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| How early did you plant your radishes and how big did the radishes get? Also how deep were your tile lines?
I have heard enough anecdotal reports of tile plugging to believe this is a real issue but I wonder if the main problem is that the radishes were planted too early.
Radishes planted mid-summer (following small grains or prevent plant situations) can get enormous, especially if planted at low populations.
Tile plugging seems much more likely when radishes have a chance to get very large.
With adequate moisture and fertility, radishes planted 1.5 to 2 months before the average frost date can accomplish much of the nutrient scavenging, biodrilling, biological activation etc... accomplished by radishes planted in mid-summer (3+ months before frost).
Potential negatives like plugging tile, going to seed, filling the neighborhood with rotten egg odor :->, all should be less likely with later planted radishes.
I have never heard of radishes planted after corn or bean harvest (or overseeded into standing crops) causing any plugging of tile.
Joel
WIU Agriculture
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Some questions for anyone who has had problems with radishes plugging tile
