Integration of Allelopathy for Sustainable Weed Management in Agriculture: A Review

Abstract

Inhibiting plant growth and development, weeds cause crop failure, causing a significant threat to agricultural output. Compared with any other pest, weeds reduce agricultural yields. Consequently, synthetic herbicides have become widely used for weed control. However, the widespread use of synthetic herbicides affects ecosystems and human health. The numerous adverse effects of synthetic herbicides have prompted scientists to seek less harmful alternatives. It is possible to significantly decrease the use of pesticides by implementing the method, i.e., allelopathy. In writing this review, we aimed to help readers better understand many allelopathic species that produce useful allelochemicals for both organic and conventional farming. The main goal of this research topic is SDG 2: Zero Hunger. The objectives of this SDG are to improve nutrition, achieve food security, eradicate hunger, and advance sustainable agriculture. The study also helps to understand the dynamics of terrestrial ecosystems and the relationships between plant species, which are crucial for sustainable land management and agricultural productivity. It is secondary to SDG 15 (Life on Land). Allelopathy is becoming increasingly significant in sustainable agriculture despite these obstacles, providing a way to cut chemical inputs while still controlling weeds effectively. We expect that more studies will be conducted into allelopathy as a weed management strategy for a complete, long-term, and ecologically acceptable weed control plan.