Willem van Geel

Agricultural and Biological Sciences

1. Humification 100%
2. Long Term Experiments 73%
3. Soil Quality 73%
4. Kelp 65%
5. Animal Manures 65%
6. Crop Residue 65%
7. Seaweed Products 65%
8. Soil Biology 65%
9. Dairy Cattle 65%
10. Cover Crop 65%
11. Soil Fertility 40%
12. Crop Production 40%
13. Phytophthora infestans 32%
14. Onion 32%
15. Crop Quality 32%
16. Plant Parasitic Nematodes 32%
17. Spring Barley 32%
18. Soil Structure 32%
19. Soil Nematodes 32%
20. Soil Nutrient 32%
21. Plant Available Water 32%
22. Sugar Beet 32%
23. Nutrient Balance 32%
24. Phytophthora 32%
25. Crop Biomass 21%
26. Crop Models 21%
27. Monoculture 21%
28. Europeans 16%
29. Microelement 16%
30. Plant Defense 16%
31. Saccharina Latissima 16%
32. Organic Farming 16%
33. Biotic Stress 16%
34. Blight 16%
35. Lees 16%
36. Saccharina 16%
37. Storage Quality 16%
38. Dose Response 16%
39. Annuals 13%
40. Nitrogen Mineralization 13%
41. Vegetable Crops 8%
42. Sandy Soil 8%
43. Animal Species 8%
44. Groundwaters 8%
45. Concentrates 8%
46. Surface Water 8%
47. Plant Growth 8%
48. Carbon Cycle 8%
49. Anaerobic Digestion 8%