What's the best pasture restoration technique for all of the different situations mentioned in this
thread? It depends...
How much time do you have - how quickly do you want to accomplish the restoration?
A well-managed pasture rotation will, over time, rejuvenate anything. The bison on the great plains fixed what the ice age pulverized and created amazing soil that the bread basked of North America depends on even today. But the big ingredient is time - design a very efficient pasture rotation and then repeat, repeat, repeat, for years. In extensive rangeland, or on soils that are too fragile to disturb with tillage, the
daily pasture rotationis the most powerful tool at your disposal.
Some of the fields are becoming overrun with weeds and produce poorer quality hay/forage each year.
Our long term plan for the farm is to move away from cattle and into vegetables, fruits and nuts. Perhaps after reading your book we will do both
The pasture rotation will also help to address some of weed concerns that Allen has as it creates the favorable conditions for grass to get the upper hand while creating conditions that makes weeds less competitive, it might also be a good way to start getting some manure in the soil in preparation for tillage later for your crops.
If you want to speed things up, addressing soil fertility imbalances and implementing a fertilization program will also make a huge difference. If it hasn't seen fertilizer for a while, then this is an obvious place to start. Don't just start adding
compost or fertilizer - start first with a proper soil analysis and tell the lab or soil consultant whether you want recommendations for organic or conventional production. If you have compost or manure available, get that tested too - just because these are good fertilizers does not automatically mean they are the right fertilizers for your specific soil - only a lab test can tell if it will help or make the soil fertility problems worse. The
Soil Fertility chapter of my book gets into this in more detail.
I have about 6 acres that used to be a cow pasture but has been left uncut, wild for probably 4 years.
Whether it is just weeds or brush and trees, cattle are affectionately known as "the poor man's bulldozer" for their ability to turn wild back into park - with a good grazing rotation. I've used them more than once in that capacity. With portable electric fences, it is also easy to briefly concentrate the cattle if you want them to pulverize brush and weeds so the grass has a chance to see the light of day again.
And now I'll get to some more aggressive pasture restoration techniques - get some steel in the field, so to speak - on soils that can handle some tillage.
Harrowing can help loosen up dead grass and begin rejuvenating the grasses, as long as there is a proper grass sod still in place.
Disking across a pasture - more aggressive - will help to loosen up root-bound soils, as will running a subsoiler through.
The most aggressive strategy would be to completely till up and replant, or to seed into a pasture using a range seeder. This is worth it if a pasture is very deteriorated, the soil is good quality, and you have the right conditions to be able to establish a fresh seed bed. Bigger initial outlay, but your land productivity bounces back very quickly so you can recover your costs and get the land earning money again.
Disking or tilling and replanting will also bring up a huge number of weeds. Yes the pasture rotation can eventually manage it, but unless you either have a mowing program ready to implement, or are willing to use herbicides, you could be facing quite a few years of heavy weeds to go along with your replanting/tillage. And if it gets out of control, they will choke out the things you seed. If you disk or till, your initial growth will be too vulnerable to let the cows onto - their feet will crush the young growth. That means mowing or herbicides are generally the only option if you use this kind of replanting/rejuvenation strategy.
However, regardless of the strategy used to rejuvenate, it is only as good as the long-term management plan you implement afterwards - if you are raising cattle, that means a good daily pasture rotation, preferably accompanied by a good soil fertility management program. You want to create the kind of conditions that encourages pasture plants to thrive so that whatever you plant, or overseed, actually flourishes and continues to grow more abundant. Discing, or replanting isn't going to do much good if you simply park cattle permanently on it afterwards without a good pasture rotation. However, once you have a good daily pasture rotation in place, and you see that the pasture plant species are starting to increase all by themselves, then you have the option of adding to the plant mix either with a range seeder, or - my favorite - by adding seed to the mineral ration so the cattle can spread it themselves. This method has a very low germination rate, but since you haven't had to start a
tractor, you can afford a low germination rate. I've overseeded with alfalfa and clover in grass pastures with this method - it took several years before we saw a difference, but eventually both became a meaningful part of the pasture mix.
Grass varieties
Different plants will do best in different regions. Furthermore, it is about matching the right grass species to your particular grazing goals. Start by making a very clear
farm plan for your cattle farm. The ideal
hay mix is going to be different than a pasture mix for a summer grazing program, while a winter grazing program will benefit from adding yet other plants to the mix to provide plants that are strong to stand up through snow and are more resistant to leaching. And then go to your seed supplier to put together a mix that specifically caters to those needs. Also ask your neighbors what is thriving on their farms - and make sure you include lots of those species in your mix. No matter how wonderful a plant looks on paper, if it doesn't like your soil/climate/environment, it isn't going to be much use.
Trees at the pasture edge
- go with whatever likes growing in your area - if your ditches and fence-rows are sprouting willow, poplars, mulberry, seabuckthorn, or whatever your
local bush is that likes to take over areas where there is little grazing, then that's probably the best place to start since you already have proof that this variety likes your conditions. The birds will be happy regardless of what you plant.javascript:emoticon('
'); And your cattle will be grateful that there are more birds to reduce the bugs that bother them. Picking bushes that already like growing in your area means it will take less time before you can start attracting birds to you cow pasture so your cows can benefit from their bug control. I love seeing a pasture full of cows that all have half a dozen or so birds sitting on their backs and heads.
Self medicating cattle
Yes, cattle do seek out certain plants to "self-medicate". However it is not a reliable alternative for intervening by calling a vet when an animal is sick. And sometimes they will seek out plants that are poisonous and will die just because they are looking for a certain smell or taste while sick. Unfortunately I am not a specialist on what plants to add to the mix for general preventative measures like worm control and so on - Be careful what you plant - know exactly what you are getting into before introducing any
medicinal plants into the pasture mix.
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You can learn more about pasture rejuvenation and about using your cattle and electric
fence grid as your most important farm management tool in this article series:
Part I - improving pasture yields, improving grass quality, loosening compacted soils, reseeding pasturesPart II - improving soil fertility, managing riparian areas, protecting sensitive areas Part III - increasing soil moisture, drought management, erosion controlPart IV - eradicating pasture weeds