Tj Jefferson wrote:What is the purpose of this seeding? It makes a big difference if this is for forage, hay, cover in between winter crops...
Zone info? Spain is quite varied...
André Troylilas wrote:As for the pigeon pea, you could find the seeds in any asian/ethnic/african grocery shop...
the purpose is to build soil and after that plant fruit trees. Right now the soil is not in very good conditions, very low in organic matter < 2%, pH 8, quite high in lime and calcium, not salinized though, but compacted because, I reckon, of previous conventional cereal agriculture. Also N levels are not very high.
So the cover crop should jump start the soil conditioning process and creating a medium for microorganisms to thrive and help creating the medium where the trees will (hopefully) thrive as well. After the summer crop is cut, I plan on subsoiling and inoculating the soil with useful microorganisms and micorrhizas, plant the tress and continue with other cover crops.
As for the zone, we are in north east Spain, in central Catalonia. I think USDA hardiness zone 8 or 9, around 600 ml/m2 rainfall (some of it even falling in summertime).
"A hand seed spreader will work just fine, simply mix the seeds, fill the hopper bag and go have fun spreading seeds. Don't worry about seed depth for the sweet clover, it will come up.
but I wonder if having deep rooted perennial grasses in the field can create competition with the trees for nutrients at some point
I am deducing from what I read in your posts that it is not so important that the legume and the cereal are seeded in different lines but it might actually be better that the legumes are seeded in the same line and close to the cereal, so the cereal can benefit most from the N-fixation
I use basically a partial pressure calculation. If sorghum is listed at the monocrop rate, and will end up being 50% of your planting, you can do the math. Sweetclover is already calculated from what you are saying. I would rather put down too much than too little, I want no sun reaching the soil in the heat of the summer. The idea is that if you reduce the soil temperature you will have better microbial health.
How do I calculate how many seed do I need of each plant type then?
Nathanael Szobody wrote:I know I'm a bit late to this discussion....What about sweet pea? It'll climb right up that sorghum stalk.
If sorghum is listed at the monocrop rate, and will end up being 50% of your planting, you can do the math. Sweetclover is already calculated from what you are saying. I would rather put down too much than too little, I want no sun reaching the soil in the heat of the summer.
So what you are suggesting is Lathyrus odoratus, right?