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About the Author anthony1 blacktown 29th April 2011 11:11am #UserID: 5171 Posts: 3 View All anthony1's Edible Fruit Trees |
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About the Author Olga Brisbane 29th April 2011 12:31pm #UserID: 5173 Posts: 20 View All Olga's Edible Fruit Trees |
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About the Author Fremantle 2nd May 2011 12:08pm #UserID: 0 Posts: View All 's Edible Fruit Trees |
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Wayne says... Fruit drop is often caused by the soil going from wet to dry. To overcome this problem surface mulch to the drip line and apply a heavy dressing of GYPSUM two clenched handfuls per sq metre under the canopy.This will improve the texture of the soil and assist in maintaining soil moisture | About the Author Wayne Mackay QLD 2nd May 2011 2:30pm #UserID: 338 Posts: 908 View All Wayne's Edible Fruit Trees |
About the Author sydney 2nd May 2011 2:34pm #UserID: 0 Posts: View All 's Edible Fruit Trees |
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Wayne says... Can't offer a solution to the problem once again Kert? this seems to be a trait of yours. Gypsum is also a moisture retainer suitable for all soils, I have sandy soil and find it quiet useful for that purpose as well, it does not alter the PH of the soil in any direction and using it in ANY soil is not harmful. Of course there are other reasons for fruit drop such as a disease like anthracnose but neither poster indicated symptoms of that and nor did the photo of a very healthy tree. If the stem of the fruit shows no disease I would go the way of my first post and perhaps add sulphate of potash for good luck. | About the Author Wayne Mackay QLD 2nd May 2011 4:50pm #UserID: 338 Posts: 908 View All Wayne's Edible Fruit Trees |
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Original Post was last edited: 2nd May 2011 5:27pm | |
Chris says... Wayne, you make the unintentional mistake of assuming your conditions are the conditions others deal with. Blacktown would be heavy clay, not sand. So the issue is more likely to be one of waterlogging and drainage, rather than retaining moisture. We have had one of the wettest months in a long while. Gypsum is unlikely to do anything at this late stage. Some fruit drop is normal. Many mandarins tend to be alternate bearing unless you thin them. But if the tree drops all it's fruit then it's ultimately due to stress of some kind, whether due to water or nutrient imbalance/defiency. From my armchair it does appear relatively healthy looking (above the root system). | About the Author Chris Sydney 2nd May 2011 10:06pm #UserID: 2281 Posts: 263 View All Chris 's Edible Fruit Trees |
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Original Post was last edited: 2nd May 2011 10:09pm | |
Wayne says... I understand this Chris and that being the case it is all the more reason to use gypsum , Kert is of the opinion that gypsum is good for clay soil only when in fact it will help control moisture content in other types of soil. Note that I say "fruit drop is OFTEN caused by soil going from wet to dry" not "always". These two people are talking about loosing all their fruit, not just a few. What are the soil conditions in Fremantle? Nobody else has offered a solution to this problem yet and I'm sure alternative remedies would be welcome, but these people need help and the opportunity to decide for themselves. Cheers | About the Author Wayne Mackay QLD 3rd May 2011 3:13am #UserID: 338 Posts: 908 View All Wayne's Edible Fruit Trees |
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Original Post was last edited: 3rd May 2011 3:42am | |
kert says... Do you suppose you can disagree, Wayne without being disagreeable. (And not delete my altogether muted response). There is no evidence for the use of gypsum for all soils . If you have such evidence then share it. In its absence I'll state again "gypsum is only of use as a cation exchange for sodic soils." (incidentally, cations have no resemlance to felines) | About the Author sydney 3rd May 2011 7:31am #UserID: 0 Posts: View All 's Edible Fruit Trees |
Chris says... My experience is with clay, but I would have thought in Freo, the addition of bentonite would be far more beneficial for holding soil moisture than gypsum. Even coir peat in the top inch of the soil. The idea of gypsum, a chalky powder, being used to control soil moisture, is not a factor in it's application. | About the Author Chris Sydney 3rd May 2011 8:22am #UserID: 2281 Posts: 263 View All Chris 's Edible Fruit Trees |
hawkypork says... At last, a subject that I can comment with authority. Fremantle is on limestone creating gutless, hydrophobic, alkaline, sandy soils. I dont think the there is a wet/dry thing going on because the mandarin has been getting spray retic every day. Dont think it is a fertiliser thing either because the tree has been getting quite a lot of fertiliser attention over the last year. The tree is healthy and the fruit is a good size. My orange tree has also had all year watering and plenty of fertiliser but a number of the fruit split. I would love an alternative theory rather than changes in soil moisture. Still can't complain lots of homegrown mandarins and oranges at the moment. | About the Author Fremantle 3rd May 2011 2:05pm #UserID: 0 Posts: View All 's Edible Fruit Trees |
amanda says... Hi Hawkypork - this link might help: http://www.agric.wa.gov.au/objtwr/imported_assets/content/hort/fn/pw/citrusloss.pdf And this one is one of my fave's: http://www.dpi.nsw.gov.au/agriculture/horticulture/citrus/management/nutrition/nutrition | About the Author amanda19 Gerladton. Mid West WA 3rd May 2011 4:50pm #UserID: 2309 Posts: 4607 View All amanda19's Edible Fruit Trees |
About the Author Fremantle 3rd May 2011 6:02pm #UserID: 0 Posts: View All 's Edible Fruit Trees |
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About the Author Ricktee Atherton Tablelands 31st March 2014 10:06am #UserID: 9728 Posts: 1 View All Ricktee's Edible Fruit Trees |
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About the Author yrt sydney 31st March 2014 10:23am #UserID: 8343 Posts: 86 View All yrt's Edible Fruit Trees |
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About the Author sternus1 Australia 31st March 2014 10:46am #UserID: 8314 Posts: 1318 View All sternus1's Edible Fruit Trees |
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About the Author Mike Tr Cairns 31st March 2014 11:08am #UserID: 8322 Posts: 614 View All Mike Tr's Edible Fruit Trees |
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About the Author Mike Tr Cairns 2nd April 2014 3:40pm #UserID: 8322 Posts: 614 View All Mike Tr's Edible Fruit Trees |
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