Wiepie Haagsma

Agricultural and Biological Sciences

1. Reduced Tillage 100%
2. Long Term Experiments 42%
3. Conventional Farming 40%
4. Organic Farming System 40%
5. Sandy Loam Soils 40%
6. Cash Crop 26%
7. Soil Quality 21%
8. Meta-Analysis 20%
9. Soil Organic Carbon 20%
10. Sustainable Agriculture 20%
11. Carbon Sink 20%
12. Organic Farming 20%
13. Soil Biological Properties 20%
14. Rhizoctonia solani 20%
15. Staples 20%
16. Crop Diversity 20%
17. Streptomyces Scabiei 20%
18. Conventional Tillage 18%
19. Carrot 9%
20. Onion 9%
21. Root Crops 5%
22. Sugar Beet 5%
23. Soil Property 5%
24. Cover Crop 5%
25. Bacterial Antagonist 5%
26. Bioassay 5%
27. Structural Soil 5%
28. Crop Production 5%
29. Soil Biology 5%
30. Soil Microbial Activity 5%
31. Plant Pathogenic Fungi 5%
32. Microbial Biomass 5%
33. Inoculum 5%
34. Soil Function 5%