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題 名 | 施灌厭氣發酵豬糞尿廢水對尼羅草生長、牧草地土壤及滲漏水之影響=Effects of Irritation of Pig Wastewater with Anaerobic Fermentation on the Growth of Nilegrass (Acroceras macrun) Pasture Soil and Leaching Water |
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作 者 | 盧啟信; 許福星; | 書刊名 | 畜產研究 |
卷 期 | 44:1 2011.03[民100.03] |
頁 次 | 頁81-93 |
分類號 | 437.113 |
關鍵詞 | 尼羅草; 豬糞尿廢水; 牧草產量; 土壤; 滲漏水; Nilegrass; Acroceras macrun; Pig wastewater; Forage yield; Soil; Leaching water; |
語 文 | 中文(Chinese) |
中文摘要 | 本試驗的目的在探討經厭氣發酵後之豬糞尿廢水施灌於尼羅草地,對牧草產量、品質及土壤與土層滲漏水之影響。本試驗於尼羅草台畜草一號牧草地,每年灌施相當每公頃400、600、800及1200 kg氮素經厭氣發酵之豬糞尿廢水。結果顯示,1 m深之滲漏水全氮、銨態氮、硝酸態氮、溶磷及導電度(EC)等,隨著廢水施灌量的增加而提高,且試驗區表土之有機質、全氮、有效性磷、交換性鉀及EC 等均顯著的增加,而交換性鈣及鎂等含量及pH 值雖有增加的趨勢,但未達顯著差異。尼羅草牧草產量及植體中粗蛋白質、銨態氮、硝酸態氮、磷及鉀等含量均隨著廢水施用量的增加而提高。然每年每公頃灌施相當1200 kg 氮素之廢水,牧草中K 及Mg+Ca 之當量比亦未超過對動物生理可能造成影響的2.2 值。寒冷季節如施用相當800 及1200 kg 氮素之廢水,植體中無機氮的含量可能超過1,000 ppm,對動物健康不利,夏季則無此顧慮。由上述結果可知,厭氣發酵後豬糞尿廢水施灌於尼羅草地,有助於提高尼羅草產量及改善土壤地力。若長期大量施灌時,則必須長期監測植體中無機氮的含量及地下水之品質。 |
英文摘要 | The objectives of this study were to understand the effects of irrigation of pig waste water with anaerobic fermentation on forage yield and quality of nilegrass (Acroceras macrun ) and the properties of soil and leaching water. Four quantities of waste water irrigated were equivalent to 400, 600, 800 and 1,200 kg N ha-1year-1, respectively. The electric conductivity (EC), the total N, NH4 + and NO3 - and the dissolved P in leaching water collected at 1 m depth were increased with increasing amount of irrigation. The contents of organic matter, total N, available P, exchangeable K and EC in surface soil increased significantly with the amount of waste water. However, no significant difference was observed in soil pH and the contents of exchangeable Ca and Mg in soil treated with different amounts of waste water. The forage yield and the chemical constituents, i.e., crude protein, ammonium nitrogen, nitrate nitrogen, P and K in the plants increased with the amount of irrigation. However, the ratio of K / (Ca+Mg) didn’t exceed 2.2 and won’t affect animal health, even though the irrigation with the waste water being equivalent to 1,200 kg N ha-1year-1. The contents of inorganic N in the plant grown in the cool season would exceed 1,000 ppm when nilegrass was irrigated with the waste water equivalent to 800 and 1200 kg N ha-1year-1. Based on these results, application of pig waste water with anaerobic fermentation in nilegrass pasture increased forage yield and improved soil fertility. However, the content of inorganic N in nilegrass and the quality of leaching water from soil layers should be monitored after long-term irrigation with pig waste water. |
本系統中英文摘要資訊取自各篇刊載內容。