Plant later. Sew beans seeds once the weather has warmed to a temperature preferred by beans (between 60 and 70 degrees during the day and above 50 degrees at night) to promote maximum germination and early growth.
Provide more space. Commercial farmers have increased their yield by increasing bean row sizes. Space rows at least 2 feet apart to increase root growth and air flow while decreasing disease and pests.
Weed frequently. Beans, especially seedlings, are particularly susceptible to weeds. Weed by hand between plants and by hoe between rows as needed.
Water less. Beans prefer moist soil to soaked soil. Water only as much as needed to keep the ground moist to prevent root rot and overwatering.
Apply fertilizer. While beans do not require much feeding, applying fertilizer before germination will increase early growth.
Protect plants from the elements. Cover plants with portable greenhouses during cold spells, which can kill plants. If the temperature exceeds 85 degrees, provide shade to cool the plant, as high temperatures can cause bloom drop.
Harvest often. Hand-harvest beans as soon as they ripen instead of in batches. This encourages the plant to produce more fruit.