Polish agriculture grapples with higher combine harvester costs and weed contamination risk

Harvesting combines can unintentionally transport weed seeds and plant pathogens between fields. Contamination occurs when seeds or infected plant material remain in the machine and are deposited on subsequent crops, potentially requiring additional herbicide applications or disease control measures. Studies in the United States and Canada have documented viable weed seeds in combine residues, highlighting the need for thorough cleaning to protect subsequent plantings.

At the same time, Polish farmers are facing sharply rising expenses for combine operation. Prices for new 400 kW combines have risen about 30 % since the pandemic and the war in Ukraine, while labor shortages increase hiring costs. Efficient field planning, grain handling logistics, and coordination among operators are now critical to ensure profitability, as even the most advanced machinery cannot offset high operating costs without proper organization.