This study aims to determine the effect of the interaction between the application of Trichoderma solid formula biopesticide applied to the soil and through canopy spraying on the growth and health of vegetative phase cayenne pepper (Capsicum frutescens) plants. This study was conducted from September to December 2024 in Pacet, Pasinan Hamlet, Cepokolimo Village, at an altitude of 450 meters above sea level. This field study was designed as a factorial Randomized Block Design. The first factor was the application of solid biofertilizer (soil treatment), which consisted of three levels: no biofertilizer application but using complete chemical fertilizer; soil treatment at planting or starting from sowing; and soil treatment one month after planting. The second factor was the application of liquid Trichoderma biofertilizer. The observation variables were length increase (cm), leaf number increase, average time of first flowering (days), branch increase, and plant health. The interaction effect of biopesticide application through soil treatment had a significant effect on plant health with a disease symptom intensity of 9.38% compared to the control of 16.67%. The interaction effect on plant growth was not significant.
Azarine Sade Devitasari, S. Sutarman· Deméter· 0 citations
The objective of this study was to determine the effect of Trichoderma esperellum biological agent applied through soil treatment and foliar spray, as well as the possibility of their interaction on the vegetative growth of sweet potato plants. The density of fungal spores in the propagule suspension ready to be sprayed onto the canopy surface was the same as that contained in the solid form for fertilization application, namely 105 CFU.mL-1. The experiment was arranged factorially in a Randomized Block Design (RBD) with four replicates. The variables observed were plant height, number of leaves, stem diameter, and harvest weight per 1.5 m2 plot area. The data were analyzed using Analysis of Variance followed by a 5% BNJ test. The results showed that the application of Trichoderma biofertilizer as soil fertilization had a significant effect on plant growth and harvest weight, while application through canopy spraying had no significant effect. The interaction effect was only significant for plant height. Fertilizer application at planting time yielded the highest results at the end of the observation period, namely 34.0 cm, 114 shoots, 10.05 cm, and 2,686.6 g for plant height, number of leaves, stem diameter, and harvest weight, respectively.
Izzat Khadafi Haikal, S. Sutarman· Deméter· 0 citations
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