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Crop Research

Evaluation of shrimp waste compost under different methods and its impact on soil properties


DOI: 10.31830/2454-1761.2026.CR-1118    | Article Id: CR-1118 | Page : 321-326
Citation :- Evaluation of shrimp waste compost under different methods and its impact on soil properties. Crop Res. 61: 321-326
N. N. L. VUONG, V. K. NGUYEN, T. M. VU, T. D. TRAN, T. T. H. HOANG AND H. P. NGUYEN htthoa@hueuni.edu.vn
Address : University of Agriculture and Forestry, Hue University, Hue city, Vietnam
Submitted Date : 10-05-2026
Accepted Date : 3-06-2026
Online Published:

Abstract

 Large quantities of agricultural and aquaculture wastes, particularly shrimp byproducts, are poorly managed, leading to environmental pollution and loss of valuable nutrients. Although composting shrimp waste into organic fertiliser offers a sustainable solution, inconsistencies in compost quality and limited research on post-composting treatment hinder its effective utilisation, especially in regions like Hue city. Thus, the purpose of this study was conducted in Spring season of 2026 at Hue city, Vietnam to find the optimal combination for the best quality of organic fertiliser from shrimp wastes and to assess the impact of various rates of this fertiliser on lettuce soil characteristics. Three treatments with various materials and composting ratios in four replications, followed by another experiment on four rates of the best selected organic fertiliser from shrimp wastes in three replications, were conducted in a RCBD. The study's findings demonstrated that the quality of organic fertiliser from shrimp wastes (OFS) was influenced by various materials and composting ratios. The highest quality of OFS (pH 6.38, OM 22.6%, N 2.05%, P2O5 0.84%; K2O 1.17%; chitosan 3.94%) was produced by composting the shrimp wastes along with molasses, chitosan powder, lime and EM preparation. At a rate of 3% of OFS applications on lettuce crops had the best soil chemical characteristics (pHKCl 5.78, OM 2.23%, N 0.088%, P2O5 0.059%, K2O 0.40% and CEC 6.85 cmolc/kg). In order to improve soil, boost crop production, and lessen environmental pollution, more extensive research is required on this fertiliser.

Keywords

Composting materials organic fertiliser quality shrimp waste

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