土壤水分管理對蓮霧品質提昇效果之研究

Effect of Soil Moisture Management on the Quality of Waxapple

林永鴻(Yong-Hong Lin)

《高雄區農業改良場研究彙報》 17卷1期 (2006/06) Pp. 30-41

https://doi.org/10.6958/RBKDAIS.200606.0030

摘要

蓮霧（Syzygium samarngense Merr.et Perry）為台灣重要經濟栽培果樹，其品質（糖度、色澤、裂果等）受到氣候、栽培管理等因子影響很大，在栽培管理中又以營養及水分管理最為重要。本試驗將探討水分管理對於土壤性質、葉片養分濃度變化、及蓮霧品質之影響。試驗於屏東縣高樹鄉及南州鄉兩種不同土壤性質的蓮霧園進行水分管理，分為：1.開溝保水法，2.張力計監測法以及3.乾旱三種處理，另設農民慣行法為對照區。結果顯示，高樹試區以實施張力計監測法之土壤的要素含量及葉片要素含量提昇至最高，且糖度最高，裂果率在所有處理中為最低，較對照區低約11.7%，乾旱處理土壤中的要素含量及葉片要素含量較試驗前還低，且糖度最低，裂果率較對照區高3.4%，果皮顏色以張力計監測法較紅。南州試區以開溝保水法土壤中的要素含量及葉片中的要素含量提昇至最高，且糖度最高，裂果率較其他處理低，較對照區低19.7%；乾旱處理土壤中的要素含量及葉片要素含量較試驗前還低，且糖度最低，裂果率較對照區高3.3%，果皮顏色以開溝保水法較紅。

關鍵字

土壤水分 ； 蓮霧 ； 品質

並列摘要

Waxapple (Syzygium samarngense Merr.et Perry) was one of economically planting orchards in Taiwan. In spite of sugar degree, color, the percentage of fruit cracking was one of important index. The quality of waxapple was influenced by climate, field management. This researcher was conducted to evaluate the influence of soil moisture management on the increasing of fruit quality. It was proceeded in the Kaosu, Nantzu, Pingtung. The soil properties were different in the two areas. The three treatments were proceeded in the fruiting stage, (1) the soil was furrowed 20 cm and immersed in water 5 cm (FI), (2) the tensiometer monitoring, from 15 cbar to 25 cbar (TM), (3) drought (DR), and the treatment of farmer usage as check (FU). The results showed that the effect of TM on soil properties , the concentration of leaf elements and fruit color were all increased between different treatments, the fruit cracking percentage of TM was 11.7% lower than check and the effect of drought on soil properties, the concentration of leaf elements and fruit color were all decreased than the experiment before treatments, the fruit cracking percentage of TM was 11.7% lower than check in Kaosu orchard. The effect of TM on soil properties, the concentration of leaf elements and fruit color were all increased between different treatments, the fruit cracking percentage of TM was 19.7% lower than check and the effect of drought on soil properties, the concentration of leaf elements and fruit color were all decreased than the experiment before treatments, the fruit cracking percentage of TM was 3.3% lower than check in Nantzu orchard.

並列關鍵字

Soil moisture ； Waxapple ； Quality