WasteX Helps Farmers Grow More With Less, up to 52% Higher Yields

Recent trials have once again confirmed the remarkable benefits of biochar on crops—this time as part of a collaborative program involving WasteX, Yayasan Bina Tani Sejahtera, and Adakarbon across Java, Indonesia. 

The trials are conducted under the P4G Partnerships initiative, working directly with local farmers to explore how biochar can improve soil health, boost yields, and support more sustainable agricultural practices.

One standout trial took place in Batang, Central Java, where WasteX partnered with Kodri, a yardlong bean farmer. 

Two plots were used for comparison—one treated with biochar and one without. Both plots received fertilizers, but the biochar-treated plot used 20% less fertilizer, and it is used to charge biochar instead of applying it directly to the soil.

The results were striking. Kodri reported a 23% increase in yield, with the control plot producing 17.4 tons per hectare, while the biochar-treated plot yielded 21.435 tons per hectare.

Demonstration plots of yardlong beans, with biochar vs no biochar

In another trial in Pasuruan, East Java, WasteX worked with farmer Suyono to test biochar’s effects on tomato crops. The results surpassed expectations: the biochar-treated plots produced 2.3 tons,270 kg of tomatoes, compared to 1.8 tons,820 kg from the control plots. A 52% improvement, once again with 20% less fertilizer.

In addition to better harvests, farmers observed that biochar-treated crops were more resilient to rainfall and heatwaves. This increased climate resilience is critical as farmers face more unpredictable growing seasons due to climate change.

Visually, the soil treated with biochar also appeared darker and more crumbly—clear signs of improved soil structure and health. These physical changes suggest better water retention, aeration, and microbial activity, all of which contribute to stronger crop performance.

These early results highlight the potential of biochar to support more productive and sustainable farming. By improving yields, reducing fertilizer use, and enhancing soil health, biochar offers a practical solution that benefits both farmers and the environment.