矽酸爐渣用量影響甘藍、水稻生長及植體重金屬含量研究

Effects of Application Rates of Silicate Slag on the Growth and Heavy Metal Contents of Cabbage and Rice Plant

羅秋雄(Chiou-Shiung Lo) ； 莊浚釗(Chun-Chao Chuang) ； 洪阿田(Ah-Tyan Hung)

《桃園區農業改良場研究報告》 13期 (1993/06) Pp. 27-39

https://doi.org/10.29567/ZHWHGX.199306.0003

摘要

本研究目的為探討水田大量施用矽酸爐渣對作物生長及植體重金屬含量之影響，選定桃園紅壤及屏東酸性粘板岩沖積土兩處為試驗田。以矽酸爐渣用量0、3、6、12、24及36 t/ha為處理，小區面積18 m^2，四重複，採完全逢機區集設計。爐渣全量於第一作甘藍種植前撒施且與土壤充分混合，第二作水稻不再施用，繼續觀察其對後作之影響。其結果兩試區甘藍及水稻植體可食用部位（甘藍：葉球，水稻：糙米及白米）之鐵、錳、鋅、鎳及鈦含量均因土壤pH值昇高而下降，銅及鉻部分施用矽酸爐渣之處理雖有微量提高，但其各別之最高含量仍遠低於作物植體的毒害臨界濃度。

關鍵字

甘藍(Cabbage) ； 水稻(Rice) ； 矽酸爐渣(Silicate) ； 重金屬(Heavy metals)

並列摘要

The objectives of this study were to determine the effects of six application rates of silicate slag on crop yields and the content of heavy metals in the crops. Two experimental farms belonging Taoyuan Latosol and Pintnung Alluvial soil were selected. Silicate slag was applied at the rates of 0, 3, 6, 12, 24, and 36 t/ha. The total amount of silicate slag was completely mixed with top-soil before planting the first crop(cabbage)and no slag was used in the succession crop(paddy rice).The contents of Fe, Mn, Zn, Ni and Ti in the rice and cabbage tissue tended to decrease with increasing slag application rates, with exception of Cu and Cr were slightly increased. But they did not reach the critical toxic concentration for crop production.