How far does fertilizer travel?

lucille(Houston)March 19, 2014

I have an intensive and compact garden. I am trying to find additional space for some pole beans, and I have read that beans do not do well with added fertilizer.
How far away from plants that need fertilization can beans be planted?

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I would think that 2-3 feet should be sufficient. You just don't want them getting too much N so that they put on more foliage than beans. Any additional P or K would be fine. If you have to crowd them less than 2 feet I would plant something next to them that also has lower N requirements like other legumes or tomatoes, ect.

    Bookmark   March 19, 2014 at 1:54PM
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seysonn(8a WA/HZ 1)

Fertilizer can travel as far as water can. And generally, water does not travel horizontally very far.

What you can do is to put a plastic barier , similar to what they use between grass and garden beds. They are about 6-8" wide and come in rolls, sold at garden center @ HD and elsewhere. Alternatively, you can use a 9/16 x 6" cedar board, the ones are used to make fence with.
As I said, water tends to go down by the force of gravity. UNLESS the bed is flooded.

    Bookmark   March 19, 2014 at 5:48PM
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digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

Also depends on the type of fertilizer. Water souable fertilizers will spread/dissipate out further than a dry granular one will even when it gets wet.

Ideally legumes should be planted as far away from routinely fertilized crops as possible - like a separate area - but that isn't always practical. When it isn't then choose granular supplements rather than liquids or as suggested, some sort of barrier between.

Many gardeners use flowers or other run-off trapping crops between the crops with very different needs but if your space is really limited then that would be a waste of space.


    Bookmark   March 19, 2014 at 6:41PM
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