If, for example, I am running a GLM with Poisson distribution (it could be any distribution) and I have a Randomized Block Design (RBD) [Note: I dont wanna run a GLMM just to put the blocks as a random effect]. So my model would be VARIABLE ~ TREATMENTS + BLOCKS. Because of that, R estimates the coefficients for the treatments and the blocks. The problem is that in the intercept is adding the effect of the first treatment with the first block, and I am not interested in the block coefficients for the model. How can i isolate the effects of the first treatment without the first block in the intercept?