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題 名 | 施用豬糞六年後對盤固草地土壤理化性質之影響=Soil Physical and Chemical Properties of Pangolagrass Pasture after Six Annually Surface--Applied Swine Manure |
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作 者 | 謝昭賢; 洪嘉謨; 洪國源; 許福星; 陳碧慧; | 書刊名 | 水土保持學報 |
卷 期 | 29:2 1997.06[民86.06] |
頁 次 | 頁93-105 |
分類號 | 434.22 |
關鍵詞 | 豬糞; 盤固草; 滲透率; 有機物; 理化性質; Swine manure; Pangolagrass; Digitaria decombens stent; Infiltration rate; Organic matter; Physical properties and chemical properties; |
語 文 | 中文(Chinese) |
中文摘要 | 本試驗在盤固草(Digitaria decombens Stent.)地以表面施肥方式,利用完全逢 機區集方式設計,四處理,四重複,進行豬糞及化肥對草地土壤理化性質之影響試驗。處理 別分豬糞區 (SM)、豬糞化肥區 (SC)、化肥區 (CF) 及對照區 (CK)。SM 區依豬糞相當於 N 400 kg/ha/yr 之量, CF 區為每年施化學肥料 N:P �� O ��:K �� O=400:145:150 kg/ha, SC 區為每年施用一半豬糞一半化肥,CK 區則不施肥。 經 6 年後測定土壤之物理及化學性 質。 本試驗地所測得之土壤最終滲透率在處理 SM、SC、 CF 及 CK 區各為 1.66、 1.54、 1.48 及 1.02 cm/hr, 屬於美國水土保持署 (SCS) 規範之 C、C、C 及 D 級水文土壤組, 亦均屬於本省環保署規定之慢速滲濾系統。以表面施肥方式,除施用豬糞可增加土壤初始滲 透率外,不論表面施用豬糞或化肥並不能改善土壤之物理性質:如總體密度、孔隙率及最終 滲透率。 長期表面施用豬糞有助於增加土壤之有機質、總氮、P、K、Ca、Mg、Cu 含量及增 加土壤 pH 值。因此長期施用豬糞可改善地表土壤肥力,改善土壤之酸性,但長期施用有機 豬糞除 N 外,其他養分有累積之虞。 然盤固草地長期地表施用化肥後,並不能增加土壤中 之化學性質。 因此在盤固草地長期施用豬糞時,除了要避免 P 值之累積外,應個別增加 N 肥之施用量。 |
英文摘要 | The experiment was conducted at pangolagrass (Digitaria decombens Stent.) pasture in southern Taiwan to determine the effects of swine manure and chemical fentilizer on soil physical-chemical properties. Random complete block design with four treatments and four replications was used. The treatments were swine manure (SM, based on N=400 kg/ha/yr), half of swine manure and half of chemical fertilizer (SC), all of chemical fertilizer (CF, N:P �� O ��:K �� O= 400:145:150 kg/ha/yr) and without fertilizer (CK). Soil physical and chemical properties were investigated after six annually surface-applied swine manures. The results shown that the terminal infiltration rates for four treatments of SM, SC, CF, and CK. were 1.66, 1.54, 1.48 and 1.02 cm/hr respectively, equivalent to C,C,C, and D hydrological soil groups as defined by US. Soil Conservation Service (SCS). All are of slow infiltration system as defined by Environment Protection Agency (EPA) in Taiwan. No soil physcial properties could be improved except initial infiltration rate applied swine manure. The soil chemical contents of organic matter, total nitrogen, P, K, Ca, Mg, Cu and pH value increased with swine manure applied. However, increase was not observed for chemical fertilizer application. The concentrations of P accumulated to a high levels in soil after long-term application of swine manure, while the total nitrogen remain very low. Therefore, careful application of swine manure with consideration for long-term should be taken to prevent accumulation of high level P in soil. |
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