Surabaya as the second-largest city in Indonesia, faces serious challenges in waste management with daily waste generation reaching 1,800.05 tons in 2023, exceeding the capacity of Benowo landfill of 1,400 tons per day. Responding to this excess of 300 tons of daily waste, the Environmental Agency (DLH) of Surabaya City initiated the Zero Waste Village program. This program aims to increase public awareness about environmental cleanliness and waste management, implemented through collaboration between DLH and students from UPN Veteran East Java. The methods used include waste banks, composters, takakura, and processing into ecoenzymes. The program stages include sampling determination, initial waste weighing, intensive socialization, and final weighing. The results are encouraging, with a significant reduction in waste generation to an average of 0.19 kg per day per person after socialization. This success demonstrates the program's effectiveness in changing community behavior and reducing waste volume, providing hope for more sustainable waste management in Surabaya and reducing the excessive burden on the Benowo landfill.

The demand for sweet corn continues to increase in line with the rapid development of the food industry. Therefore, every company must be able to develop a strategic business plan to achieve the company's goals, whether short-term, medium-term, or long-term. One Day Promotion is one of the promotional activities with a gift given for every purchase of MADU-59 F1 sweet corn seeds, which is held at the Agricultural Store. This activity aims to know, implement, and identify the effectiveness of One Day Promotion (ODP) to increase sales. This activity was conducted in Karangploso, Malang, East Java, using two methods: collecting primary data through interviews, observations, recordings, and documentation, as well as collecting secondary data through literature references such as journals, books, and the internet. The One Day Promotion activity was conducted at three agricultural stores in Karangploso, Malang, East Java. This activity is considered effective in increasing brand awareness and serving as an educational medium for farmers to know the advantages of MADU-59 F1 sweet corn seeds. Additionally, the One Day Promotion activity aims to help achieve the company's goal of increasing product sales volume. With the One Day Promotion strategy, it will attract consumer interest and provide satisfaction to consumers, thus accelerating and expanding the market for MADU-59 F1 sweet corn seeds.