Landscape wall: strawbale or rammed earth?

I have some property  in NE Nevada.  The harshest winter weather comes from the north, so was thinking about building a 10 ft tall landscaping wall about 50 feet long to the north and then putting my house and other living quarters just south of it, and close to it. I hope to build a natural fence for the rest of the perimeter, but that is going to take some years but I want to mitigate the effects of the weather asap.  I think I can talk a semi-retired farmer to grow the straw for me at a reasonable price - not much above his cost.  My initial concern with straw is mold developing inside the bales and the composting that will happen when it grows.  Straw would require some kind of covering - cob or stucco?  What would work for a foundation for straw?  For rammed earth, the soil is pretty void of organic matter, especially below 1 foot below the surface.  Hmmm maybe earth bags?  Suggestions?  Opinions?

10 ft. tall is pretty ambitious for a self supporting wall, as in cantilevered up from earth. A lot of sail surface. Be pretty wide at the bottom, have a lot of mass or be firmly anchored.  A 'wandering' wall would be a little more self supporting than a straight fenceline.
Don't know where you are at, but I worked up in the mountains out south of Carlin years ago, remember the wind can get clipping around Elko/Eureka at times.
Having said that, snowfences work, there are some along the 93, and you'll see them up in Idaho and Montana. Just need a fair amount material to build.

Without a roof to shed rain, or a truly waterproof cap, you'll have to get around to the idea that water will eventually find it's way in to your earth or straw.

True straw is the second cutting of grain, the stalk. Light, hollow, fairly inert. If the your 'straw' is being grown, and cut whole, it is more like hay. A lot of energy and biomass in whatever the seedhead contains.
Those are my first thoughts.

I was thinking maybe mud brick or regular brick could be something else to think about.

As a  Civil Engineer I can see all sorts of issues developing from this project.
I ask what is this mean? 'a natural fence'
Lets look at what you are trying to achieve.
- wind speed reduction
- weather protection
- 3M height

I dont build in a climate that you have, but I have learned a few things.
The scope is beyond strawbale or mudbrick from a weathering and moisture viewpoint.
Without knowing what size of property you are working with I suggest an earthern berm and mass planting around the area would appear to be what works well.
Space and time is required for this.
Anything constructed of timber etc will also fail over time.

The berm will require a large amount of material to get 3M high you may need a 12m wide  x 4M high pile.
50 feet long will require about 300 cubic yards of soil.
Such a berm will not move other than get a bit lower.