北部地區仙草（Mesona procumbens Hemsl.）肥培管理技術研究

The Study of Fertilization Management for Mesona in Northern Taiwan

賴昭宏(Chao-Hung Lai)

《桃園區農業改良場研究彙報》 85期 (2019/06) Pp. 47-62

摘要

本研究旨在探討北部地區仙草施肥量與施肥分配率對仙草產量與品質之影響。以氮鉀各4級組合、磷肥5級及氮鉀不同施肥分配率處理進行試驗，以建立高凝膠強度的仙草肥培管理技術。試驗結果顯示，仙草施用氮100-150 kg ha^(-1)、磷酐50 kg ha^(-1)及氧化鉀90-180 kg ha^(-1)為較佳之三要素施肥組合。以相同氮鉀肥施用量，並將60%鉀肥分配至中後期施用，可顯著提高仙草凝膠強度，但總體產量無明顯影響。凝膠強度分析結果以處理1（氮肥1追：2追：3追=60%：30%：10%、鉀肥1追：2追：3追=10%：30%：60%）101.4 g cm^(-2)最高，處理2（氮肥1追：2追：3追=10%：30%：60%、鉀肥1追：2追：3追=60%：30%：10%）32.7 g cm^(-2)最低，處理間達顯著差異。

關鍵字

凝膠強度 ； 推薦施肥量

並列摘要

The purpose of this study was to investigate the effects of fertilization and fertilization rate on the yield and quality of Mesona in the field of northern region Taiwan. The experiment was conducted with a combination of nitrogen and potassium in four rates respectively, a phosphorus fertilizer five rates and a different distribution rate of nitrogen and potassium. The results showed that the application of N 100-150 kg ha^(-1), 50 kg ha^(-1) of P_2O_5 and 90-180 kg ha^(-1) of K_2O was the best fertilization combination. With the same amount of nitrogen and potassium fertilizer application rates, it was found that the application of 60% potassium fertilizer to the middle and late stage significantly increased the gel strength. Gel strength analysis results showed that the first treatment (nitrogen 1^(st) topdress : 2^(nd) topdress : 3^(rd) topdress = 60% : 30% : 10%, potassium 1^(st) topdress : 2^(nd) topdress : 3^(rd) topdress = 10% : 30% : 60%) was the largest (101.4 g cm^(-2)), the second treatment (nitrogen 1^(st) topdress : 2^(nd) topdress : 3^(rd) topdress = 10% : 30% : 60%, potassium 1^(st) topdress : 2^(nd) topdress : 3^(rd) topdress = 60% : 30% : 10%) was the smallest (32.7 g cm^(-2)), and the difference between both treatments was significant.

並列關鍵字

gel strength ； recommended amount of fertilizer