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題名 | 施用磷肥及土壤磷含量對椪柑果實品質與產量之影響=Yield and Quality of Ponken as Affected by Levels of Soil Phosphorus and Rates of Phosphate Fertilizer Application |
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作者 | 王錦堂; 陳鴻堂; 賴惠珍; Wang, Chin-tang; Chen, Hong-tong; Lay, Fuei-jen; |
期刊 | 臺中區農業改良場研究彙報 |
出版日期 | 19960900 |
卷期 | 52 1996.09[民85.09] |
頁次 | 頁21-32 |
分類號 | 435.331 |
語文 | chi |
關鍵詞 | 磷肥; 椪柑; 果實品質; Phosphate fertilizer; Ponken; Latosol; |
中文摘要 | 為探討強酸性紅壤果園有效性磷含量及不同施磷量對柑桔果實品質及 產量之影響,於台中縣新社鄉紅壤進行田間試驗。採用複因子設計,先調查選取 土壤含磷量4個等級(P低於200、200-400、400-600及高於600ppm),並分別 施以磷肥量3種(P2O5:0、300、600g/株)組合成12處理。果樹為14年生單 株區,3重複,計36株,行株距5×4m。1991年起連續4年田間試驗結果顯示, 椪柑平均產量在土壤磷含量低於200ppm時,以施磷肥P2O5 600g/株之80.9kg/ 株為最高。在土壤磷含量200∼400ppm區,亦以施磷肥P2O5 600g/株之87.2kg/ 株最高。在土壤磷含量400∼600ppm區,以不施磷之79.4kg/株較高。在土壤磷 含量高於600ppm區,以不施磷株之86.0kg/株及配合施P2O5 600g/株之83.8kg/ 株為較高。上述五種處理區椪柑產量均顯著高於土壤磷含量低於200ppm,配合 不施磷區之60.6kg/株。柑桔果汁糖度在處理間以土壤磷含量200∼400ppm區配 合施磷肥P2O5 600g/株之10.5% Brix為較高,土壤磷含量高於600ppm之施磷肥 三處理區為9.8∼9.7% Brix均較低。據試驗顯示土壤磷213ppm可以生產最高糖 度之椪柑,每株施用磷肥P2O5 327g則可以生產最低酸度之椪柑。本研究結果推 薦紅壤磷含量在400ppm以上時可以不施磷肥。 |
英文摘要 | Field experiments were carried out during 1991 through 1994 to investigate the effects of soil phosphorus and phosphate fertilizer on yield and quality of ponken fruits. Orchards of 14 years old poken trees were divided into four classes according to levels of soil available phosphorus (ie<200, 200-400, 400-600, and>600ppm). Three rates of phosphate fertilizer (0, 300, and 600g/plant) were applied to three replications of the ponken trees. Results from four years experiments indicated that phosphate fertilizer is not necessary to apply to the available phosphorus concentration in soil with higher than 400 ppm. When phosphorus contents in soils was less than 400 ppm, the phosphate fertilizer have to apply to reach a better fruit field and quality of citrus grown on the latosol. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。