盐渍土分布、危害与资源利用技术
Interpretation of Soil Test Results
New Hampshire Soil Data Dictionary
Soil Analysis Key to Nutrient Management Planning
Soil Testing & Plant Analysis
Apple -Clemson University
Changing the pH of Your Soil
Effect of low soil pH from different fertilisers on performance of apple and pear trees
Soil Chemistry
Soil pH and Nutrient Availability
