Soil pH
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 2 benchmarks together — the OptimalRange form drives the primary score, while 1 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Synthesizing the information from the benchmark discussion and the lower critical threshold, an Optimal Soil pH Range of pH (CaCl₂) 5.8 to 6.8 is proposed for agricultural crop production systems in Australian Tropical Monsoonal Savannas aiming for high ecological health and sustainability.
Soil pH measured in 0.01M CaCl₂ solution, indicating the optimal functional range for ecological integrity and sustainable production.
Optimal soil pH range measured in 0.01M CaCl₂ that supports nutrient availability, microbial activity, and good CEC for sustainable agriculture.
This range supports good nutrient availability, avoids major toxicities, fosters beneficial microbial activity, and maintains good CEC, conducive to overall ecosystem health and sustainable production.
Sources (1)
Cotton Production and Sustainability in the Northern Territory: A Comprehensive Analysis of Yield, Soil Properties, and Cover Crops (Mwando et al., 2024, In: Proceedings of the 21st Australian Agronomy Conference)
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
General soil science principles and reviewed literature
View Source