Talk:Sustainable agriculture

From Wikipedia, the free encyclopedia

You have new messages (last change).
This Sustainability-related article is part of WikiProject Energy development, an attempt to build a comprehensive presentation of the issues related to energy development on Wikipedia. If you would like to participate, you can choose to edit the article attached to this page, or visit the project page, where you can join the project and help it bring clarity to the important and wide ranging issues of Sustainable development and Energy development.



I'm not sure if the Miscellaneous Information, which I've placed in a category, is necessary, because it seems to be a bit of info that is disconnected and rather obscure. What practical application does it have to our lives, for example.

I'm considering deleting the Miscellaneous Information, but I'm awaiting someone else's response as to how to clean up this text.

-Luxdormiens

I agree that this section doesn't add much to the article. I think that anything worth retaining should be incorporated somewhere else. Much of it can be jetisoned IMO. Sunray 06:11, 2005 Mar 1 (UTC)

Putting the info I deleted here. Maybe someone else will think this is useful and find a way to make it relevant to Sustainable Agriculture:

The byproducts from the crops are either fed to the livestock, used as bedding or composted with the excreta of livestock and humans, and are tended for two or more years to allow the destruction of soil born disease causing pathogens. They then become a soil amendment available to add biomass to marginal soils, making them more fertile.
Consider a single crop such as Canola, an oilseed bred for human consumption. The oilseed is mechanically expressed and can be used, with simple processing, as a biodiesel to power the processing plant. The byproducts of combustion: heat, motive power and nitrogen oxides can be used for process heat to express the oil, mechanical energy to process the seed, and as a compost amendment as part of the nitrogen cycle (this is an area for further research).
The meal can be used as a high protein source for animal feed. Suggested uses are for high conversion rate meat livestock such as chicken and rabbit. However, Mad-Cow Disease presents an example of the danger of using meat to feed herbivores. The disease, usually found in sheep, was contracted by cows, and later spread to humans.
The canola crop requires a crop rotation cycle of at least four years, with more being considered better. A grain crop is suggested by agonomists as the next crop to be grown in that field.
Disease control is affected by the use of rotation patterns.
Notice to this point, that the entire cycle does not incur extensive transport costs, save that of soil amendments and initial startup capital costs.
The current trend to separate the rural and urban activities is based on cheap oil. Use of petrochemicals as a fuel source, however, adds to the emission of greenhouse gases, which has been determined as causing climate change and influencing weather patterns negatively.

Lux March 2, 2:00 (UTC)

Contents

[edit] Chocolate link

The about chocolate link on this page seems rather out of place. Should it be removed?

I couldn't find any connection in the link to sustainable agriculture, so I removed it. Sunray 06:33, 2005 Mar 15 (UTC)
Yeah, I thought it was unrelated, but I want to give it some citations. Lux 03:58, 2005 Mar 19 (UTC)

[edit] Ecocities and Soil Food Web

I've created a stub for the soil food web, but I'm thinking that it should be redirected to the food chain, unless someone believes that the soil food web deserves a deeper explanation, such as the relationship between organisms like the nematodes, plants, mycorrhizae, etc.

In that case, a separate article could be created for the marine food web between phytoplanktons, whales, and other marine animals.

The other "stub" I've created is the ecocities, but I've gone through a lengthy explanation, so I don't think it's a stub.

The Ecocities article has some bias I unintentionally create, especially in the "Urban Elitism" section but it's more that I want to include politics and policies into the article, rather than simply describe what ecocities are intended for.

I've redirected Garden Cities and Ecocity to the Ecocities section, which I found from the Smart Growth article.

--lux 03:18, 11 Apr 2005 (UTC)


The new land / rain forest issue is quite important, but does it belong in the first paragraph? If so, I will modify to note that any decrease in yield per acre can create a demand for more land, whether this decrease is due to degradation of soil quality (e.g., from unsustainable conventional practices) OR from switching to methods that are more sustainable in the long run but produce less yield. This is a complex issue. See Global Change Biology 11:1-12 and this book "Agricultural technologies and tropical deforestration".

-- I agree, I think the first paragraph should be on what sustainable ag is, rather than what it is not. --Pfafrich 01:03, 6 January 2006 (UTC)

Yeah, I was wondering whether it was appropriate to put in the rain forest issue. I've thought of Descriptions as trying to summarize the entire article rather than as actually describing sustainable agriculture. If the article can have an extra section on destruction of rainforest as another example of unsustainable agriculture already covered, like inorganic pesticides, mono-species cultivation, etc. then I will agree with that. --lux 04:50, 6 January 2006 (UTC)

-- OK, moved rainforest text to lew section on off-farm impacts. Not all off-farm impacts prevent perpetual production by a farm, but they are still a concern. Symbiont

Reorganized description to distinguish between two quite different issues: effects of farming practices on soil productivity (e.g., erosion) vs. long-term availability of inputs. Rather than claiming it's possible to farm without using ANY nonrenewable resources (iron hoes, as an extreme example) rewrote to say sustainable agriculture attempts to minimize such use. Note that farms only use a few percent of US energy use (including energy cost of fertilizer production), so resource scarcity will affect the whole economy, not just agriculture. Deleted destruction of rainforest from resource section, since it doesn't fit there and is covered under off-farm effects. Also deleted vague comment that making fertilizer using hydrogen from electrolysis powered by windmills would "invariably" create problems. Without an explanation of those problems (perhaps a link), the comment doesn't add anything. I have read hundreds of scientific articles on intercropping, but have never seen a comparison of salt accumulation in monocropping versus polyculture. Salt accumulation generally results from improper irrigation practices. If someone wants to restore the claim that monoculture causes salt accumulation, please include an appropriate citation.

Ford Denison

[edit] References?

there is something in the text it is not clear, for that reason i am removing it. if someone knows what this means, please put it back but in a more understandable way: (what i'm removing is what is in bold)

Monoculture, a method of growing only one crop at a time in a given field, is a very widespread practice, but there are questions about its sustainability, especially if the same crop is grown every year. Growing a mixture of crops (polyculture) sometimes reduces disease or pest problems (Nature 406:718, Environ. Entomol. 12:625) but polyculture has rarely, if ever, been compared to the more widespread practice of growing different crops in successive years crop rotation with the same overall crop diversity. For example, how does growing a corn-bean mixture every year compare with growing corn and bean in alternate years? Cropping systems that include a variety of crops (polyculture and/or rotation) may also use replenish nitrogen (if legumes are included) and may also use resources such as sunlight, water, or nutrients more efficiently (Field Crops Res. 34:239).

thanks, --Cacuija (my talk) 19:13, 20 October 2006 (UTC)

[edit] Suggested merge

I've suggested that Locavore might be a good candidate to merge into this article. Please outline any concerns or objections here. Seraphimblade 23:41, 5 November 2006 (UTC)

I'm against this merge. "Locavore" describes a person adhering to a specific diet, and I'm not sure I see the connection to sustainable agriculture. This seems like a pretty new concept. If it catches on, there's bound to be plenty to write on it - although the article should then be moved to the inevitable, but as yet Google-scarce, "locavorism". — Itai (talk) 16:20, 25 November 2006 (UTC)

[edit] Request for "citations needed"

In view of the opinions aired in this article which are generally nothing more than an environmentalist dreamworld, I will do some heavy editing in a week's time unless the marked sentences are not backed up with some serious facts.

Tomcrisp7 14:53, 15 November 2006 (UTC)

Retrieved from "http://en.wikipedia.org../../../s/u/s/Talk%7ESustainable_agriculture_cb83.html"