Effects of Nitrogen or Phosphoric-acid Application on the Wheat Noodle Quality in Different Soil Type.

Abstract

The quality of Asakazekomugi and Norin 61 cultivated in Grey lowland soil (GLS), Red soil (RS), Thick Hi-humic Andosol (THA) and Light-colored Andosol (LCA) were examined. Grain and flour crude protein contents, water absorption (Ab.) of Farinogram and viscoelasticity of eating test of noodle of wheat cultivated in RS were lowest. The wheat cultivated in THA and LCA had lower grain ash contents and higher grain and flour crude protein contents than those in other soils. The elasticity of dough of wheat cultivated in THA and LCA were greater than that in other soils. Grain yield and crude protein content in RS increased by the application of stable manure and top-dressing of nitrogen. In THA and LCA, grain yield increased and protein contents decreased by the application of stable manure and phosphoric-acid. Consequently, the crude protein contents had been appropriate values in these soils. The lightness of flour and noodle color of wheat cultivated in THA and LCA were improved by the application of stable manure and phosphoric-acid. In LCA, eating test score of Asakazekomugi and Norin 61 were increased. In RS and THA, eating test scores of Norin 61 were also increased by the improvement of fertilizer application.