Blueberry fields forever: How a town reinvented itself

Seedling breeding

Even during winter, the laboratory at the blueberry production, education and research base in Chentuan emanates warmth. Rows of small transparent bottles that house blueberry seedlings are neatly arranged there.

"Seedlings play a crucial role in the success of the blueberry market, so we need to prioritize seedling cultivation," Yao said.

The town has deepened its cooperation with more than 20 universities and research institutes, including Jilin Agricultural University, to develop core technologies for blueberry cultivation.

In 2022, eight new blueberry varieties were bred and recommended as the top varieties for future planting.

"In our town, the peak harvest season of blueberries is from June to July. Thanks to the new varieties, blueberries can reach the market as early as the end of March," Yao said, adding that some blueberries planted in the town are available even before the Spring Festival.

Compared to traditional varieties, the new ones are better suited to the local climate, he said.

"The new varieties produce larger and sweeter blueberries, and each plant can yield 10 percent more than traditional varieties," Yao said.

In a greenhouse in the town, Li Chunlei, who has devoted himself to blueberry cultivation for the past 18 years, was watering blueberry seedlings in mid-December. These seedlings are the new varieties that they are trying to cultivate.

"Breeding new varieties is a slow and meticulous process that requires patience. It typically takes seven to eight years to cultivate a new variety," said Li.

Li and his colleagues planted more than 200 new varieties of blueberry seedlings in the greenhouse last March. After observing their growth and comparing the results, they eliminated more than 40 seedlings.

Chentuan has also adopted technological advancements in planting blueberries.

At a blueberry industrial park, all 95 standard blueberry greenhouses are equipped with a smart internet of things platform.

Sensors in the greenhouses upload data, such as temperature, soil moisture, and humidity to the platform, allowing blueberry growers to monitor real-time soil and air temperatures.

The blueberry IoT information management and control system also provides quick access to information on agricultural diseases, pests and disasters in the park.

"Standardized cultivation has significantly improved the quantity, quality and fruit safety of blueberries," said Yao.

Industrial shift

Chentuan is located at the upper basin of Rizhao's biggest reservoir, which supplies water for both production and daily use in the city.

A decade ago, the stone mining and processing industry was a major contributor of revenue to the local government, with an annual output value of around 120 million yuan ($16.76 million).

However, the industry posed risks to safe drinking water and the physical health of residents.

Local statistics show that stone processing in Chentuan produced over 100,000 cubic meters of slurry and sawdust each year.

To address these issues, local government departments adopted various measures.

They assisted stone business units that wished to continue their operations in relocating to a stone industrial park and guided those who wanted to transition away from the business to explore new opportunities, such as growing blueberries.

In 2014, all stone extraction and processing facilities in Chentuan were shut down. Since then, the town's environmental quality has steadily improved, creating a positive atmosphere for blueberry cultivation.

"As early as in 2005, an agricultural professor from Dalian University planted some blueberries in a village of our town because the soil of the hills suits the growth of blueberries," said Yao.

Two years later, the blueberry saplings produced a good harvest and were sold out quickly.

"When local government departments shut down the stone business, they started to guide local farmers in expanding the growing area of blueberry as an option to enrich the local people," said Yao.

"I work at a blueberry production base from March to July harvesting open field blueberries, earning a decent income," said Wang Peiyun, a resident of Dongshidun village.

The blueberry industry has provided a large number of jobs for villagers in the town. During the annual harvest season alone, it creates jobs for over 10,000 farmers.

Thanks to the blueberry industry, the per capita bank deposits in the town, which now has a permanent population of 19,000, had increased from 18,000 yuan in 2012 to 80,000 yuan in 2022, said the township government.

"We will establish a complete industry chain, from seedling breeding to deep processing, and promote the integrated development of the agricultural and tourism sectors to contribute to rural vitalization," said Feng Pengzhan, head of the township government.