Western Triangle Agricultural Research Center, Conrad, MT 59425. Greg Kushnak, Grant Jackson, Ron Thaut, and John Miller, Western Triangle Agricultural Research Center, Conrad, MT 59425.
Low rates result in green kernels and poor color in the harvested grain.
High rates can reduce kernel size below industry requirements and possibly influence test weight. Nitrogen fertilizer is essential for durum to achieve adequate hard vitreous amber color, and may interact with seed rate to affect kernel characteristics. The objectives were to determine the optimum range of seed rates in durum, to determine N requirements for desired protein and vitreous levels, and to compare the responses between durum and spring wheat. Year 2000 is the second year of this study. Agronomic and kernel characteristic data are presented in Table 8s .