Weeding out problem plants

Weeds can be a real problem for coffee farmers. Those with deep root systems compete with coffee trees for nutrients, reducing yields. However, weeds with shallow roots can help with water and nutrient retention and by increasing soil microbial diversity, which can help lead to higher yields for farmers. As a result, the widespread use of chemical herbicides like glyphosate should be avoided, with good weed management being used to keep the soft weeds and remove the noxious ones.

In March 2023, 36 coffee farmers in China’s Simao District received training in Integrated Weed Management, organised by Pu’er Tianchen Coffee Ltd and Rainforest Alliance. Participants learned the methodology of integrated weed management in coffee plantations, the relationship between weeds and soil fertility, and the impact of chemical herbicides on coffee garden ecology.