Hello, In my zeal to soften the clay soil of my vegetable garden (after unsuccessfully trying to do so with vast amounts of organic matter), I added gypsum. I misread the instructions and added 50 lbs to a 150 square foot area when the instructions suggest 50 punds for 1000 square feet. Any idea if I will have problems and if so how I might address them? Thanks
Dig it out by hand or with a man dozer and replace the soil with a proper amendment. There is little you can do now that wont exacerbate the error. It's only a 10 by 15 foot plot so not impossible. You should be able to spread the take out over a larger area to reduce the gypsum concentration. Bob
Just an update, in case someone comes across this topic in a search sometime in the future.. I was too lazy to dig it all out, so I took a chance and planted. No problems so far. I planted carrots, beans, peas, squash, carrotts, tomatoes and cucmbers and none appear to be suffering. In fact they are growing as well or better than what I planted in another plot. We'll see what the gypsum does for the clay.
Not yet, but from my reading it may take a few seasons. The granuals appear to be well distributed throughout the soil, but have not disolved completely. I suppose there is some possibility of deferred ill effects as they dissolve as well. I will try to keep you updated.