It appears your garden is inundated with nutsedge and called also nutgrass. I have much in my garden and I am constantly pulling the plant. It is very invasive and persistent.
Buckwheat is a standard annual cover crop and effective weed suppressor.
This "uninformed" poster did not say that legumes do not fix nitrogen; he said that when you allow legumes to grow pods, in order to harvest them, THAT's where the nitrogen goes, and is why they are high in protein.Winter is over here in East Texas and the experimental alfalfa has really taken off.
Just three weeks ago we were enduring one of the hardest cold snaps in recent memory...temps hit 8 deg. here one night and several nights fell into the teens...and the alfalfa survived it just fine while several other cover crop plants did not. In fact, it appears to have thrived.
Now it has absolutely taken off. It is about 15 inches tall and very thick and very deep green. The lack of thickness early on has been a concern for me using it as a cover crop, but over the winter it has increased "thickness" easily by 100%. That is important for weed control and soil building which is what this experiment is all about.
Alfalfa, by reputation, is one of the very best N2 fixing legumes...in spite of this fact being called an urban legend by one uninformed poster here. This small test plot has not received any artificial N2 and look at the deep green colors. No question in my mind it is building N2 in the soil. It was cut about 8 times last growing season providing huge amounts of green matter for the soil.
I'm now considering, based on these positive results, possibly expanding this into a commercial hay field for the production of alfalfa hay. At $15 per bale from the horse folks around Houston, this has the possibility of being an interesting economic venture.
For certain, at a minimum, I'm going to expand the use of it in my garden's cover crop rotation program.
Oneeye...you were a big proponent of alfalfa here and if you are still on this forum, which seems unlikely, give me a shout out. I'd love to hear yours or others comments.
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