Effect of sole and combined application of cocoa pod husk ash and cocoa pod husk powder on growth and yield of raddish (raphanus sativus)

Effect of sole and combined application of cocoa pod husk ash and cocoa pod husk powder on growth and yield of raddish (raphanus sativus)

Aboyeji Christoher Muyiwa;Olabode Olamilekan Adebayo and
trends in horticulture 2018 Vol. 1
165
aboyeji2018effecttrends

Abstract

This study was carried out at the Teaching and Research farm Landmark University, Omu-Aran. Treatments consisted of 3 levels of cocoa pod husk ash (0, 2 and 4 tonnes CPHA ha -1 ), 3 levels of cocoa pod husk powder (0, 2 and 4 tonnes CPHP ha -1 ), NPK and the control. The experiment was laid out in a Randomized Complete Block Design (RCBD) replicated four times. The following parameters were taken plant height, number of leaves (at 2, 3, and 4 weeks after sowing), total plant weight, root weight, leaf weight, roots girth and roots length. Data collected were subjected to Analysis of Variance (ANOVA) Using S.A.S, 2000. Treatment means were compared using Duncan Multiple Range Test (DMRT) at 0.05 level of probability. Results showed that chemical analysis of cocoa pod ash and powder contained plant nutrients as N, P, K, Ca, Mg and some other micronutrients in varying proportions. Application of CPHA 4 CPHP 2 gave higher values for all the vegetative parameters. The implication of this study is that high level of cocoa pod husk powder in combination with high level of cocoa pod husk ash is detrimental to radish cultivation. In the same vein, the nutrition of radish was incomplete when NPK fertilizer was applied. It can therefore be recommended that the use of combined application of cocoa pod ash and cocoa pod powder at CPHA4 + CPHP2 was sufficient for the cultivation of radish (Raphanus sativus) in the study area as it compete favourably with application of NPK fertilizer.

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