頁籤選單縮合
| 題 名 | 葉面噴施養液對椪柑葉片性狀及果實品質之影響=Influence of Foliar Application on Leaf Characteristic and Fruit Quality of Citrus (Citrus poonensis Hort.) |
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| 作 者 | 曾宥綋; 郭雅紋; 陳鴻堂; | 書刊名 | 臺中區農業改良場研究彙報 |
| 卷 期 | 135 2017.06[民106.06] |
| 頁 次 | 頁59-68 |
| 分類號 | 435.33 |
| 關鍵詞 | 椪柑; 葉面施肥; 果實品質; Citrus; Foliar fertilization; Fruit quality; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 以4種養液葉面噴施於椪柑,分別為(1) 10 mM硝酸鉀+15 mM硫酸鈣+10 mM磷酸一鉀、(2) 15 mM硫酸鈣+60 mM磷酸一鉀、(3) 15 mM硫酸鈣及(4) 60 mM磷酸一鉀,並設對照組噴施自來水,探討其對椪柑果實品質及風災抗性之影響。豐原試驗區葉片氮、磷及鉀含量落於適宜養分值內,且葉面噴施15 mM硫酸鈣+60 mM磷酸一鉀或60 mM磷酸一鉀可增加葉片磷含量,噴施15 mM硫酸鈣或60 mM磷酸一鉀可顯著提升葉片鈣含量。果實糖酸比以施用15 mM硫酸鈣或60 mM磷酸一鉀有顯著提升,且葉面噴施4種養液皆可降低蘇迪勒颱風後之椪柑落果率。東勢試驗區葉片氮含量低於養分適宜值,噴施60 mM磷酸一鉀可顯著提升葉片磷與鉀含量,然會降低椪柑果長、果肉重、酸度及榨汁率,但糖酸比顯著提升,另葉面噴施15 mM硫酸鈣與60 mM磷酸一鉀亦降低果實榨汁率,此兩處理之葉片氮鉀比皆降至1.3,顯示植體低氮高鉀會導致椪柑果實榨汁率下降。試驗結果顯示,椪柑植株氮含量充足搭配葉面噴施磷酸一鉀,可維持果實品質並提高其糖酸比,且葉面施肥管理具有降低風災損害之應用潛力。 |
| 英文摘要 | The citrus cultivar 'Ponkan' was subjected to foliar application of four nutrient solutions as follows (1) 10 mM KNO3+15 mM CaSO_4+ 10 mM KH_2PO_4, (2) 15 mM CaSO_4+ 60 mM KH_2PO_4, (3) 15 mM CaSO_4 and (4) 60 mM KH_2PO_4, in order to investigate the influence on fruit quality and wind resistance. The control experiment was foliar application with tap water. In the experimental orchard in the Fengyuan District, the concentration of nitrogen, phosphorous and potassium in the citrus leaf among these treatments were all in the suitable nutrient levels, and foliar application of 15 mM CaSO_4+ 60 mM KH_2PO_4 or 60 mM KH_2PO_4 could increase phosphorous concentration in the leaf; foliar application of 15 mM CaSO_4 or 60 mM KH_2PO_4 can increase calcium concentration in the leaf as well as with increasing fruit TSS/acid ratio. Foliar application of the four nutrient solutions can decrease fruit dropping rate after the typhoon Soudelor in the experimental orchard in the Fengyuan District. In the experimental orchard in the Dongshi District, the citrus were nitrogen deficiency and foliar application of 60 mM KH_2PO_4 can significantly increase phosphorous and potassium concentration in the leaf resulting in decreasing the fruit length, pulp weight, acidity and juice content, but increasing the TSS/acid ratio. Decreasing juice content is also found in foliar spray of 15 mM CaSO_4+ 60 mM KH_2PO_4 followed by analysis of the leaf nutrition in the two treatments showed the N/K ratio in citrus leaf lower than 1.3 might cause the unfavorable effect. Experimental results showed foliar application of 60 mM KH_2PO_4 under optimal nitrogen content in the leaf could maintain citrus fruit characteristics and increase fruit TSS/acidity. Besides, foliar fertilization could be a potential approach for decreasing typhoon-caused damages in fruit trees. |
本系統中英文摘要資訊取自各篇刊載內容。