Vertical Farm

Controlled Environmental Agriculture (CEA) is a method of farming that optimizes growing conditions by closely regulating environmental factors within a controlled space, typically indoor or greenhouse settings.

By carefully managing environmental conditions and utilizing technology-driven solutions, CEA addresses the growing demand for nutritious, locally sourced food while minimizing the environmental impact of farming. CEA combines technology, science, and automation to provide an ideal environment for plant growth. This method is at the forefront of modern agriculture, offering a path toward to a more secure, efficient, and sustainable food future.

Controlled Environment Agriculture (CEA) excels in comparison to traditional in-field production by enabling year-round crop growth, reducing water usage, minimizing pesticide use, maximizing land efficiency, and offering higher yields. CEA's precise environmental control ensures consistent crop quality and reduces the impact of weather-related disruptions.

Additionally, shorter supply chains reduce transportation emissions, while minimized resource wastage promotes sustainability. These advantages collectively enhance food security, conserve resources, and provide a more resilient and environmentally friendly approach to agriculture, particularly in urban areas with limited land availability.

A vertical farm is an agricultural system where crops are cultivated in vertically stacked layers of shelves or through use of towers within a controlled indoor environment, such as a greenhouse or warehouse. This approach maximizes space utilization and relies on technologies like hydroponics or aeroponics, precise climate control, and artificial lighting to create ideal growing conditions.  They are particularly suited for urban areas with limited space and contribute to sustainable, local, and reliable food production.

Vertical farms face several challenges today, including high initial setup costs, substantial energy requirements for lighting and climate control, technical complexity, limited crop diversity,  market competition, and regulatory hurdles. Scaling up is an area where there has been mixed success in the industry, as it can often be costly and complex.

Additionally, the environmental impact of energy consumption and waste management has yet to be addressed. Ensuring economic viability, especially for smaller operations, remains a concern. Overcoming these challenges requires ongoing innovation, cost-effective solutions, and supportive policies to enable vertical farming to fulfill its potential as a sustainable and efficient method of food production.

The majority of vertical farms today are focused on the production of leafy green such as lettuce, salad mixes, green onions, herbs and edible flowers. These plants are preferred because of their fast growth rates and simple production cycle. Small bush crops like strawberries and cherry tomatoes also adapt well to vertical farms and specialty system for vine crops like peppers and cucumbers have been developed.

Currently most crops are selected for in field production leaving room for expansion in the area of cultivar selection for vertical and indoor production. 

Currently Dr. Kuwahara's research is sponsored by the CSU Agricultural Research Institute (ARI) and is focused on the influence of ultrafine bubbles on hydroponic production of leafy greens.

Future research will look into water reuse in hydroponic system utilizing various treatment methods to control plant pathogens, bio-films, and autotoxins.

The Grow Crew offers opportunities for students across campus to participate in hydroponic growing projects. Students can explore undergraduate research opportunities with faculty working on controlled environment agriculture.