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Is organic gardening viable?
I have not read this book, but I have practiced organic gardening on a
suburban block with favourable results and I believe organic gardening is viable if approached in the correct manner. There may be some exceptions for using pesticides, especially on fruit trees with introduced pests that have no natural predators (I.e. That dam cherry slug that attacks my plums, pears and cherry tree) But otherwise, with careful planning and paying attention to 'past season' errors you should find pesticides are not really necessary. Mr Hopkins is accurate in saying a that large amounts of organic matter are required in the soil. i.e. compost, as Australian soil is generally of poor quality. We should not even double dig our soil , but build compost/raised beds where possible. Chemical fertilizers will not 'fix' the soil. Compost over time, with continued use, will improve soil quality. (if you crop rotate and minimise digging) But building compost I NOT hard to do and organic matter is not difficult to obtain.(everyone throws it out) Also you won't need 'heaps' of space. First you need to 1. Invest in a tree mulcher ($150 up) and possibly by a trailer (2nd hand in the trading post) 2. Locate a cheap and local 'manure' pit. I live in Victoria, outer eastern suburbs. There is a local horse track not too far from my house. I can collect a trailer load of horse manure for $5.00. 3. Make a compost heap. I won't go into the semantics of how to make a good compost. A good resource is 'The Rodale Book of Composting' Deborah I Martina and Crace Gershuny, Editors. Rodale Press, Emmaus, Pennsylvania. You can make 'moveable' compost beds. Try and make your compost 'hot' as it kills weed seeds. When the compost is finished make it a raised bed and plant and start another compost heap. I collect organic matter for about a month, picking up neighbours trees they have cut, my lawn clippings, weeds etc etc. (anything organic even newspaper) I then go and collect the manure and start up a seriously hot compost. SO that fixes up your 'soil' issue and now all you have to do is deal with the pests. P.S and if you have to buy soil, while it is slightly more expensive, choose mushroom mulch. It is worth the extra expense. You will have near compost quality soil and it will retain moisture more easily. To deal with pests in an organic manner takes some planning. And you will get pests all the same. Its the 'how much' damage they do that is the issue VS How much does the pesticide cost/what am I eating it for etc factor. So now you need a little bit of knowledge on pest behaviour. Pests find their food by either smell or sight. So you want to confuse them. There a many books on 'companion' planting, good pests/bad pests. Repelling pest plants etc etc that can assist with 'keeping' pests at bay. There is so much knowledge in fact that it can get confusing, and you may start thinking, 'Hey I will just SPRAY'. But I have found with a limited amount of knowledge that a few tricks work well. Don't plant the same vegetables all in a row. Its like a sitting target. The pests see/smell it SO EASILY. Especially the cabbages, cauliflowers, etc (the Brassica family) Garlic works well in most places as a repellent. Set up 'sacrifice Brassica's. The cabbage I plant these at the edge of the bed and they always gets decimated by pests. However, the other Brassica's are usually free to mostly free of snails/slugs. Introduce a pond and frogs into your backyard to catch the bugs. We eat anywhere between 20 to 80% of our own food during meals. Probably averaging 60% This is our 2nd summer crop. I am keeping an online diary of my garden ( nearly 2mth behind at present) www.jeack.com.au/~kirsty As to the taste test between organic VS non-organic VS home grown. I eat mostly organic vegetables (seasonal when possible except avocados my addiction) Sometimes, I will admit you don't notice a difference in the foods. And some can seen even 'better' as non-organic. Below are examples that do compare noticeably for me. Tomatoes non-organic = Pretty dam tasteless. No flavour and a strange flour like texture organic = Still pretty tasteless. Normal tomato texture. home grown = Fantastic. Peaches non-organic = From what I recall seemed ok organic = Alright, some had a slightly bitter aftertaste. Smaller in size than non-organic home grown = As big as the non-organic, very sweet, no bitter aftertaste Potatoes non-organic = Taste floury and weird organic = Taste wonderful home-grown = Taste as good as organic, easier to clean. Lettuce No difference between any, but is expensive. Home grown lose leaf's very easy to grow. Capsicum non-organic = Big and watery. Not much taste but twice the size of organic organic = Smaller in size, less watery. Slightly more flavour home grown = Never been very successful. In all for 'value' non-organic. But how much water has been used to justify that SIZE is my question. However, in saying the home grown tomato's are fantastic I did have some exceptions. These were the seeds that self sprouted from the organic vegetable scraps I fed to my chickens. They were perfect in shape, stayed on the kitchen bench 'ripening up for days longer than other 'variety's and tasted a lot less 'fantastic' than say the Tommy toes. The moral of this is. Even organics grow tomatoes for 'shelf life' and 'appearance's over flavour. Definably grow your own. "Ivan McDonagh" wrote in message 7.67... *** note the cross post *** Hi all I have just finished reading an online book "Chemicals, Humus, and The Soil" written by Donald P. Hopkins. This book is available through the agriculture library at http://www.soilandhealth.org. It seems to me that Mr Hopkins makes a very strong case in favour of using the fertilisers that are not permissible under the "rules" of organic gardening. Although Mr Hopkins has discussed this matter in the context of commercial farming it seems to me that as home growers we are also looking for best yield for least cost (direct and labour) and that the arguments he presents are mostly just as valid for home growers as for commercial. Mr Hopkins emphasises to a very great extent the need for large amounts of organic matter in the soil but is also convincing in his argument that the amounts of humus that are required to provide sufficient nutrients for the high density planting that both home and commercial growers favour is difficult for the home grower and expensive to the point of impossibility in the case of the commercial grower to obtain. I wonder if anyone else has read this book and can comment on the validity of the arguments put forward by Mr Hopkins. Also, are there any peer-reviewed studies regarding the "taste" of organic vs. non-organic produce (presumably these would be double blind trials) and the bio-availability of nutrients in organic vs. non-organic produce. Obviously, I would prefer at least abstracts to be available via the internet. Ivan. |
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