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Shredded newspaper as growth medium
Amended to improve drainage and fertility. This stuff
has good water retention, and you can't beat the cost. Anyone tried this? |
#2
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Shredded newspaper as growth medium
In article ,
Father Haskell wrote: Amended to improve drainage and fertility. This stuff has good water retention, and you can't beat the cost. Anyone tried this? It won't improve fertility because it contains no plant nutrients and requires nitrogen to break down, although the nitrogen is released eventually. In my garden (Toronto, Ontario) it breaks down in a year or less when I use newspaper as mulch and then bury it. Unlike natural woody material, paper is cellulose with the lignins removed. Lignins are huge complicated molecules that last a very long time and form humus. Cellulose is metabolized by fungi and other microbes completely. That said, it will improve tilth for a while at least, but you really need more long lasting material to substantially improve heavy soils. I gather the bags of leaves my neighbors put out for pickup and after a good many years I've converted a soil that's basically a gooey nearly pure silt to something approximating fluffy, at least when it's not too wet or dry. Sawdust is good stuff too, as long as you get it from a mill, and are aware that it too takes up nitrogen as it's broken down. Sawdust from a lumber yard may contain material from treated lumber which can permanently contaminate your garden with arsenic and other toxic metals. You might also try green manure crops. Annual grasses and grains have immense ramifying root systems that greatly improve crumb texture. Deep rooted plants like sweet clover drill down as much as several feet to break up hardpan and improve drainage. It's not unreasonable to experiment with this in small areas of a few square meters. Upshot -- paper is better than nothing, but the effect lasts only a year or so and will compete with your crop for nitrogen. You may get more and better answers in rec.gardens. |
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