Soil chemical properties in a grassland receiving long-term applications of anaerobically digested cattle slurry, farmyard manure and chemical fertilizer: A further study for results after the first year
2007
Sawamoto, T.(Rakuno Gakuen Univ., Ebetsu, Hokkaido (Japan)) | Inoue, N. | Matsunaka, T.
Spatial variation in the chemical properties of a grassland soil was studied to obtain a basic understanding of the effects caused by long-term, repeated applications of anaerobically digested cattle slurry, farmyard manure, or chemical fertilizer. The grassland site is located at Rakuno Gakuen University, and was established one year before the measurements began. After one year of application, some soil chemical properties showed spatial variability. Quantities of exchangeable cations in the surface soils differed among the different applied materials. A significant positive correlation was found between base saturation and pH (H2O). Both base saturation and pH (H2O) in the chemical fertilizer plots were the lowest among the four treatments. In order to confirm that these differences were caused by the different fertilizer applications, mass balance analysis and continuous monitoring will be required.
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