: 13 - 17

3. Recovery of nitrogen by spring barley from ammonium nitrate, urea and sulphur-coated urea as affected by time and method of application

   • S. S. Malhi
   • M. Nyborg

   OriginalPaper Pages: 19 - 25

4. The phosphorus requirement of different crop species compared with wheat on lateritic soils

   • M. D. A. Bolland

   OriginalPaper Pages: 27 - 36

5. Relationship between electroultrafiltration (EUF) extractable nitrogen, grain yield, and optimum nitrogen fertilizer rates for winter wheat

   • K. Ziegler
   • K. Nemeth
   • K. Mengel

   OriginalPaper Pages: 37 - 43

6. Evaluation of systematic exploitation of tolerance with respect to a declared nutrient content in the production of fertilizers

   • C. Luchinat
   • F. Capozzi
   • P. Sequi

   OriginalPaper Pages: 45 - 53

7. Influence of delaying flood and preflood nitrogen application on dry-seeded rice

   • R. J. Norman
   • R. S. Helms
   • B. R. Wells

   OriginalPaper Pages: 55 - 59

8. Fertilizer value of pig slurries processed by the Promest procedure

   • P. J. van Erp
   • T. A. van Dijk

   OriginalPaper Pages: 61 - 70

9. Nutrient management of forests under stress for improved health and increased productivity

   • R. F. Huettl
   • I. Hunter

   OriginalPaper Pages: 71 - 82

10. Urea-rubber matrices as slow-release fertilizers

    • Z. A. Hassan
    • S. D. Young
    • R. Arizal

    OriginalPaper Pages: 83 - 90

11. Influence of calcium carbonate on the dissolution of Sechura phosphate rock in soils

    • J. S. Robinson
    • J. K. Syers
    • N. S. Bolan

    OriginalPaper Pages: 91 - 99

12. Influence of source, rate, and method of applicating controlled release fertilizer on nutrient release and growth of ‘Savannah’ holly

    • J. M. Ruter

    OriginalPaper Pages: 101 - 106

13. TVA'S fertilizer / pesticide containment program

    • H. C. Mann
    • J. E. Culp
    • F. J. Johnson

    OriginalPaper Pages: 107 - 109

14. The utilization of by-products and waste products in the production of commercial fertilizers

    • W. E. Perry

    OriginalPaper Pages: 111 - 114

15. Nitric acid treated phosphate fertilizer from Eppawala apatite in Sri Lanka

    • K. Tennakone
    • U. T. Weragama

    OriginalPaper Pages: 115 - 119

16. Effect of sampling depth on bicarbonate soil phosphorus test values

    • M. D. A. Bolland

    Short communication Pages: 121 - 124