Influence of enriched organic manure, biostimulants and bio-mulches on organic okra (Abelmoschus esculentus)

Subha Laxmi Mishra; Ranjit Chatterjee; Amrit Tamang; Koushik Saha

doi:10.56093/ijas.v90i6.104779

Authors

Subha Laxmi Mishra Uttar Banga Krishi Viswavidyalaya, Cooch Behar, West Bengal 736 165, India
Ranjit Chatterjee Uttar Banga Krishi Viswavidyalaya, Cooch Behar, West Bengal 736 165, India
Amrit Tamang Uttar Banga Krishi Viswavidyalaya, Cooch Behar, West Bengal 736 165, India
Koushik Saha Uttar Banga Krishi Viswavidyalaya, Cooch Behar, West Bengal 736 165, India

https://doi.org/10.56093/ijas.v90i6.104779

Keywords:

Bio-mulches, Enriched farmyard manure, Organic okra, Vermicompost

Abstract

Field experiments were conducted to identify the best source of nutrients and bio-mulch for fruit yield, quality and soil properties of organic okra (Abelmoschus esculentus) at U B K V, Pundibari, West Bengal, India during February- May 2017-18. The experiment was laid out in Factorial RBD comprising of two factors, viz. organic nutrient sources (N) and bio-mulches (M) having four levels each. The findings of the experiment suggested that basal application of Azophos biofertilizer enriched vermicompost (5 t/ha) along with foliar spray of seaweed extract (2 ml/l) at 30, 40 and 50 days of sowing (N₄) emerged as best treatment in terms of highest number of fruits (19.94/plant) and maximum yield (14.39 t/ha). Among the different bio-mulches, the vegetable legume plant residue mulch (M₄) recorded highest number of fruits (20.79/plant), total fruit yield (14.79 t/ha), maximum ascorbic acid content (18.47 mg/100 g) and increased total chlorophyll content (46.99 mg/100 g). The interaction of N₄M₄ recorded highest number of fruit (22.88/ plant), fruit yield (348.08 gm/plant), total yield (16.68 t/ha) and the maximum total fruit chlorophyll content (51.60 mg/100 g). All the interaction of organic nutrient sources and bio-mulches showed increase in available N, P, K and organic carbon content in post harvest soil over the initial status. The study concluded that adoption of biofertilizer enriched vermicompost in combination with 3 times foliar spray of seaweed extract in standing crop with legume as mulch have significant positive impact on fruit yield, quality and soil properties of organic okra.

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