不同鉀肥處理對設施小果番茄生育及品質之影響

本研究目的在探討不同鉀肥處理對設施小果番茄生育及甜度之影響，試驗採用籃耕介質栽培，鉀肥處理分別為（A）對照組（清水）、（B）硫酸鉀、（C）氯化鉀、（D）商業產品1號及（E）商業產品2號。結果顯示，本研究不同鉀肥處理對番茄採收期各植株性狀表現上無顯著性差異。總果數及總產量中特級果所佔比以對照組表現最好，但各處理間果實性狀在果高、果徑、果肉厚及單果重等則無顯著性差異，可溶性固形物含量在採收初期及中期則各處理間無差異，採收末期以硫酸鉀處理（B）顯著優於對照處理（A）。採收結束各植體之元素含量，在不同處理間亦無顯著差異。綜合本研究在適當的栽培管理下，以葉面噴布不同鉀肥對設施番茄產量與品質之間無顯著差異，故對於結實期葉面噴施鉀肥之必要性需更進一步確定之。

關鍵字

番茄；設施栽培；鉀肥；果實品質

並列摘要

The purpose of this study was to explore the effects of different potassium fertilizers on the growth and fruit quality of cherry tomato in basket medium cultured under facility. The treatments were included (A) water (CK); (B) potassium sulfate; (C) potassium chloride; (D) commercial product No. 1 and (E) commercial product No. 2. The results showed that different potassium fertilizers treatments had no significant difference in the performance of tomato plant traits at the harvest stage. The control (CK) performed the best in the total fruit number and the proportion of the total yield, but there was no significant difference among the treatments in terms of fruit height, fruit diameter, pulp thickness, single fruit weight, and the content of total soluble solids. The total soluble solids was no difference between the treatments in the early and middle stages of harvesting, however, potassium sulfate treatment (B) at the end of harvesting was significantly better than the control treatment (A). At the end of harvesting, there was no significant difference in the element content of implants among different treatments In conclusion, under proper cultivation management, there was no significant difference between the yield and quality of tomato with different potassium fertilizers sprayed on leaves. So it is necessary to concern the advantages of spraying potassium in tomato leaf during fruiting stags.

並列關鍵字

tomato ； facility ； potassium ； fruit quality

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