⌄ Number of studies by publication year ⌄

⌄ Number of studies by soil texture classification ⌄

⌄ Number of studies by study length (in years) ⌄

⌄ Number of studies by study length (where length less than 12 months) ⌄

⌄ Number of studies by experimental design ⌄

⌄ Number of studies using different levels of spatial replication ⌄

⌄ Number of studies across different study-level intervention types ⌄

⌄ Number of studies across different intervention-level intervention types ⌄

⌄ Number of treatments per study ⌄

⌄ Number of studies by outcome and final measurement year ⌄

⌄ Number of studies by outcome and intervention type ⌄

⌄ Number of studies by outcome and Köppen-Geiger climate zone ⌄

⌄ Number of studies by sampling equipment ⌄

⌄ Number of studies by soil type and internvention type ⌄