A few pictures here for the library on sodium chloride damage on raspberry. Leave tissue concentration of sodium is over 250 ppm and chloride over 20,000 ppm (that's 2% of total dry tissue!). Interestingly accumulation of the micronutrients zinc and copper in these plants is also notably higher than what would be normal for raspberry.
Nice note here from the International Plant Nutrition Institute on the patchiness of micronutrients in the field:
It's a pretty short article, but there is a very important point being made. Micronutrient deficiencies don't happen over the whole field and occur as a result of the spatial variability in soil characteristics that end up affecting micronutrient availability to the plant. These soil characteristics are things like pH, texture, organic matter, cation exchange capacity, EC and soil drainage.
The kicker for the grower or field practitioner is assessing the true extent of the micronutrient deficiency in the field since it is so patchy. Hard to make calls on something like this.
This post is to announce a meeting on strawberry mineral nutrition to take place this coming January 30. I think it might be good to spend a little bit of time on the current salt situation as well, seeing as it is related to nutrition and water.
First presentation will be in Spanish, and the second in English, with translation provided for both.
Growers and PCA's - bring a copy soil and/or tissue sample analysis for review of sufficiencies/deficiencies/toxicities in our final exercise.
Look forward to seeing you there!