A rice farmer in Gyeonggi-do has successfully reduced fertilizer costs by more than 3 million won per year through soil testing. By analyzing soil components, the test allows farmers to replenish only the deficient nutrients, serving as a guiding “soil recipe” that specifies the optimal type, quantity, and timing of fertilizer application. According to research from the National Academy of Agricultural Science, using soil tests reduces fertilizer use by an average of 31% while maintaining both crop yield and quality. In response, the Gyeonggi-do Agricultural Technology Institute supports precision fertilizer application technology based on soil analysis and provides free services. Farmers can submit soil samples to the City District Agricultural Technology Center and receive a customized fertilizer recipe within approximately three weeks.
The recipe includes recommended amounts of nitrogen, phosphoric acid, potassium, lime for pH adjustment, compost, and other inputs. Last year alone, the Gyeonggi-do Agricultural Technology Institute analyzed over 52,000 soil samples from rice paddies in the city and issued free recipes. In the current context of rising energy prices, which have increased the burden of fertilizer costs, soil testing is seen as a valuable tool for reducing farm management expenses and promoting sustainable agriculture. By enabling farmers to apply only what is necessary, this approach helps lower costs, protect soil health, and support environmentally responsible farming practices.
