頁籤選單縮合
題 名 | 中部柑桔果樹之營養診斷及應用現況調查=The Investigation of the Nutrient Diagnosis and its Status of Application in Citrus Production in Central Taiwan |
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作 者 | 賴文龍; 王錦堂; | 書刊名 | 臺中區農業改良場研究彙報 |
卷 期 | 54 1997.03[民86.03] |
頁 次 | 頁33-45 |
分類號 | 435.331 |
關鍵詞 | 柑桔; 土壤肥力; 土類; 適栽; 營養診斷; Citrus; Soil fertility; Great soil group; Suitable cultivation; Nutrient diagnosis; |
語 文 | 中文(Chinese) |
中文摘要 | 為瞭解中部主要柑桔產區適栽情形,於 1991 ∼ 1995 年在臺中縣(市)設置 178 個調查點,除調查產量外,並進行柑桔果園土壤及葉片採樣,以分析各種元素濃度。 結 果以暗灰色崩積土柑桔產量 28,185 kg/ha 為最高,黃壤土柑桔產量 16,114 kg/ha 最低 。 土系間以灰黃色崩積土之 Tlt 土系柑桔產量 39,675 kg/ha 為最高,黃壤土之 Ylk 土 系產量 16,114 kg/ha 最低。 調查結果顯示肥料以氮素用量 > 700 kg N/ha 柑桔產量 18,519 kg/ha 最低, 用量 <300 kg N/ha 柑桔產量 22,617 kg N/ha 較 >700 kg N/ha 用量增產 18.1% ( 4, 098 kg/ha ),施用重氮肥料之柑桔果園有明顯減產。柑桔葉片隨氮肥用量增加而使葉氮濃度增加,超 過 3.3% 以上者柑桔產量平均 20,299 kg/ha, 葉氮濃度在 3.0 ∼ 3.2% 適宜值範圍內者 ,柑桔產量平均 22762 kg/ha,增產 10.8% ( 1,463 kg/ha )。 柑桔園土壤 pH 值平均 4.90,有機質含量平均 2.46%,有效性磷含量平均 800 ppm,交換性鉀含量平均 446 ppm, 交換性鈣含量平均 2276 ppm,交換性鎂含量平均 293 ppm。 柑桔葉鉀濃度平均 1.14%,低 於適宜值下限 1.40% 甚多,顯示柑桔葉鉀吸收受阻,產生葉鉀濃度不足。 調查結果中部地區有五土類 27 個土系適合栽培柑桔其面積共計 35,695 ha, 包括臺中縣 五土類 26 個土系面積 26,612 ha;臺中市四土類 8 個土系面積 2,368 ha;南投縣二土 類 5 個土系面積 4,170 ha;彰化縣二土類 3 個土系面積 2,545 ha。 |
英文摘要 | The objective of the study was to evaluate the soil condition and fert ilizer application suitable for citrus production. Samples of soil and leaf from 178 orchards were periodically collected and analysed. The result showed that orchards in the dark grey colluvial soils had the highest fruit yeild of 28,185 kg/ha, while orchards in the yellow earth soils had the lowest fruit yeild of 16114 kg/ha. In the soil series aspects, the Tlt soil sery in the grey yellow colluvial soils had the the higest fruit yield of 39,675 kg /ha, while the Ylk soil sery in the yelbw earth soils had the lowest fruit yeil d of 16,114 kg/ha. The investigated orchards fertilized with N element more than 700 kg/ha, had the lowest fruit yeild of 18,519 kg/ha, while orchards fertilized with N-element less than 300 kg/hg had the hgihest fruit yeild of 22, 617 kg/ha, 18.1% highger than that of the lowest yield. In other words, excessive application of N-fertilizer lowered the yield significantly. Generally, increasing N-fertilizer application increased N content of leaf. The N-content in leaf higher than 3.3%, had the mean yield of 20,299 kg/ha and was 10.8% lower than that of the N-content in leaf of 3.0-3.2%, the approiated range literatured. The mean pH, organic matter, available P, exchangeable K, Ca and Mg content of the investigated soils are 4.90, 2.46%, 800, 446, 2,276 and 293 ppm, respectively. The mean of K content in leaf is 1.14%, lower than the appropriate low limit of 1.40%, and showed K diffiency from K-uptake inhibition. We concluded that twenty-seven soil series within five great soil groups are suitable for citrus production by the study. the total area are 35,695 hectares, including 26612 hectares distributed in 26 soil series within 5 great soil groups in Taichung Prefecture, 2,368 hectares in 8 soil series within 4 great soil groups in Taichung city, 4,170 hectares in 5 soil series within 2 great soil groups in Nantou Prefecture, and 2.545 hectaresin 3 soil series within 2 great soil groups in Changhua Prefecture. |
本系統中英文摘要資訊取自各篇刊載內容。