lazy gardener in Loire Atlantique

[Did67]

The idea is that in living soil, certain toxic substances are quickly degraded, and become harmless.

This is undoubtedly true for many substances.

But we know that others are also very resistant - see DDT at the time

There are still some "brush cutters" which must be strong! The limits of approvals based on LD50, side effects on biodiversity ... So we can have a very low labile, low toxicity herbicide molecule, but which will still have an effect after spreading the compost! Without being "very harmful" from an ecological point of view ... Just annoying in the vegetable garden!

[Did67]

Or thistles

Yes, yes ... I used nettle as an example. But thistles, rumex, brambles, etc ... There are a lot of plants that can annoy a farmer in his meadow. Some umbellifers too. Or even dandelions ... Especially when he clears meadows that have been abandoned for a few years ... 15 days later, and the nettles are again 50 cm high!

So for those whose ecological awareness is very limited, weedkillers are tedious and inexpensive (all the more so as to discriminate between "monoctyledons" that we want to keep and "dicots" that we are going to remove - even if the clovers pass through them. also) ... Almost magic!

[VetusLignum]

The idea is that in living soil, certain toxic substances are quickly degraded, and become harmless.

This is undoubtedly true for many substances.

But we know that others are also very resistant - see DDT at the time

There are still some "brush cutters" which must be strong! The limits of approvals based on LD50, side effects on biodiversity ... So we can have a very low labile, low toxicity herbicide molecule, but which will still have an effect after spreading the compost! Without being "very harmful" from an ecological point of view ... Just annoying in the vegetable garden!

Yes, each molecule is different.
But today, we would need to know much more precisely what, in living soil, degrades (or not), and in how long.

Or thistles

Yes, yes ... I used nettle as an example. But thistles, rumex, brambles, etc ... There are a lot of plants that can annoy a farmer in his meadow. Some umbellifers too. Or even dandelions ... Especially when he clears meadows that have been abandoned for a few years ... 15 days later, and the nettles are again 50 cm high!

So for those whose ecological awareness is very limited, weedkillers are tedious and inexpensive (all the more so as to discriminate between "monoctyledons" that we want to keep and "dicots" that we are going to remove - even if the clovers pass through them. also) ... Almost magic!

Even with unlimited ecological awareness, it is difficult to do this work manually.

Note that there are also Jacob's groundsel which can be boring.

[Yool]

Or thistles

Yes, yes ... I used nettle as an example. But thistles, rumex, brambles, etc ... There are a lot of plants that can annoy a farmer in his meadow. Some umbellifers too. Or even dandelions ... Especially when he clears meadows that have been abandoned for a few years ... 15 days later, and the nettles are again 50 cm high!

So for those whose ecological awareness is very limited, weedkillers are tedious and inexpensive (all the more so as to discriminate between "monoctyledons" that we want to keep and "dicots" that we are going to remove - even if the clovers pass through them. also) ... Almost magic!

I read something I do not remember or which spoke of the ease for the rumpus to establish themselves on overgrazed meadows, with ground compaction phenomena. These rumices, can cause trouble in animals if they are overconsumed.

[phil53]

Regarding DDT, banned since 1971 on former market garden land that had been fallow for more than 10 years, there are still traces of the components resulting from the degradation of DDT.

[Did67]

After, the traces, you have to be wary. Analysis techniques are evolving so much that we find traces of almost all pesticides almost everywhere. In the air we breathe. In the ice of the poles. In the Himalayas ... And we can make beautiful "green" slogans there

As we find traces of EPO in the hair of a cyclist. Forcing Pantani, and many others, to cut their hair, at the risk of sunburn in the climbing of the Alpes d'Huez ...

[Did67]

Yes, each molecule is different.
But today, we would need to know much more precisely what, in living soil, degrades (or not), and in how long.

We know almost nothing about the "cocktail" effects of food additives or drugs or drugs crossed with additives ... So what becomes in the soil - or the compost - all the molecules that we balance ... We a few tip of the iceberg! At most. And who is going to pay for it? Public research: cadaver (as we say so nicely in Africa). And private research, you can run!

When you see - what a brilliant revealer, this Covid - that France, homeland of Pasteur but also of Mérieux, is out in the race for vaccines !!! And that our "big Pharma" to us, Sanofi, is all rikiki. Dropped! Big pharma with three balls - including one hole!

[Well, by the way: the Covid has admirably highlighted another lure: young people, so hyperconnected, so "connected", so "social networks" are depressed ... Depressed because they feel alone !!! ?? ? Ah the great deal. The idiots! They thought they were modern ???]

[Moindreffor]

After, the traces, you have to be wary. Analysis techniques are evolving so much that we find traces of almost all pesticides almost everywhere. In the air we breathe. In the ice of the poles. In the Himalayas ... And we can make beautiful "green" slogans there

As we find traces of EPO in the hair of a cyclist. Forcing Pantani, and many others, to cut their hair, at the risk of sunburn in the climbing of the Alpes d'Huez ...

yes, see the DNA tests, non-existent not so long ago, stammering, then efficient we clear or find the culprits years later and now we do group analyzes and robot portraits, science is progressing

So we are refining the detections more and more, and yesterday's trace is no longer that of today, 10 years ago I had my blood test results after 3 weeks, now during the day and the basic thresholds have also changed,

[Did67]

This is a good thing, but we just have to not be fooled by statements like "we find traces of this in 4 / 5ths of children in such school".

[Moindreffor]

This is a good thing, but we just have to not be fooled by statements like "we find traces of this in 4 / 5ths of children in such school".

if we look for the lack of vitamin D in someone we will always find a lack ..., bad threshold, lack of real knowledge, but we give everyone ampoules, because we are not looking for calcium fixation, bone density, just vitamin D

the problem is actually that we make the traces speak, Beaujolais Nouveau with a banana taste with your rates lower than those of the detection of our taste buds, but the machine says it and a machine is not mistaken, and if she says it naturally, we can feel this famous banana taste ...

the ecologists are against chemistry but to denounce it they use the point of chemical analysis ...

we use prehistoric waters to smooth hard disks almost to the atom, so finding traces we know how to do