Table 3 Effects of intercropping treatments and years on nitrogen content in roots, stems, and leaves of plants at the two experimental sites.
From: Effects of different intercropping systems on soil properties and tobacco yield and quality
Midu | Weishan | |||||
|---|---|---|---|---|---|---|
Root | Stem | Leaf | Root | Stem | Leaf | |
Treatment | *** | *** | *** | *** | ** | *** |
Year | * | * | * | * | ** | * |
Treatment × Year | * | * | * | * | ns | * |