Some examples are shown in the following gallery with crops arranged from sensitive to very tolerant.. 1  Graphs of crop yield and soil salinity in farmers' fields ordered by increasing salt tolerance. 2  Fig. 3  Fig. 4  Fig. 5  Fig. 6  Fig. 7  Fig.
He should be at least 18 months old and have been doing public access training (performing his already mastered skills and tasks) in public for at least six months reliably before being transitioned from service dog in training to full service dog.
When to Begin House Training Puppy. Experts recommend that you begin house training your puppy when he is between 12 weeks and 16 weeks old. At that point, he has enough control of his bladder and bowel movements to learn to hold it. If your puppy is older than 12 weeks when you bring him home and heâs been eliminating in a cage (and possibly eating his waste), house training may take longer. You will have to reshape the dogâs behavior -- with encouragement and reward.