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Urea Drilled With Seed Affects Germination And Yield, M G. Mason, A. Loutit, J. A. C. Smith, D. Highman, P. Stallwood
Urea Drilled With Seed Affects Germination And Yield, M G. Mason, A. Loutit, J. A. C. Smith, D. Highman, P. Stallwood
Journal of the Department of Agriculture, Western Australia, Series 4
Trials in 1968 at Burracoppin and York again showed it is safer to topdress urea just before seeding than to drill a mixture of seed and urea.
At all but the lowest urea rates, urea drilled with the seed reduced the number of plants emerging and surviving, and reduced final wheat yields.