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NW Washington | One thing I have seen used on wheat straw when planting wheat behind wheat is a fire which is not a good idea. But it works.
I think Washington State U did some studies on using various things to reduce the volume of wheat straw and stubble but came up with no good results. The straw really needs to be in contact with the soil so that the microbes in the soil that decompose the straw can do their job. And they also need moisture and non-freezing temperatures to work.
I know some use a light disc, VT machine, or a heavy harrow to beat down the stubble and get some straw decomposition going so they can seed the next crop without more tillage. | |
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Residue breakdown products
