This is a continuation of What’s in the Pasture. I have a lot more plants to go.
I changed the fence to move the sheep from the south half of the Horse Pasture (no horses for a long time) to the north half. They came running.
They were ready for fresh feed…
…because this is what they left behind. I have moved the net fence a few inches off the fresh pasture. You can see what it looked like on the other side of the fence.
I think this is orchardgrass, but I’m not 100% sure.
When you identify grasses it helps to look at more than just the seed head. This photo shows the ligule which this publication from the Wisconsin Cooperative Extension (which also has a good diagram of grass parts) describes for orchardgrass as “prominent; cuts or splits on whitish margin”. Yeah, I can see that. This one from UCD is also a good resource.
Lately I have left my 40 mm lens on the camera and get a kick of of looking closely at things that I see better on my computer than through my glasses.This one is Curly Dock.
Here is the not-so-interesting photo of it.
I have made good progress at getting rid of Spiny Cocklebur, but it will never all be gone. I continue to chop any of these that I see. Obviously I haven’t dealt with these along the corral fence but need to take a shovel instead of a camera when I walk out here. 
You can see why it is undesirable and the reason it thrives even where everything else has been eaten. Besides the thorns the flowers develop into nasty burs that stick in fleece and hurt fingers.
Speaking of thorns and eating, I’ll deal with the thorns when the eating is this good. And I won’t complain that the bushes are completely covering the electric fence. I had my first ripe blackberry this morning.
I irrigated this weekend. The sheep were just moved off the paddock to the right and when it dries up enough they will go on the one to the left. Can you see the difference? It took only two days for them to eat that feed.
One of their favorite plants is Birdsfoot Trefoil. It is a legume which means it is one of the plants that converts nitrogen in the air to a form that can be used by the plant. It is actually not the plant that does that but the bacteria that live in nodules on the roots of legumes.
Clovers are also legumes. This is a variety of white clover.
This morning I noticed just a few of these flowers. I can’t decide if this is a variant of the white clover or is a different species. The leaves are similar. I’ll have to do some more checking.
Do you see how most of the other plants have been eaten and this one has not been touched? The sheep avoid plants that are toxic to them. This is Narrow-leaved Milkweed (Asclepias fascicularis). Not only is it a favored species for the monarch butterfly but according to a 
These are Narrow-leaved Milkweed flowers in various stages…
…and a close-up.
Field bindweed (Convolvulaceae arvensis), also known as morning glory. It is, according to a 
Soft Chess or Soft Brome, a non-native annual grass.
Medusahead as it is drying out. Medusahead covers thousands of acres of California foothills. It is not normally found in irrigated pasture, but it is in the easternmost paddock here which sometimes does not irrigate well. I have reclaimed part of that paddock, but I continually fight this plant. I find patches of it in other areas of the pasture and, although this is not an effective control technique, I pull it up by the handfuls as I walk by, coming back to the barn with it stuffed in the pockets of my overalls. It is a nasty plant that is “…among the worst weeds: not only does medusahead compete for resources with more desirable species, but it changes ecosystem function to favor its own survival at the expense of the entire ecosystem…Because grazing animals selectively avoid this plant, and because medusahead thatch tends to suppress desirable forage species, infestations often develop into near-monotypic stands.” From the 
I have ID’d this one as Blunt Spikerush (Eleocharis obtusa), not a grass, but a sedge that is found on poorly drained soil and marshy areas. That’s my pasture…poorly drained soil. There is a lot of this sedge in the middle and south end of three or four of the paddocks. It looks like foot-tall grass, but that is why it is important to actually look at what is out there. This does not make good forage.
A rather artsy shot of Buckhorn Plantain, found throughout California…
…and a photo in which you will probably more easily recognize it.
This was taken from standing in the northwest corner of the property and looking west. When SID (Solano Irrigation District) opens the right gate the water comes down that canal, through a gate in the cement structure at the bottom of the photo and…
…comes up through this standpipe. It goes out that hole on the left and…
into this ditch. At the end of the ditch it turns south and goes into the other part of the pasture. Later in the year this ditch will require weed-wacking for the whole length to allow the water to flow. This time I didn’t need to do that.
This part of the ditch has old pipes that take the water under the burm. I can find two of the three that used to be functional.
The first job is to dig out around both ends of these.
As I walk through the pasture I find thistles that need to be chopped.
The rest of the pasture doesn’t have those pipes, but instead has cut-outs or places where the burm is cut away to allow the water to flow from the ditch into the pasture. I didn’t get photos of those. This photo is a cut-out (under the fence) that I had to fill in because it was where we had cut through the burm to allow water flow INTO the ditch in the winter to help drain the rainwater that was all around the barn. 
Here is the place at the northeast corner of the pasture where I have to put a tarp to keep the water backed up in the ditch. After this point the ditch turns south and drains at the southeast corner of the property.
I can never remember what size tarp to get. I bought 2 sizes and took this photo to remind myself that this one is just fine.
The idea is to set the tarp so that the edges are buried in dirt and those boards behind will keep the water from pushing the tarp down flat. I did this twice. 
The first time the dirt that holds the tarp down on the bottom was too high. That means when I released the tarp at the end of irrigating there would still be a dam. I have a hard enough time getting the ditch to empty that I don’t need to impede it more.
This is a second tarp that I set just around the corner in the ditch that goes south. I shouldn’t have to do this, but due to gopher holes, tree roots, and maybe my lack of irrigator skills it seems that one is never enough. Two tarps hold the water back better. Or at least one is a back-up for the other.
While I was working in the pasture I saw that a couple of lambs had their heads through the electric net fence and didn’t seem to care. That prompted a search for the problem with the electric fence. I found a broken wire at the south end. I got new wire and fixed it but then found several more places where I had joined new wire to old. The more times you do that the less conductivity there is. So I took out a long stretch of the old pieced-together wire and replaced it. Low and behold, my tester showed higher strength than it has in years!
One thing leads to another. While I was at that end of the pasture I was bothered again by the old dallisgrass that effectively mulches my pasture. It’s one thing to mulch a garden to keep weeds from growing, but mulching a pasture is counter-productive. If you search dallisgrass in this blog you’ll find many attempts to deal with this. This time I was simply knocking it off the electric wire that is about a foot and a half up on inside this fenceline. It broke and pulled away so easily at this time (this is last year’s dry grass) that I started pulling it away by the armfuls. I didn’t have any tools or even gloves, but threw mounds of it over the fence–hey, I’ll mulch the outside of the fence and maybe keep the growth down there. That felt somewhat productive although it may not be useful at all. But at least I could see a difference in the before and after.
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