Slow‐release cobalt fertilisers: What release rate is required?

References

• Andrews , E. D. 1971 . Cobalt deficiency in sheep and cattle , Wellington, NZ : Government Printer .
   Google Scholar
• Drake , C. F. Controlled release glass . US Patent 4,350,675 . 1982 .
   Google Scholar
• Grace , N. 1994 . “ Cobalt ” . In Managing trace element deficiencies , 24 – 34 . Palmerston North : AgResearch .
   Google Scholar
• Hawke , M. F. , O'Connor , M. B. , Johnston , T. M. J. , Waller , J. E. and Allison , B. 1994 . Monitoring cobalt status: experiences in the central North Island. . Proceedings of the New Zealand Grassland Association , 56 : 249 – 254 .
   Google Scholar
• Knott , P. 1989 . Glasses ‐ agricultural application. . Glass Science and Technology ‐ Glastechnische Berichte , 62 : 29 – 34 .
   Google Scholar
• Longhurst , R. D. , Hawke , M. F. and O'Connor , M. B. 1997 . Trace element status on sheep‐beef farms in the Raglan‐Franklin districts. . Proceedings of the New Zealand Grassland Association , 59 : 17 – 21 .
   Google Scholar
• Metherell , A. K. 1989 . The cobalt enigma ‐ some observations and strategies for Otago and Southland. . Proceedings of the New Zealand Grassland Association , 50 : 101 – 108 .
   Google Scholar
• Perrott , K. W. and Kear , M. J. 2000 . Laboratory comparison of nutrient release rates from fertilizers. . Communications in Soil Science & Plant Analysis , 31 : 2007 – 2017 .
   Web of Science ®Google Scholar
• Sherrell , C. G. 1990a . Effect of cobalt application on the cobalt status of pastures. 1. Pastures with history of regular cobalt application. . New Zealand Journal of Agricultural Research , 33 : 295 – 304 .
   Web of Science ®Google Scholar
• Sherrell , C. G. 1990b . Effect of cobalt application on the cobalt status of pastures. 2. Pastures without previous cobalt application. . New Zealand Journal of Agricultural Research , 33 : 305 – 311 .
   Web of Science ®Google Scholar
• Sherrell , C. G. 1990c . Effect of cobalt application on the cobalt status of pastures. 3. Comparison of chelate and sulphate as cobalt sources for topdressing deficient pastures. . New Zealand Journal of Agricultural Research , 33 : 313 – 317 .
   Web of Science ®Google Scholar
• Soodbiswas , N. , Basu , S. K. , Bhattacharyya , S. K. and Chaudhuri , A. K. 1999 . Development of boron and zinc containing water soluble glass for agricultural application. . Fertiliser‐News , 44 : 49 – 51 .
   Google Scholar
• Telfer , S. B. , Servas , G. and Knott , P. Water soluble glass articles, their manufacture, and their use in the treatment of ruminant animals . US Patent 4,482,541 . 1983 .
   Google Scholar
• Telfer , S. B. , Servas , G. and Knott , P. Water soluble glass articles, their manufacture, and their use in the treatment of ruminant animals . UK Patent Application GB 2116454A . 1986 .
   Google Scholar