yes you can buy turmeric powder at walmart, but it depends on how organic you are trying to get it. if your not sure try a local indian store and will be sure to have it.
tabade pharmacy
You can buy Turmeric Powder at most grocery stores in the spice section, usually it's just called 'turmeric'. However, you can usually get a much better price at an Indian grocery store, since it is used a lot in Indian cooking.
Any reasonable grocery store or supermarket. It is a common spice.
From Felopio Rep. in Calabar
buy turmeric powder then take a glass of distilled water add 1 teaspoon turmeric powder to it you will notice that the color of the water turns yellow this solution is your indicator
Turmeric is a common substitute for saffron because saffron is very expensive to buy but if a recipe calls for turmeric you can use saffron instead.
Luis Lagos y Lagos has written: 'Vademecum'
A piece of turmeric which when crushed gives you a turmeric powder
turmeric: pasupu పసుపు
Lagos is in Nigeria :]
Dos Lagos