Currently, during the critical spring plowing season in northern China, new tractors equipped with the "Beidou Navigation + Soil Fertility Monitoring" dual system are carrying out precision fertilization at a corn planting base in Zhaodong, Suihua City, Heilongjiang Province. This innovative system collects real-time soil data and automatically adjusts fertilizer application rates, reducing chemical fertilizer usage by 15 kilograms per mu (approximately 150 kg) and improving fertilization accuracy by 30% compared to traditional methods. This has injected new momentum into increasing grain production and promoting green agricultural development.
Previously, farmers relied heavily on experience when applying fertilizer, leading to problems such as "over-fertilization leads to waste, while under-fertilization leads to reduced yields." This not only increased planting costs but also easily caused soil compaction. To address this challenge, an agricultural machinery research and development team spent two years integrating Beidou navigation and positioning technology and soil fertility sensors into tractor operation systems. During operation, sensors on the tractor chassis monitor soil nitrogen, phosphorus, and potassium levels in real time and transmit the data to the smart terminal in the cockpit. The Beidou system accurately records the operation trajectory and, based on the differences in fertility among the plots, automatically controls the fertilizer delivery rate, achieving the goal of "adding where needed, and providing as much as needed."
In Wuliming Town, Zhaodong City, farmer Zhang Xuefeng first implemented this system on his 200-mu corn field. "I used to apply fertilizer by feel. In some plots, too much fertilizer burned the seedlings, while in others, too little fertilizer led to poor growth. Now, with a single pass, the tractor can both locate and measure fertility, saving me over 20 yuan per mu of fertilizer costs, and I don't have to manually adjust the machine." Zhang Xuefeng said that based on the local corn planting area, town-wide implementation could reduce fertilizer use by over 500 tons annually.
According to the head of the agricultural machinery promotion department, the system has been implemented in major grain-producing areas in Northeast China, including Heilongjiang, Jilin, and Liaoning, covering over 3 million mu of cultivated land. In the next step, the team will also optimize the system functions and add a pest and disease identification module, so that the tractor has the dual capabilities of fertilization and pest and disease warning, helping farmers achieve "one-stop" field management.
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