Here is something I am experimenting with this summer that I thought I'd share with the permies:
I am at the stage where I'm ready to plant out a few thousand square feet of spring barley but I have a challenge...
I don't have a
tractor and the heavy equipment typically used for propagating annual cereal crops is overkill anyway. I have access to pasture land, but this will need tilling.
The only option available for me is a rototiller, but that is a lot of rototilling, and I'm recovering from a back injury which means that it would be too much for me anyways. So I am forced to find an alternative method of planting my seed.
I've been reading up on direct seeding into pasture. The good news is that it works well for beans and corn. The bad news is that barley doesn't do so well. The trials also involved specialised heavy equipment.
So this summer, instead of planting out my 2000 square feet, I decided to try direct seeding some barley into my
lawn. I figure if I can successfully direct seed into Kentucky bluegrass, then I can apply my techniques to pasture.
Since I've been successfully growing tomatoes in my lawn for a few years, I've noticed that the lawn
root mass is a great living mulch that locks in soil moisture. The challenge is getting the seeds through that protective carpet.
So I got my hands on a lawn edger, which is basically a 4 inch blade that you stomp on, and it cuts through the grass
roots that are encroaching onto your pathways. I used this tool to cut some lines into my lawn in an inconspicuous place. I did this into dry ground, in the hope that when rains come, the soil will swell the cut shut. After a bit of tinkering, I managed to make a slit wide enough to fit my next piece of special equipment into.
I hunted around and found a metal tube that was narrow, and yet large enough for a barley seed to travel down. I then attached a few cable ties two inches from one end of the tube, and trimmed the tails to be 3 inches long. I could then insert this tube into the cut exactly two inches deep, and the tail of the cable ties mark where the next insertion is to be.
I then dropped a seed into the other end of the tube and in travelled down into the soil. It is a very primitive seed drill. I found it helped a lot if I blew down the tube with each seed to shoot it out the end along with any soil that may have blocked the exit. So really, it is a very primitive pneumatic seed drill.
Now, 2 inches deep is the maximum depth that the ag department recommends (actually they advise against planting so deep), however, these seeds are not covered, and so my thinking is that they need to be deeper than is standard so that they remain moist. Since some light will get down those cuts, the effective depth of the seed will be somewhat less than the actual 2 inches.
So shortly after planting, it rained and the cuts more or less closed up as expected. But they opened up again about 5 days without further rain.
I know from my planting logs that the barley takes about 14 days from planting to emergence. So a week after planting my seed, I mowed the grass close to the ground in the hope that it will reduce the competition for sunlight as the seedlings emerged.
14 days later I went out and checked the cuts. It's hard to tell quite yet, but I am pretty sure the barley has successfully emerged from my lawn. I should know within two more weeks if germination was successful, because the barley grows to about 5 ft high, and should be obviously identifiable by it's growth habit.
Now, this technique is more time consuming than tilling. But it beats tilling with a spade, or a rototiller due to the far lower physical effort required. The most time consuming part is the seed drilling, and I'm sure that with a bit of engineering that a hand operated precision seed drill could be fabricated.
Right now though, I'm more interested to see if the principle will work. And then worry about scales of efficiency if it's successful.