Eggasperated Posted March 29, 2012 Share Posted March 29, 2012 We have finally had the root from the massive poplar tree that blew down in January removed. The tree surgeon brought in an industrial size stump grinder and we ended up with 4 of those huge builders sacks of rough chippings. I opted to keep them as I'm sure I should have a use for them but now I can't think what. Don't know whether they are suitable for the chickens. Could I use them as a weed suppressant round the apple trees, but I'm very conscious of the fact that as they break down they may actually take goodness out of the soil (think its the carbon nitrogen ratio thing)? Far too many and too big for the compost heap (already have loads of bags of fine chippings from the main tree removal). Comments on the above welcome , and any better suggestions Quote Link to comment Share on other sites More sharing options...
Gertie Posted April 1, 2012 Share Posted April 1, 2012 I have lots of chippings from recent felling. I'm going to use them to cover a woodland path, a bit for the chickens & leave the rest where they are. I found this info which may be of use Using the chippings Once a stump has been ground out and is a pile of wood chips, the chips can be used as a mulch or compost. The decomposition of chippings in garden soil causes microbes to absorb nitrogen and upset the ph balance. These notes have been prepared to make the chippings useful in the garden. Flower Beds If the stump was very small (less than 8-12 inches across) and in a flower bed you can get away with dispersing the debris from the grinding widely in the surrounding soil and generally levelling the flower bed. A periodic ph check will show if you need to add nitrogen to reduce acidity. If the stump was larger and you intend to replant, all the chippings need removing and the hole needs filling with fresh topsoil. Fresh chippings used as mulch around annuals and perennials will probably kill them. Out of the way spots The pile of chippings and churned earth can be left over the hole. Nature will level the pile. Lawns If you wish to grass the area where the stump was, all the chippings must be removed and fresh topsoil imported. If you don’t, seed will not flourish and turf will perish. Using the chippings Chippings can be used immediately to cover paths or play areas; chippings decompose slowly and soften the surface. If you have more than you can use you may be able to help a neighbour. You can use them as mulch around mature trees and shrubs. Wood chips from different trees have different levels of acidity; Ash, Beech and Oak can probably be used immediately around established subjects and wood chips from conifers may be used to mulch a Leylandii hedge. See under “Mulching”. To be on the safe side the chippings can be composted and the compost can be used to benefit trees and shrubs in the garden. Composting chippings. The process of composting is chemically highly complex. This guide is designed to give the amateur gardener practical help. If you want more detailed information on composting and mulching, some web sites are given at the end or your Garden Centre may be able to help. Small quantities of chippings can be added, a layer at a time to the compost heap, particularly if it is mainly grass clippings; the wood chip will add fibrous material. The time taken to turn fresh chippings into compost is indicated below. Three Years: Compost chippings alone. One year: Mix in an equal volume of grass clippings or 5lbs of urea per cubic yard, and leave to decompose. Either additive will provide the necessary nitrogen. Three months: As for one year but turn the pile over every week for one month and every two weeks thereafter and keep adding sufficient water to keep the pile moist. Mulching Composted chippings can be used as mulch. The best use of wood chip mulch is around trees and shrubs. In the border, properly applied, composted wood chip mulch will suppress weeds, enhance plant growth, conserve soil moisture and insulate soil from temperature fluctuations. The mulch should be laid no more than 4 inches deep and tamped down. If you are mulching trees or shrubs, the mulch should extend beyond the canopy, and be 6 inches away from the trunk. Mulch can be applied to trees in a lawn. If you are making a new planting in a lawn, remove the turf to a diameter of 3 feet greater than the planting hole and apply the mulch as above. If the tree to be mulched is established in a lawn, do not remove the turf before mulching, as this may cause surface root damage. Other points to consider Stones The grinding process will have propelled stones and stone chips onto the lawn. Before mowing take care that all stones have been removed; they can blunt the mower and if thrown up during mowing can be dangerous to people, pets and glass! Re-growth The grinding process will prevent re-growth of most trees. However willow, poplar and some varieties of flowering cherry for example have a habit of regenerating, sometimes up to 5 years later. Quote Link to comment Share on other sites More sharing options...
Eggasperated Posted April 1, 2012 Author Share Posted April 1, 2012 Thank you Gertie, a very comprehensive answer . Looks like I won't be able to use it round the apple trees. Also a bit worried about the possibility of Poplar regrowing up to 5 years later . I did donate a few chippings to the chickens today, so they're happy. Quote Link to comment Share on other sites More sharing options...
Olly Posted April 2, 2012 Share Posted April 2, 2012 Wow, that's very scientific, Gertie! I would use them in the chicken run - they will be slow to compost once they've been used, but the nitrogen from chicken poop will balance out the acidity! Or use them for a path - I save all my wood chippings for a friend who uses them for paths on his allotment. Quote Link to comment Share on other sites More sharing options...
Gertie Posted April 2, 2012 Share Posted April 2, 2012 I found the info on this site http://www.stumpbusters.co.uk/index.php?option=com_content&task=view&id=39&Itemid=54 I'm not a chippings expert!!! Quote Link to comment Share on other sites More sharing options...