Hello Researcher

I am a beginner with the use of SAS and Specially Orthogonal contrast. My experiment involve 4 rate of Nitrogen (46,69 and 92 kg N) at 3 time of application plus a control for bread wheat. The trail was at field by RCBD with three replication. The different responses are labeled as variables 1-30 as depicted in the SAS command I just prepared.

My treatments are:-

N-rates= 3

N application time =3

Control=1

Total treatments= 10

Thank you for your recommendation!