(NEW MEMBER) Could possible problems arise from growing sorghum in main-crop gardens, caused by apparent alleolpathic chemicals? Any way to stop it besides not planting it? Either from planting sister crops with it or using the stalks and leaves as green mulch after harvest could it end up affecting the soil and inhibiting seed germination next spring. Also, any good/unusual/innovative growing techniques and plants that could be planted with sorghum. Thank you.
You could potentially mitigate the the effects while inter-planting if you drip irrigated. This might reduce root interactions. Planting the companion crop first seems to help. Corn has resistance to the chemicals so it may make sense to follow sorghum with corn. I have had squash and beans do alright inter-planted with sorghum, pepper have not done well for me. If you plant anything in with sorghum you really need to fertilize it well otherwise it seems like the sorghum root system dominates.
Have you got any links with more information about the alleopathic effects of sorghum? Because I live in the heart of (former) sorghum country, the little town I live in calls its fall festival "Sorghum days" and they still have a donkey-driven sorghum mill they pull out every year, and I hadn't heard of a problem with this. Of course nobody is growing sorghum commercially around here any more and when they did, they were probably mono-cropping it so it wouldn't have been much of an issue. But I'd still like to know more.
I found some links
-http://www.sciencedirect.com/science/article/pii/S0167880999001401 ( abstract only )
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