Studies on application of the silicate fertilizer on the grassland, 2. Effects of the silicate fertilizer application on in-vitro digestibility and nutrient productivity of grasses
1988
Park, G.J. | Lee, H.H. | Shin, J.S. | Kim, D.H. (Rural Development Administration, Suwon (Korea R.). Livestock Experiment Station)
To find out the effects of silicate fertilizer application on in-vitro digestibility and nutrient productivity of grasses on the pasture mixtures, the experiment was treated with two same levels of lime and silicate fertilizer (2,000 and 4,000 kg/ha) and lasted on newly developed hilly area near Suweon from August 1984 to October 1986. Crude protein content of grasses with silicate fertilizer application was a little higher than those of lime and control plots, but crude fiber content was reverse tred. Average in-vitro dry matter digestibility with lime application was slightly increased than that of silicate fertilization, however, the in-vitro organic matter digestibility was the highest at silicate fertilizer plot with insignificance in all treatments. Average energy productions with silicate fertilization were much more increased by 20-28% and 29-32% per ha than those of without lime/silicate fertilizer and with lime application, respectively. Mineral contents and K/(Ca+Mg) equivalent ratio of grasses at silicate fertilizer plot were slightly increased among the treatments. However, considering the factors of occurring grass tetany and nutrient balance of animals, application of silicate fertilizer on the grassland was desirable
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