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1+1=salade ?

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Related:  Végétal / Flora

Le sens de l'humus / Écologie, permaculture, agrologie, nutrition… Native Plants: Restoring to an Idea Let me tell you about the invasive plant that scares me more than all the others. It’s one that has infested over 80 million acres in the US, usually in virtual monocultures. It is a heavy feeder, depleting soil of nutrients. Everywhere it grows, the soil is badly eroded. The plant offers almost no wildlife habitat, and since it is wind pollinated, it does not provide nectar to insects. Wait, you say: these plants are deliberately spread by people; that’s different! Let me give another example of how our ideas dictate which species we’ll tolerate and which we won’t. In a similar vein, one of the rarest and most valued ecosystems in the Northwest are the native prairies, such as those found in the Willamette and other valleys. So I applaud and encourage efforts to preserve native prairie in the region—they are valuable as endangered species habitat, examples of cultural heritage, and a way of preserving planetary biological wisdom. Let’s look at some of the causes of species change.

Jardinons la planète | Philosophie, décroissance et agronomie Intelligence Verte Saving Native Wildlife with “Invasive” Plants There’s been a lively discussion on permaculturists’ occasional planting of introduced species known to naturalize (or, in loaded terms, invasive species) at this blog. Some there have disputed that exotics can play critical roles in habitat, and I posted the words below to show that removal of exotics can be very damaging to native wildlife: Here are hard data on introduced plants that have rapidly formed partnerships with native insects, from a paper, “Exotics as Host Plants of the California Butterfly Fauna,” by Sherri Graves and Arthur Shapiro, in Biological Conservation (2003) 110:413-433. It was sent to me by Mary McAllister, a SF blogger ( concerned about wholesale removal of healthy exotic trees from large swaths of rural SF-area parks. Other ecologists questioning the wisdom of natives-only policies are Mark Davis, Dov Sax, Erle Ellis, Matt Chew, and Peter Del Tredici, if you want to find papers by them. Dr Shapiro is an ecologist at UC-Davis.

l'arpent nourricier Intelligence Verte | Pour la sauvegarde de la biodiversité Invasive Plants in Permaculture A couple of months ago, I posted on this site an article that reviewed three garden shows, noting that the third of these, the Ecological Landscaping Association’s Annual Conference, gave its attendees a thought-provoking paradox. One of the event’s speakers discussed the vast and costly damage caused by Japanese knotweed in Great Britain, and another illustrated the nearly hopeless job of managing invasive plants on public lands in Massachusetts. Hardy kiwi: a big player in edible landscaping Kiwi escaped and on the loose in western Massachusetts Ironically, the closing keynote speaker, Ben Falk, touted a brand of gardening – generally termed permaculture – which, in contrast to its many sensible practices, also recommends using plants that can spread far and fast if left untended, disrupting regional ecosystems, i.e. plants that are generally called invasive. In response to my post, Mr. The ELA posted this lecture in their monthly newsletter, calling it a rebuttal to my piece.

Imago Le Jardin de Jenny / 2 astuces principales pour mon potager 21 juin 2013 | Auteur: Jenny Gloster « Cet article participe à un évènement inter-jardiniers organisé par Yannick HIREL du blog Au potager bio, le but étant de réunir des conseils, des astuces d’expert, d’amateur ou simplement de passionné de jardinage dans un seul et même e-book qui sera, par la suite, distribué gratuitement sur le web. J’aime beaucoup cette idée de Yannick d’accumuler un maximum d’astuces différentes provenant elles aussi d’un maximum de personnes et je suis flattée qu’il me demande ma participation. C’est par le partage de nos expériences qui est très enrichissant pour tout le monde. La première astuce que je propose est plus un principe de jardinage qu’une astuce. Astuce numéro 1 : Dans un jardin, de n’importe quel taille, faire pousser les herbes aromatiques en quantité et sans retenue. C’est ce qui est, pour moi, le plus important et intéressant dans un jardin pour de multiples raisons ; Les herbes aromatiques transforment et améliorent de nombreux plats.

Les légumes perpétuels - Le blog de permaculture.over-blog.fr Les légumes perpétuels sont des variétés de légumes généralement vivaces et rustiques : ils résistent aussi bien aux canicules de l'été qu'aux rigueurs de l'hiver. Elles survivent très bien dans leur milieu naturel, et donc ne nécessitent souvent aucun arrosage, désherbage, semis, labourage, butage ... - Oignon - Poireau - Choux - Céléri - Cerfeuil - Rhubarbe - Artichaut - Bette à tondre (Beta vulgaris var. cicla) - Chénopode Bon-Henri (Chenopodium bonus-henricus) - Chou perpétuel (Brassica oleracea) - Crambé maritime (Crambe maritima) - Cresson de jardin vivace (Barbarea verna) - Oseille épinard (Rumex patienta) - Pimprenelle (Sanguisorba minor) - Poireau perpétuel (Allium ampeloprasum) - Rhubarbe (Rheum rhaponticum) - Roquette vivace (Diploataxis tenuifolia) - Potimarron - Châtaignes - Panais - Crosne - Crosne du japon Le Chervis ombellifère C'est une plante vivace oubliée qui était pourtant présente dans tous les potager au moyen age. * Reproduction et bien d'autres ! Choux Tronchuda Taro

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