Conservation agriculture

Agriculture and soil. Pollution control, soil remediation, humus and new agricultural techniques.
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GuyGadebois
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Re: Conservation agriculture




by GuyGadebois » 15/03/20, 12:35

izentrop wrote:
GuyGadebois wrote:In the first case there is destruction by a chemical agent, in the other cases a use, a valorization of what nature has produced.
Sophism as old as the world

It is not a fallacy, it is a fact. With glyphosate we destroy, with this method we value. When we have nothing to say ... : roll:
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VetusLignum
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Re: Conservation agriculture




by VetusLignum » 16/03/20, 14:09

GuyGadebois wrote:
izentrop wrote:
GuyGadebois wrote:In the first case there is destruction by a chemical agent, in the other cases a use, a valorization of what nature has produced.
Sophism as old as the world

It is not a fallacy, it is a fact. With glyphosate we destroy, with this method we value. When we have nothing to say ... : roll:

Glyphosate is also used in the context of conservation agriculture on living canopy to "calm" the canopy (so that it does not dominate the main crop), without destroying it.
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Re: Conservation agriculture




by izentrop » 16/03/20, 15:44

VetusLignum wrote:Glyphosate is also used in the context of conservation agriculture on living canopy to "calm" the cover (so that it does not dominate the main culture), without destroying it.
Are you sure about that because that's how we create organisms resistant to a substance?
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VetusLignum
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Re: Conservation agriculture




by VetusLignum » 16/03/20, 15:56

izentrop wrote:
VetusLignum wrote:Glyphosate is also used in the context of conservation agriculture on living canopy to "calm" the cover (so that it does not dominate the main culture), without destroying it.
Are you sure about that because that's how we create organisms resistant to a substance?


Yes, for example:

The importance (and the difficulty) of controlling the regulation of the cover
In particular, the realization of the potential yield seems conditioned by the good control of the cover (alfalfa or sainfoin here). If the latter is properly destroyed before sowing the wheat, the risks of water and nitrogen competition are avoided. In order to maintain a permanent or semi-permanent living cover, in addition to calming the cover before sowing (glyphosate in non-organic) wheat, a sufficiently strong regulation and early in winter allows to avoid water stress and to obtain a positive effect on the nitrogen nutrition of wheat, in particular in post-flowering. In addition, maintaining a cover, even if it is not very developed, during cultivation would allow under Mediterranean conditions to limit evapotranspiration of the soil.
In organic production mode, the potential yield appears difficult to achieve due to a high deficit of nitrogen nutrition. In addition, the difficulty of effectively regulating cover without plowing generally increases the pressure on nitrogen and water resources and tends to have a downward impact on the percentage of achievement of potential yield. To maximize yields, sowing wheat in creeping cutlery (clover) or sowing in rows apart from mechanically regulated wheat (teeth, hoeing) in already planted cutlery appears as avenues for the future to explore. These innovations will require adaptations of machinery for effective regulation of cutlery. In organic, if the observation and the lines of work are now posed, the references to acquire are still numerous.
http://www.bio-provence.org/Semis-direc ... etteurs-en


For me, we create resistance when one part of the plants dies and the other survives. But if all the plants survive, I don't think that risk exists.

To listen again:
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Did67
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Re: Conservation agriculture




by Did67 » 16/03/20, 17:50

VetusLignum wrote:
For me, we create resistance when one part of the plants dies and the other survives. But if all the plants survive, I don't think that risk exists.



There is especially resistance in the case of antibiotics (for example), linked to the considerable multiplication rate of microorganisms, their extremely short lifespan and their very simple genetics (a single strand of DNA or RNA). Higher organisms have two strands of DNA, and correct the "typographical errors" of mutations. Their evolution plays more on recombinations - even if they also need mutations for there to be new characters!
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Re: Conservation agriculture




by izentrop » 16/03/20, 19:37

Did67 wrote:
VetusLignum wrote:For me, we create resistance when one part of the plants dies and the other survives. But if all the plants survive, I don't think that risk exists.
There is especially resistance in the case of antibiotics (for example), linked to the considerable multiplication rate of microorganisms, their extremely short lifespan and their very simple genetics (a single strand of DNA or RNA). Higher organisms have two strands of DNA, and correct the "typographical errors" of mutations. Their evolution plays more on recombinations - even if they also need mutations for there to be new characters!
plants mutate less than bacteria, farmers know that the means of control must be varied. The English had forgotten it a little
The United Kingdom is subjected, throughout its territory, to the pressure of the resistant vulpin. The costs of weeding soar and the price of land suffers. While the evolution of French structures and practices seems to bring them closer to those of our neighbors across the Channel, Fabien Massot, national technical expert in cereal herbicides at Syngenta, calls for vigilance in terms of herbicide uses and gives the keys so as not to get to the same point.

15 to 20% of the cereal sole faces significant resistance problems and farmers use drastic methods. They lengthen the rotation with a new crop in order to use other herbicidal modes of action, or even with a species of spring to, in addition, break the weed cycles. They make false sowing or reintroduce plowing, postpone their sowing dates, or adopt a weeding program with one or two passes in the fall. https://www.terre-net.fr/observatoire-t ... 23855.html
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VetusLignum
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Re: Conservation agriculture




by VetusLignum » 08/04/20, 13:15

Konrad Schreiber tells us how to weed without hoe and Roundup. This video is not to be missed, it is a mine of new ideas.

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izentrop
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Re: Conservation agriculture




by izentrop » 08/04/20, 13:54

p.tain you typed almost 7 hours :?: : Shock:
You can summarize :?: : Wink:

Otherwise even in official research we are interested in living soil:
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VetusLignum
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Re: Conservation agriculture




by VetusLignum » 08/04/20, 14:00

izentrop wrote:p.tain you typed almost 7 hours :?: : Shock:

Yes, and I think I'm going to retype them a second time, it's so rich.
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Moindreffor
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Re: Conservation agriculture




by Moindreffor » 08/04/20, 15:53

from the start, "THE" book for Adrien : Mrgreen:
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