- Rodale Farm is all about no till - http://rodaleinstitute.org/our-work/organic-no-till/
- Not sure about adding salt, unless you mean adding seaweed or ash? Salt is bad for the soil, and so it's known that those substances should be used prudently
- As far as caring about the value of their land, it's valuable to have an organic farm since "organic" cows have to be raised on organic soil. Organic milk has higher retail value, which can be seen as adding value. You can also work with other farmers that want to produce organic milk, by helping them transition by using your own land [edit] for a fee...
- "organic herbicides are less efficient, so organic farmers use more". Not sure this is true, my work with Rodale has mostly been towards trying to rid the farm of pesticides and finding natural ways around them. Not sure about big ag though.