Farmers in Chiang Rai have identified potatoes as a more lucrative crop compared to other regional options, driven by high demand from the food industry for snack production.
PepsiCo, a major player in the snack industry, supports over 5,800 farmers across Thailand, facilitating potato cultivation on over 6,080 hectares in provinces such as Chiang Mai, Chiang Rai, and others.
Potatoes thrive in cooler climates, with ideal temperatures between 15 and 18 degrees Celsius. When temperatures exceed 21 degrees, stem growth accelerates while tuber yields decline. The best conditions are found at altitudes of at least 800 meters, where cooler temperatures support optimal tuber development.
Water management is crucial for potato farming. Initially, minimal water helps germination, but excess moisture can lead to rot. As the plants grow, water demand increases, peaking when the soil is fully covered. Inconsistent watering during tuber formation can cause abnormalities. Traditional furrow irrigation often results in poor skin quality and an increased risk of rot. To preserve tuber health, watering ceases two weeks before harvest.
Recognizing the importance of water efficiency, PepsiCo collaborates with local partners to train Thai farmers in climate adaptation. This training covers soil improvement, pest management, and efficient irrigation techniques such as drip systems, which ensure consistent water delivery while reducing costs.
PepsiCo has established 19 model farms to demonstrate sustainable potato farming techniques. These farms operate under contract farming agreements, providing farmers with guaranteed purchase prices.
Mr. Anuwat Phrommi, a potato farmer in Chiang Rai, transitioned from furrow to drip irrigation with PepsiCo's support. This shift increased his yields to 30 tons per hectare, reduced water use by 40%, and cut labor costs by 23%.
To maintain soil health after the rainy season, Anuwat buries crop residues instead of burning them. His harvest begins in early February, with premium potatoes sold to PepsiCo, while lower-grade produce is supplied to local markets.
Source: CTN News