Farmers in the UK have kicked off their annual harvest weeks earlier than usual, a stark consequence of climate change's growing impact on British agriculture. Colin Chappell, a Lincolnshire farmer, notes that this year's harvest has begun three weeks sooner than it would have 20 years ago - a trend observed across various regions.
The typical harvest sequence starts with winter barley, followed by oilseed rape (OSR) and then wheat. But beans, traditionally the last crop to be cut, are now maturing in early July rather than September, thanks to an unusually warm spring and summer. While an earlier harvest can bring benefits like longer daylight hours and reduced drying costs, it also raises concerns about yields being affected by rapid growth and heat stress.
Moisture content is a critical factor for successful harvesting and storage. Crops like wheat and barley require a moisture level below 15%, while OSR needs to be below 9%. However, high temperatures can quickly reduce moisture levels, as seen in France where maize crops are reportedly struggling and OSR moisture content has dropped as low as 3% due to extreme heat.
The unpredictable climate adds complexity to farming decisions. Growing a diverse range of crops can lead to harvest clashes if timelines shift. Rainfall delays not only affect crop quality but also force farmers to make difficult decisions about which crops to prioritise, making the entire process from planting to harvesting a significant gamble in an increasingly volatile climate.
The Met Office has issued warnings for increased temperatures across parts of England and Wales, with some areas potentially seeing temperatures climb into the high 20s and possibly exceeding 30C. Northern Ireland and Scotland will also experience warmer conditions, although generally not reaching the extremes predicted for the south of England. These conditions will likely exacerbate challenges faced by farmers, particularly concerning crop moisture and heat stress to unharvested crops.