Studies on the cultivation of spring wheat [Triticum aeativum] seeded in early winter in central Hokkaido [Japan]: Effect of the method of nitrogen application on the bread-making quality
2004
Sato, M. (Hokkaido. Central Agricultural Experiment Station, Naganuma (Japan)) | Tsuchiya, T.
Spring wheat was sown in early winter, and the appropriate amount and application timing of nitrogen (N) fertilizer to obtain good bread-making quality were examined. N fertilizer of 4-16gNmE-2 in total was applied in a lump just after snow melting or in divided doses, once just after snow melting (4-13gNmE-2) and once at the flag-leaf stage or heading stage (3-6gNmE-2). In the lump dosing, the application of more than 13gNmE-2 increased the flour protein content and the ratio of loaf volume, and decreased die flour brightness, although the brightness was better than in the spring seeded wheat (control). N dressing at the flag-leaf emergence stage or heading stage increased die flour protein content, dough development time of farinogram and the ratio of loaf volume, but decreased the flour brightness. Moreover, the increase of the amount of N fertilizer and the dressing of N increased the flour protein content. We considered that the increased amount and divided application of N for early winter seeded spring wheat increased not only yield and protein content but also increased die bread-making quality.
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