I need help. I planted my vineyard in 2013 here in Kennewick, WA. I have drip irrigation. I have a dramatic variance in vine rigor throughout the vineyard even among the same varieties. I'm very concerned as several vines won't even come close to reaching the bottom wire in year 2. Looking at this photo, 
the varieties in the 2 closest rows are Grenache, next row is Syrah, next row is Syrah and Mourvèdre, 5th row is a mix, and the furthest row is Riesling. The grapes at the bottom of the hill appear more vigorous. Here is another view this time looking down the hill (same vantage point. 
here is a view from the top of the hill with Grenache to the far right. 
Following are two close ups of some stunted vines. Again, this is their second year.
. The smaller ones leaves appear lighter green. I've fertilized and keep a regular water schedule as we only receive 7" a year.
Any ideas as to what is wrong?
the varieties in the 2 closest rows are Grenache, next row is Syrah, next row is Syrah and Mourvèdre, 5th row is a mix, and the furthest row is Riesling. The grapes at the bottom of the hill appear more vigorous. Here is another view this time looking down the hill (same vantage point. here is a view from the top of the hill with Grenache to the far right. Following are two close ups of some stunted vines. Again, this is their second year.
. The smaller ones leaves appear lighter green. I've fertilized and keep a regular water schedule as we only receive 7" a year.Any ideas as to what is wrong?
