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改變土壤環境對韭菜缺鐵黃化之防治效果試驗
Sutdies on Alleviation of Iron Chlorosis in Chinese Leek by Means of Changing Soil Environments
摘要
為探討利用滴灌方式及配合施用硫酸亞鐵或硫黃粉以改善石灰質鹼性土壤，防治韭菜缺鐵黃化，本試驗於民國77年7月至79年6月在吉安鄉本場試驗地進行。試驗結果顯示利用滴灌、施用硫黃粉、滴灌並配合施用硫酸亞鐵或硫黃粉、滴灌並配合施用硫酸亞鐵及堆肥等處理均可減輕韭菜黃化之徵狀，具有防治之效果。各處理區韭菜植株鐵之含量均明顯提高，分別比對照區（92.2ppm）增加7.8∼25.9mm。韭菜之產量則以每公頃施用1,500kg硫黃粉之處理為最高，採收10次合計之公頃產量共為57,810kg，比對照區（48,775kg）增產18.6%，其餘各處理之產量均不及對照區。韭菜植株粗纖維之含量，莖白部分各處理區均比對照區略低，而葉片部分則均略高於對照區。綜合上述試驗結果，以每公頃施用硫黃粉1,500kg之處理最值得採行。
並列摘要
Six treatments i.e., drip-watering (DW), DW and ferrous sulfate 200kg/ha, DW with ferrous sulfate 200kg/ha and compost 20,000kg/ha, DW and sulfur powder 1,500kg/ha, sulfur powder 1,500kg/ha, and control (CK) were included in the experiment. There sults indicated that application of 1,500kg/ha sulfur powder 3 weeks before planting had the best effect on total yield (57,810kg/ha) from 10 harvestings which showed higher than the check by 18.6%, and the chlorosis was alleviated.
延伸閱讀
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