I want to analyse (using R software) the response of cabbage yields cropped in 2 different locations when different doses of fertilizer have been applied . For each location, I have designed the trial using a Completely Randomized Block Design with 5 levels of Nitrogen fertilizer x 3 Replications.The aim is to analyse whether or not cabbage yield is affected by the fertilizer, the location, or their interaction. Any help, reference, or suggestion is appreciated.
Thank you
Hi Dr. Moctar Kante, Thank you for the reply and the references.
It is an Anova that I want to do and the genotype is just one.
I need to test if yield are different when subject to different fertilizers dose, different locations, and by the interaction between fertilizer and location. I am not sure which is in my case the blocking factor and if I shall include an error term in the code. Following your link, or the car package, I think my model should look like this:
model
Hehe ok Moctar.
I have been doing more literature review, and actually the code is much more easier than expected. My blocking factor is necessarily the location, the replications I suppose must be considered as observations. So I came up with an easier code
model
use SAS computer software for the general linear model. If you are interested, i willl send you the SAS syntax.
Ok Moctar, What is the code to nest them in the locations?
Thanks
Beenmet, I don't have SAS. Thanks for the suggestion
- Badges
- Science topic
- Similar topics
- Agricultural Science
- Agronomy
- Crop Science