Subject
- Herbicides45
- Weeds -- Control43
- Pear21
- Herbicides -- Research20
- Strawberries20
- Weeds -- Control -- Research20
- Hazel11
- Beans10
- Apples9
- Boron9
- Lilies8
- Plants, Effect of nitrogen on8
- Cover crops7
- Germination7
- Sweet corn7
- Anthocyanins6
- Douglas fir6
- Hazelnuts -- Disease and pest resistance -- Genetic aspects6
- Mulching6
- Nitrogen fertilizers6