The Effects of Liquid Pig Manure Application on the Production of Japanese Millet (Echinochloa crusgalli) Soil Properties, and the Chemical Characteristics of Leaching Water

Studies were carried out to evaluate the effect of liquid pig manure on the production of Japanese millet, the chemical characteristics of pasture soil and leaching water. The study was undertaken from June to September 2005. Randomized complete block design was used to allot four treatments: T1 (no fertilizer), T2 (N : 200 kg/ha, p : 150 kg/ha, K : 150 kg/ha), T3 (liquid pig manure containing 1.7% DM 200 kg N/ha) and T4 (liquid pig manure containing 7.0% DM 200 kg N/ha). Leaching water was sampled at 21 August (1st time), 9 September (2nd time) and 26 September (3rd time), 2005, respectively. No significant differences in the dry matter yield of Japanese millet was found among the four treatments, whereas the plant lengths of Japanese millet were higher in the T2, T3 and T4 than in T1 (p content in leaching was not different among the four treatments. content in leaching water sampled in 1st time was high in T4, but in T3 from 3rd time (p, Cl, Mg and Na in leaching water sampled in 1st time were high in a high DM liquid pig manure.