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題名 | 豬糞尿污泥在盤固草地之利用= |
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作者 | 盧啟信; 許福星; |
期刊 | 畜產研究 |
出版日期 | 19940900 |
卷期 | 27:3 1994.09[民83.09] |
頁次 | 頁219-226 |
分類號 | 434.2311 |
語文 | chi |
關鍵詞 | 豬糞尿污泥; 盤固草; 產量; 品質; 土壤肥力; Pig waste sludge; Pangolagrass; Digitaria decumbens; Yield; Quality; Soil fertility; |
中文摘要 | 本試驗的目的,在探討施用豬糞尿污泥對盤固草產量、品質及土壤理化性質的影響。試驗分三處理; 包括1. 對照組(CK); 年施用化學肥料,N:P2O3:K2O=460:144:300 kg,ha。2. 化學肥料加污泥組(S1); 一半氦肥由污泥取代。3. 污泥組(S2);全部氮肥由污泥取代。S1及S2的磷及鉀肥施用最如對照組。試驗結果顯示;土壤之Ph及導電度(EC)隨著污泥的用量增加而提高。土壤肥力方面,除有效性鉀,沒有顯著差異外,有機質、全氮、有效性磷、有效性鈣、有效性鎂及可抽出性銅,均雕污泥的用量增加而提高。盤固草產量方面,S1經產量最高,其次為CK組,S2組產量最差。盤固草成分方面,粗蛋白質以CK組及S1組較S2組有較高的含量。而施用污泥較多者,磷有較高趨勢。其餘成分,三處理間沒有明顯差異。 此試驗結果顯示:豬糞尿污泥不僅可供給作物生長所需的養分,且是理想的土壤改良劑,對於酸性土壤酸鹼度的調整,具有明顯的效果,同時可提高土壤肥力。唯其銅含量較高,長期施用污泥,須不斷的追蹤調查,避免重金屬銅在土壤中過度累積造成污染,或與其它有機或無機肥料混合施用,降低銅含量,以符合有機肥料銅含素之標準。 |
英文摘要 | Much pig waste sludge is produced during anaerobic and aerobic fermentations of 3-step method for treating pig waste in Taiwan. Objectives of this study were to determine effects of pig waste sludge on forage yield and quality of pangolagrass (Digitaria decumbens), and physical and chemical properties of soil. Three fertilizer treatments were included in pangolagrass pasture, A254, namely, (1) CK: chemical with N:P2O5:K2O=460:144:300 kg/ha/year, (2) S1:half chemical N fertilizer of CK replaced by pig waste sludge, and (3) S2: all chemical N fertilizer of CK replaced by pig waste sludge. The results showed that oil pH, EC and soil fertility, such as organic matter, total N, exchangeable P, Ca, Mg, and extractable Cu, were increased in treatments with pig waste sludge. Forage yield of pangolagrass in S1 was the highest among treatments, while that of treatment S2 received no chemical nitrogen fertilizer was the lowest. Crude protein of pangolgrass in treatments CK and S1 were greater than treatment for S2. However, both phosphate and calcium contents were increased in pangolgrass applied with pig waste sludge. No significant effects were observed on contents of ADF, NDF, K, Mg and Cu in pangolagrass among treatments. It is concluded that pig waste sludge is not only a good organic fertilizer to provide nutrients for plant growth, but also an excellent material to adjust soil pH in acid sil and increase soil fertility. However, pig waste sludge contained high Cu. We needed to determine if Cu is accumulated in soil after long-term application. |
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