| 名称: | |
| 描述: | |
| 公开/私有: | 公开 私有 |
| 标题: | |
| 描述: | |
| 公开/私有: | 公开 私有 |
检索词:
Organic farming.
,
检索到: 7 条结果,
检索时间: 0.176 秒
,
排序选项:
排序方式:
隐藏分类导航
分面检索
- agriculture (3)
- 研究 (2)
- agricultural laborers (1)
- california (1)
- employment (1)
- history (1)
- informal sector (economics) (1)
- juvenile literature (1)
- labor unions (1)
- migrant agricultural laborers (1)
- organic farming (1)
- united farm workers (1)
- women (1)
- women in development (1)
- 土壤结构 (1)
- 旱地 (1)
- 有机碳 (1)
- 粮食问题 (1)
- 耕作土壤 (1)
主题
| 1. |
|
|
|
| 2. |
|
|
|
| 3. |
|
|
|
| 4. |
|
|
|
| 5. |
|
|
|
| 6. |
|
|
|
| 7. |
|
|
