三要素肥料施用量對青蔥生長及產量之效應

Effects of NPK Fertilizer Rates on the Growth and Yield of Green Onion

許苑培(Yun-Pei Shun)

《桃園區農業改良場研究報告》 26期 (1996/09) Pp. 25-30

https://doi.org/10.29567/ZHWHGX.199609.0001

摘要

本研究為探討氮、磷、鉀肥七種組合施用量對青蔥植株生長及產量之影響，於82年秋作及83年春作期間辦理本試驗。就秋作青蔥而言，株高、缺株率及單欉重等，肥料處理間呈顯著差異，產量以N-P2O5-K2O=200-150-200 kg/ha處理較對照區顯著增產9%。春作而言，株高、葉鞘軟白長度、葉鞘莖徑及單欉重等，處理間差異亦顯著，產量以200-150-200、200-100-100及300-100-200 kg/ha三處理，分別較對照處理顯著增產19、18及15%。在秋作土壤要素含量分析結果顯示，經施石灰石粉後土壤pH值增加0.3～0.7單位；有機質含量在秋作100-100-200及200-150-200 kg/ha兩處理，較定植前分別增加0.32及0.17%，在春作所有處理均增加0.29～0.86%；有效磷含量在秋作除200-50-200及200-150-200 kg/ha兩處理無變化外，其餘處理則增加9～47 kg/ha，春作卻增加67～126 kg/ha；有效鉀含量在秋作，除200-100-100 kg/ha處理外，其餘則減少22～50 kg/ha，在春作亦增加25～133 kg/ha；有效鈣含量，秋作或春作均有增加。有效鎂含量，在秋作，除200-100-200及300-100-200 kg/ha試區增加8～17 kg/ha外，其餘則減少8～41 kg/ha，在春作，除100-100-200 kg/ha處理減少2 kg/ha外，其餘均增加40～90 kg/ha。

關鍵字

青蔥 ； 肥料施用量 ； 產量

並列摘要

The objectives of this study were aimed to determine the effect of seven rates of N P and K fertilizers on the growth and yield of green onion. The results indicated that the plant height, missing hill rates and plant weight per hill were significantly different among treatments for fall green onion, and significant differences in plant height, lenght of white sheath, sheath diameter and plant weight per hill among treatments for spring green onion. The yield was significantly increased by 9% in N-P2O5-K2O=200-150-200 kg/ha treatment for fall green onion, and significantly increased by 19, 18 or 15% in 200-150-200, 200-100-100 and 300-100-200 kg/ha for spring green onion, respectively. The soil pH values in the treatment with slaked lime increased by 0.3-0.7 unit on fall crops. The organic content in the soil increased 0.32 and 0.17% in 100-100-200 and 200-150-200 kg/ha, respectively. treatment for fall crops. and also increased 0.29-0.86% in all treatments for spring crops. Available phosrphorus in the soil at 200-50-200 and 200-150-200 kg/ha increased 9-47 kg/ha in fall crops, and 67-122 kg/ha on spring crops. The available potassium in the soil descreased 22-50 kg/ha in the most of treatments, except application with 200-100-100 kg/ha in fall crops, and increased 25-133 kg/ha in treatments in spring crops. Available calcium contained in the soil increased after harvest for both crops. The content of available magnesium in fall crops increased 8-17 kg/ha in 200-100-200 and 300-100-200 kg/ha. while in other treatments decreased 8-41 kg/ha. In spring crop, except 100-100-200 kg/ha plot decreased of 2 kg/ha, while the others increased 40-90 kg/ha.

並列關鍵字

Green onion ； Fertilizer rate ； Yield