頁籤選單縮合
題名 | 廢棄香菇木屑堆肥研製及對小白菜之肥效=Composting Shiitake Sawdust Waste and Effects of Applied Composts on Growth of Brassica Chinensis L. Makino |
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作者 | 簡宣裕; 莊作權; | 書刊名 | 中華農業研究 |
卷期 | 46:1 1997.03[民86.03] |
頁次 | 頁70-81 |
分類號 | 435.232 |
關鍵詞 | 堆肥化; 廢棄香菇木屑堆肥; 小白菜; Composting; Shiitake sawdust waste compost; Brassica chinensis L. makino; |
語文 | 中文(Chinese) |
中文摘要 | 本研究目的為探討將廢棄香菇木屑與雞糞以三種不同比例配方混合後研製堆肥, 瞭解堆肥化過程的成分變化,及不同肥培對小白菜生長的影響。結果顯示於發酵過程中,大致 三種配方之 pH、全氮濃度均逐漸增加,電導度先下降然後再上升, 有機碳含量與碳氮的比 值、氨氣濃度逐漸減少。木屑與雞糞依乾重以 16:4 或 32:4 混合者,氨氣濃度顯著較少 ,且可在八星期內趨近於穩定腐熟。 三種配方堆肥的 pH 值、全氧化鈣濃度、全氧化鎂濃度相近,電導度、全氮濃度、全磷濃度 及全鉀濃度,則以配方 A ( 8:4 ) > 配方 B ( 16:4 )> 配方 C ( 32:4 )順序遞減 。 將堆肥施入土壤,前三天內土壤的微生物菌數最多。盆栽試驗結果獲知配方 A 堆肥最有 利於小白菜生長,其次為配方 B 堆肥。 盆栽土壤 3 kg 施用 12 g 堆肥,若把堆肥養分( 氮、磷、鉀)含量,按 1/5 或 1 /2 為有效養分估算, 然後以化學肥料補足,相當于每盆 施用 0.360g 有效性氮、0.215g 磷酐、0.288g 氧化鉀,進行盆栽試驗,小白菜產量皆比只 施用化學肥料者高,且達顯著差異水準。 |
英文摘要 | The objective of this study was to investigate the composition changes of shiitake sawdust waste composting with chicken feces at different rates, 8:4(recipe A), 16:4 (recipe B), and 32:4 (recipe C), and the effect of application of composts on the growth of Brassica chinensis L. Makino. Composting changes in pH, total N, organic C and C/N for the recipes had similar trends. Compost pH increased with time, and reached above 8.0 after 4 weeks of composting. Total nitrogen concentration started to increase 3 days after composting and leveled off after 4 weeks. Organic carbon content and C/N ratio reduced subsequently with time. Electrical conductivity decreased initially, but increased at 6 weeks after composting. NH �� gas concentrations of recipe B and recipe C were significantly lower than that of recipe A. pH, CaO, MgO contents of the composts of 3 recipes were similar, but electrical conductivity as well as percent N, P �� O �� and K �� O of the composts were in the order of recipe A>recipe B>recipe C. Soil microorganism population reached t o the highest level within 3 days when recipe B compost was applied to soils. It is found that recipe A compost was more suitable for B. chinensis growth than those of recipe B and recipe C composts. The pot experiment also showed that the growth of B. chinensis with application of 12 g compost/pot was significantly lower than that of the chemical fertilizer treated plot, to which 0.360g N/pot, 0.215 g P �� O �� /pot and 0.288g K �� O/pot were applied. |
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