Studies on winter-seeding cultivation of winter wheat [Triticum aestivum]
2008
Ogiuchi, K.(Iwate-ken. Agricultural Research Center, Kitakami (Japan))
In wheat cultivation by usual autumn-seeding cultivation in Iwate Prefecture, the work for wheat sowing overlaps with the harvesting of the summer crop such as rice, and this is a big problem for the farmers. In the drained paddy field after rice cultivation, it is not possible to seed wheat at the proper time because the plowing work is difficult due to rain in autumn and the insufficient drain measures. In this study, the technology of winter-seeding cultivation, seeding winter wheat before the continuous snow cover, was developed to solve these problems. The overwintering ability of winter wheat seeded before the continuous snow cover was investigated, and a suitable variety and the best seeding method for winter-seeding cultivation were determined. Then, I developed a suitable method of nitrogen fertilizer application to obtain a high grain yield and high grain quality, and a disease and weed control system for winter-seeding cultivation. Moreover, I found that the winter-seeding cultivation was effective in reducing the disease incidence of wheat yellow mosaic. I found that the processing quality in winter-seeding cultivation was the same or better than that in standard autumn-seeding cultivation.
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