The decline in curly chili production can be caused by several things, such as during the rainy season, cultivation is an obstacle for farmers in Wonogiri Regency and still requires various agricultural technology innovations to increase chili productivity. This study aims to examine several effects of treatments on the growth and yield of curly chili plants by providing screens, mulching, and silica fertilizer. The research was conducted in agricultural land of Gemawang Village, Ngadirojo District, Wonogiri Regency, Central Java; Integrated Laboratory of Sub-Chemistry; Plant Physiology and Biotechnology Laboratory, UNS. Soil analysis was conducted at the Physics and Soil Conservation Laboratory, Faculty of Agriculture, UNS in February - May 2024. The method used was a single plot of six treatments with each treatment without replication, namely screen house without UV plastic, screen house with UV plastic, mulch with circular holes (control), mulch with closed holes, provision of silica fertilizer with open hole mulch, provision of silica fertilizer with closed hole mulch. Observation variables were temperature, air humidity, light intensity, plant height, number of leaves, leaf area, chlorophyll content, stomata density, fruit diameter, fruit length, number of fruits per plot, number of fruits per plant, fresh fruit weight. Data analysis used was the T test with a significance level of 95% and correlation test. The results showed that the provision of screen + UV plastic increased growth that correlated with the yield of curly chili plants compared to other treatments. The provision of screen and UV plastic also provided a higher average number of leaves than plants that were not given screen covers and UV plastic. The fresh weight of providing screen covers and providing UV plastic was greater than the treatment that was not given a screen.