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題名 | 強酸性土壤改良對食用甘藷生育、產量及品質之影響=Effect of Application Soil Amendments on the Growth of Sweet Potato (Tainung 66) in Strongly Acid Soil |
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作者 | 劉廣泉; 廖乾華; | 書刊名 | 桃園區農業改良場研究彙報 |
卷期 | 50 2002.09[民91.09] |
頁次 | 頁24-32 |
分類號 | 434.317 |
關鍵詞 | 強酸性土壤; 甘藷; 苦土石灰; 牛糞堆肥; 有機肥; Strongly acid soil; Sweet potato; Dolomite powder; Cattle compost; Organic fertilizer; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗旨在探討台北縣萬里鄉地區強酸性土壤施用土壤改良劑對台農66號食用甘藷生育及品質之影響。試驗採逢機完全區集設計,四種處理,分別為:A. 施用苦土石灰3ton/ha加牛糞堆肥10ton/ha;B. 施用苦土石灰3ton/ha加有機肥5ton/ha;C. 施用苦土石灰3ton/ha;D. 不施土壤改良劑(對照組)。試驗結果顯示,插植前土壤pH值為4.1--4.2,收穫時施用苦土石灰或添加有機質肥料處理之土壤pH值,提升0.2--0.3單位,對照區降低0.1單位。三種土壤改良劑處理均可促進甘藷植株生育,提升葉片中N、P、K、Ca、Mg之營養含量,增加甘藷塊根收量及塊根可溶性固形物含量,且與對照處理之差異達顯著水準。其中以苦士石灰3ton/ha加有機肥5ton/ha之效果最佳,較對照處理增產的,290kg/ha,增產率高達50%,全可溶性固形物含量達16.6°Brix,較對照區顯著提升2.6°Brix。施用土壤改良劑每分地可增加淨收益達16,630—22,200元。 |
英文摘要 | The effects of application soil amendments on the growth, quality, and yield of sweet potato (Tainung 66) in strongly acid soil were investigated at Wanli village, Taipei county. A randomized complete block design with four replications was used. Four treatments included the applications of 3 ton of dolomite powder and 10 ton of cattle compost, 3 ton of dolomite powder and 5 ton organic fertilizer, 3 ton of dolomite powder per hectare and the untreated check. The soil pH of test field before experiment was about 4.1 and increased 0.2--0.3 units at harvest by applying soil amendment, but decreased about 0.1 unit in the treatment of without applying soil amendment. The three treatments with applying soil amendments could improve the plant growth of sweet potato and increased the N, P, K, Ca and Mg contents of leaves and increased the content of soluble solid compound in root. Agricultural characteristics of sweet potato were significantly different between applying soil amendment treatments and without applying soil amendment. The growth performance of sweet potato by applying 3 ton of dolomite powder and 5 ton of organic fertilizer was the best among the treatments. The yield of root was increased in the all treatments of applying soil amendment. The root yield of 35,650 kg per hectare was the highest among treatments which was about 50% more than without applying soil amendment treatment. The soluble solid compound content of 16.6 °Brix obtained from applying 3 ton of dolomite powder and 5 ton of organic fertilizer which was 2.6 °Brix more than that of without applying soil amendment treatment. Application of soil amendments to grow sweet potato Tainung 66 at Wanli area could increase the net income of 16,630 to 22,200 NT$ per 0.1 hectare. |
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