Growth performance and yield of shallot result from different Trichoderma sp. Formulation and applications

Abstract

The production of shallots has been decreasing, one of the factors causing it is soil degradation that caused by the continuously use of chemicals. Thus damaging the soil and killing natural enemies. Soil improvement can be done by adding organic material, minerals, and optimizing the function of biological agents. Trichoderma sp is one of the biological agents that has the ability to degrade soil. This study aimed to determine the effect of Trichoderma form and different application methods on the growth and yield of shallots. The location of the research was in Maku village, Sigi district, Central Sulawesi, from November 2020 to January 2021. The research method used a separate plot design with four replications, where the main plot was the form of Trichoderma sp. (T), which consists of three levels, namely, T1 = liquid (60 ml/bed) and T2 = solid (12 g/bed). The size of the bed is 3 m x 1 m while the sub-plot was the application (C), which consists of three levels, namely C0 = without giving; C1 = bulb straight to the ground; C2 = mix with manure. The results showed that the treatment of Trichoderma sp has a significant effect on plant height and number of leaves, but was not significantly different in way of application. While the interaction of the two treatments have a significant effect on the performance parameters. However, in the yield component, the treatment form and way of application did not show a significant difference. Overall, the best treatment combination was Trichoderma sp in solid form mixed with manure.