Conservation agriculture

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




by izentrop » 03/06/21, 23:44

The main lines of tomorrow's agriculture, which can only be understood with the dogmatic "off" mode
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Re: Conservation agriculture




by Christophe » 06/06/21, 00:23

In the same family, in addition to "pro":

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izentrop
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Re: Conservation agriculture




by izentrop » 06/06/21, 02:05

Christophe wrote:In the same family, in addition to "pro"
Why make hierarchies, more educational perhaps, but hey! it is the farmer who has his hands dirty.
As he also says, he comes from an agricultural background and he talks about it with humility, but sometimes he goes beyond his skills. His allusion to Bourguignon and glyphosate, blah! it does not bring anything constructive.

His speech is very interesting but too generalist. An agricultural engineer like Pascal Boivin accompanies his speech with statistics and graphs, it speaks to me more farming / agriculture l-de-conservation-t15919 630.html # p427676
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Re: Conservation agriculture




by Christophe » 06/06/21, 11:05

Tiens Janco also liked your video : Cheesy: : Cheesy: : Cheesy:

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izentrop
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Re: Conservation agriculture




by izentrop » 05/08/21, 22:50

The interest of the vegetation cover evident for carbon, less for the yield
In most cases, the yield of modalities with plant cover represents 102 to 103% of the modality in bare soil. Obviously, this average hides disparities with, regularly, beneficial effects of much higher… and sometimes lower cover. In fact, a cover destroyed too late can induce a reduced availability of water and nitrogen for the crop, and therefore negatively influence its potential. "

In the current state of knowledge of the institute, late destruction of plant cover is often synonymous with penalization of yield. This is why a real strategy for the destruction of plant cover must be put in place. This is also what we find with semi-permanent plant cover. If they are poorly regulated in the crop in place and their biomass exceeds 1 tMS / ha at wheat heading, for example, the cutlery reduces the potential of the crop.
It is clear that the cover must be destroyed for the culture to give its full potential, contrary to the claims of permaculture.
Thibaud Deschamps, engineer specializing in agronomy at Arvalis-Institut du Plant, notes that "1 tMS / ha of plant cover buried in the soil restores the latter about 400 kg / ha of carbon. Taking into account the humification coefficient of 28% commonly accepted, this means that 112 kg / ha of carbon are stored sustainably ".

He also points out to this effect that "tillage has only a fairly limited effect on carbon storage, all other things being equal." This means that the introduction of a cover will have a similar benefit on carbon storage, whether it is introduced into a system in plowing, in TCS or in soil conservation agriculture if the other production parameters are identical. Obviously, the climate and the type of soil strongly influence the capacity of a soil to store carbon. https://www.cultivar.fr/technique/linte ... -rendement
... contrary to what Claude Bourguignon claims for example
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Janic
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Re: Conservation agriculture




by Janic » 06/08/21, 09:32

izydit anyway
... contrary to what Claude Bourguignon claims for example
it is not what is said or claimed, but what happens in the field itself and therefore taking into account all the diversities that influence living plant products as animals! From time to time successes, at other times failures like everywhere!
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"We make science with facts, like making a house with stones: but an accumulation of facts is no more a science than a pile of stones is a house" Henri Poincaré
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Re: Conservation agriculture




by izentrop » 06/08/21, 09:47

It's confirmed, plant macerations help protect crops
The principle of maceration is to extract the active substances contained in a plant to spray them on the crop or on the soil. The plant species used in the preparation (nettle, comfrey, fern, alfalfa, horsetail, burdock, willow) naturally contain strains of local microorganisms. Under the action of these microorganisms, organic matter is subjected to fermentation, resulting in the production of a variety of molecules of interest that can be reused by crops (minerals, amino acids, enzymes, antioxidants).

With his local group, Stéphane has multiplied the tests in different pedoclimatic contexts in order to compare the effects of maceration on the productivity of cereals in comparison with chemical modalities. The synthesis of 25 field trials in soft wheat showed a level of protection equivalent to chemistry with macerations: 61,5 q / ha for the control modalities, 67 q / ha for the modalities with fungicides, 67,5 q / ha for the modalities with three applications of maceration and 68 q / ha for the modalities with fungicides + macerations.

At ground level, Stéphane noticed a structuring effect following the use of macerations, in particular on silty-flowing soils. By performing soil profiles on test plots to compare modalities with and without maceration, he was able to observe a significant difference in soil aeration and root exploration.

In the longer term, he observed a real boost in terms of organic matter gain. He noticed that in direct sowing without maceration, he gained about 0,1% organic matter per year. The first years when he generalized the use of macerations, he succeeded in multiply this number by three.

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Janic
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Re: Conservation agriculture




by Janic » 06/08/21, 09:51

in short, as Monsieur Jourdain was doing prose without knowing it, he does organic food without knowing it either!
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GuyGadeboisTheBack
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Re: Conservation agriculture




by GuyGadeboisTheBack » 06/08/21, 14:40

izentrop wrote:It's confirmed, plant macerations help protect crops

Izy discovers the benefits of biodynamics. It's extra, I would almost cry!
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izentrop
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Re: Conservation agriculture




by izentrop » 07/08/21, 01:05

Janic wrote: he does organic without knowing it
He knows ...
Stéphane Billotte is a farmer in Yonne in a field crop system. He has been practicing conservation agriculture for about fifteen years and decided to convert his farm to organic in 2018, by implementing direct seeding under permanent plant cover.

Why did he decide to go with such a system and how did he think about it to make it work? Stéphane reviews the history of the construction of his model which reconciles soil conservation agriculture and organic farming.
GuyGadeboisLeRetour wrote:Izy discovers the benefits of biodynamics.
Maybe I posted a bit quickly, I hadn't seen that he was organic, because in fact he didn't have much choice of method.

The study seems scientifically valid with the control without treatment ... we need to know more, because scientists had already looked into the method without finding any real effectiveness :?: https://www.jardiner-autrement.fr/wp-co ... tie-bd.pdf
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