Use Case 2: Variable-Rate Liming to Optimize Crop Yields and Improve Resource Efficiency in Germany
Overview:
Soil acidity is a critical factor affecting soil fertility and crop yield. In Germany, soil pH levels in agricultural fields often fall outside the optimal range, with 42% of arable soils and 57% of grassland soils showing low pH levels. Current liming practices, based on outdated guidelines, fail to account for soil variability, leading to inefficient resource use, blanket liming treatments that are tailored to no specific field area, and thus suboptimal crop growth.
Challenges:
- Traditional liming practices do not address field-scale soil heterogeneity.
- Existing liming guidelines are insufficient for current precision farming needs.
- Soil data for precision farming is limited to coarse classifications, causing inaccurate lime applications.
Smart Farming Applications Involved:
- Variable-rate liming
Expected Outcomes:
- Development of high-resolution lime requirement maps using autonomous sensor-based mapping, with reduced costs compared to current alternatives.
- More efficient liming strategies, improving soil acidity management, and improved farmer crop yields.