施肥对黄秋葵生长势、抗病性和产量的影响

为研究不同施肥方式对黄秋葵生长及产量的影响,以石秋葵1号和红玉为试验材料,以基肥为对照,选用叶面肥(磷酸二氢钾)和N、P、K质量比例为20∶20∶20的大量元素水溶肥料进行肥效对比试验。调查结果发现:施肥对石秋葵1号和红玉的生长势、抗病性和产量具有较大的影响;与对照相比,叶面喷施0.2%的磷酸二氢钾,667 m2施5 kg大量元素水溶肥料,更利于黄秋葵的生长,而磷酸二氢钾较大量元素水溶肥料更利于提高黄秋葵产量。

Effects of Different Fertilization on Growth Vigor, Disease Resistance and Yield of Okra

Abstract: In order to study the influence of different fertilization methods on the growth and yield of okra, comparison test was car ried out with foliar fertilizer KH2PO4 and water-soluble fertilizer whose proportion of the N, P, K was 20:20:20. The base fertilizer was used as control (CK) and ''Shiqiukui No.1'' and ''Hongyu'' were takenas the experimental materials. According to the survey results, fertilization had a great impact on the growth vigor, disease resistance and yield of ''Shiqiukui No.1'' and ''Hongyu''. Compared with CK, spraying 0.2% KH2PO4 and water soluble fertilizer 5 kg per 667 m2 were more suitable for the growth of okra. Furthermore, the foliar application of KH2PO4 was more effective than the application of water-soluble fertilizer to increase the yield of okra.