Effects of Different Mulching Practices on Garlic (Allium sativum L.) Growth and Production

Garlic (Allium sativum L.) is a shallow-rooted crop mostly grown for cloves, which are used as a food flavoring condiment. Mulching helps to keep soil moisture by lowering energy loss through evaporation and preventing vapor transfer. A field study investigated how different mulches affect the garlic growth metrics. The experiment was conducted in the Chitwan District of Nepal from December to April 2022 under a randomized complete block design with three replications and five treatments (control, polythene mulch, straw mulch, banana leaf mulch, and sawdust mulch). The results reveal that the type of mulching materials employed substantially impacts on garlic growth and clove yield. Rice straw mulch exhibited the highest plant height (70.69cm) at 120 DAP followed by sawdust (64.44cm) and banana leaves (62.34cm). At 120 days after planting, leaf length was found to be statistically similar under rice straw (43.36) and plastic mulch (41.56 cm). Plastic mulch showed the highest results in number of leaves per plant(7.6), Stem diameter (1.58cm), Bulb weight (44.61gm),Bulb diameter(5.11cm), Root length(8.48cm) and Total yield (15.99t/ha). On the other hand, saw dust had a greater impact on bulb length (6.05cm). Notably, plastic mulch regularly outperformed other treatments in most criteria, with rice straw following closely. Based on these findings, plastic mulch appears to be the best option for garlic production.