Effect of Foliar Application of Banana Pseudostem Sap on Yield of Cowpea (Vigna unguiculata L. Walp.)

IF 0.3

International Letters of Natural Sciences Pub Date : 2020-07-01 DOI:10.18052/www.scipress.com/ilns.79.9

W. Fernando, B. Karunarathna

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引用次数: 4

Abstract

Improved soil fertility is a requirement for enhanced crop production. Combination of inorganic and organic fertilizers improve crop productivity while reduce environmental degradation. An experiment was carried out at Eastern University, Sri Lanka to study the effect of Foliar Application of Banana Pseudostem Sap on Yield of Cowpea (Vigna unguiculata L. Walp.) in sandy regosol. The experiment was laid out in Randomized Complete Block Design having five treatments viz; recommended inorganic fertilizer N, P, K as basal and N as topdressing (T1), N, P, 1⁄2 K as basal with recommended N as topdressing and foliar spray of 1% , 3%, 5% and 7% banana pseudostem sap solution (T2-T5) at 3rd, 5th, 7th and 9th week after planting. The results revealed that significant difference (P<0.05) were noted on number of pods per plant at 1st and 2nd picking. Higher number of pods per plant, maximum pod length and girth were in T2 while low in T1. Sun dried weights of pods and number of seeds per pod were significantly (P<0.05) varied at each picking. Further, cowpea yield at each picking were higher in T2 compared to tested treatments. The present study suggested that, among the tested treatments N, P, 1⁄2 K as basal with recommended N as topdressing and foliar spray of 1% Pseudostem sap solution at 3rd, 5th, 7th and 9th WAP would be the most suitable for cowpea production in sandy regosol.

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叶面施用香蕉假茎液对豇豆产量的影响

提高土壤肥力是提高作物产量的必要条件。无机和有机肥料的结合提高了作物生产力，同时减少了环境退化。在斯里兰卡东部大学研究了在沙质土壤中叶面施用香蕉假茎液对豇豆产量的影响。试验采用随机完全区组设计，共设5个处理:植后第3、5、7、9周叶面喷施1%、3%、5%、7%香蕉假茎液溶液(T2-T5)，以N、P、K为基肥，N为追肥(T1)， N、P、1 / 2 K为基肥，N为追肥(T1)。结果表明，第一次和第二次采摘时单株荚果数差异显著(P<0.05)。单株荚果数、最大荚果长和最大荚果周长在T2较高，在T1较低。籽粒晒干重和每粒种子数在各采期变化显著(P<0.05)。此外，与试验处理相比，T2中每次采摘的豇豆产量更高。本研究认为，以N、P、1 / 2 K为基肥，推荐N为追肥，在第3、5、7、9 WAP时叶面喷施1%假茎液的处理最适合沙质土壤中豇豆的生产。

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International Letters of Natural Sciences MULTIDISCIPLINARY SCIENCES-

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