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.
Dogs should be house-trained as puppies; 3 years old is very old to start training the dog. It is sometimes said that you can't teach an old dog new tricks. I would suggest that the dog should be kept outdoors, in a dog house. If the dog house is small (which would normally be the case) the dog will not foul it.