Organic materials to enhance climate change resilience on shallot production: a review

Shallot is one of the most important vegetables for Indonesian people due to its circumstances as the main ingredient in many Indonesian foods. The use of organic materials as nutrient sources is growing, concerning the increasing consumer demands on organic products and environmental issues such as climate change. Using organic materials helps plants to mitigate and adapt the environmental changes. This review described the potential organic sources as liquid organic fertilizer to support shallot growth. The method of this review was a systematic literature review that was grouped by themes. Liquid organic fertilizer is one of the most effective ways to improve plant production. The results showed that the effect of liquid organic fertilizer depends on the raw materials that were used. Several organic materials that potentially enhance shallot production and quality would be discussed, including rabbit manure, black soldier fly manure ( kasgot ) and white lead tree leaves. Those organic materials contain a high concentration of phosphorus, potassium and nitrogen that might accelerate shallot growth. The potential effect of those organic materials on increasing shallot production would be described briefly.