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Subject:
From:
Amir Kassam <[log in to unmask]>
Reply To:
Amir Kassam <[log in to unmask]>
Date:
Sat, 30 Dec 2017 18:23:56 +0000
Content-Type:
multipart/mixed
Parts/Attachments:
*Global CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE*
*for sustainable production intensification and land management*
Dear Subscribers,

Please see herebelow a message from Professor John Baker of Baker
No-Tillage Limited in New Zealand regarding studies done by Landcare
Research in New Zealand in 2002 on effects of glyphosate on soil biota.

The message from Jeff Esdaile to which John Baker makes reference to is
threaded further down.


*Amir Kassam Moderator*
e-mail: [log in to unmask]
URL: www.fao.org/ag/ca
---------- Forwarded message ----------
From: John Baker <[log in to unmask]>
Date: Thu, Dec 28, 2017 at 11:31 PM
Subject: Glyphosate's effect on biota
To: Amir Kassam <[log in to unmask]>
Cc: "Jeff Esdaile ([log in to unmask])" <[log in to unmask]>, Craig Ross <
[log in to unmask]>


Hi Amir

Jeff Esdaile’s recent reference to the effects of glyphosate on soil biota
reminds me that one of the most definitive studies in that regard was done
by Landcare Research in New Zealand in 2002. Landcare Research is a Crown
Research Institutes, which is primarily funded by the NZ Government.

I apologise for not forwarding this information earlier, especially since
the no-tilled soil studied was on my own property and had had 18
consecutive years of double cropping by Cross Slot low-disturbance
no-tillage including glyphosate application at 3 litres per hectare with
each drilling. The double cropping rotation involved 2-years of summer peas
for the freezer followed by a winter forage crop that fed lambs and then
2-years of summer barley for grain followed again by the winter forage
crop.

At the time, this was the longest consecutively Cross Slot drilled soil in
New Zealand and Landcare research wanted to see what long-term effects 36
consecutive Cross Slot no-tillage events had had on soil health.

At the time (1984 -2002) it was assumed that 36 consecutive application of
glyphosate at normal application rates would have had an insignificant
effect on the soil. So no specific attempt was made to isolate possible
glyphosate effects from drill effects. But the results reported in this
study show that neither the 36 consecutive Cross Slot no-tillage events nor
the 36 consecutive applications of glyphosate had had a major negative
effect on soil health anyway.

Landcare Research measured a wide range of soil health indicators including
effects on biota and the results were compared with (a) an 18-year
permanent pasture field alongside on the same soil type that had had no
soil disturbance at all nor glyphosate application, and (b) a similar soil
close by that had had 16 years of single cropping (maize for grain which,
in NZ, is in the ground for 6-7 months) using conventional tillage with no
glyphosate application and was then allowed to fallow until the next maize
crop was sown.

Indeed, the tillage effect appeared to be much more negative than the
combined Cross Slot no-tillage and glyphosate effect.

I have attached the full paper, which is self-explanatory and seems to me
to dispel any “evidence” that glyphosate has a negative effect on biota.

Kind regards, John  Baker



Dr C John Baker, ONZM

Chief Executive Officer & Chairman

Baker No-Tillage Limited

P.O. Box 181

Feilding 4740

New Zealand

Ph. +64 6 323 1119 <+64%206-323%201119> (d.d. extn. 801)

Cell. +64 21 715 205 <+64%2021%20715%20205>





[image: CrossSlot_CMYKonWhite_2012_50px] <http://www.crossslot.com/>



*Securing Global Food Production*



[image: Twitter Logo 29px] <https://twitter.com/CrossSlot>       [image:
cid:image003.jpg@01D20763.A30C1340]
<https://www.linkedin.com/company/15081647>       [image: Facebook Logo
29px] <https://www.facebook.com/CrossSlot>       [image: YouTube Logo 29px]
<https://www.youtube.com/results?search_query=CrossSlot>



*www.CrossSlot.com <http://www.CrossSlot.com>*


-------- Forwarded Message --------
Subject:  Glyphosate
Date:  Fri, 29 Dec 2017 07:27:36 +1100
From:  R J Esdaile <[log in to unmask]> <[log in to unmask]>
To:  [log in to unmask], (Hon) David Brownhill
<[log in to unmask]> <[log in to unmask]>, Gordon Brownhill
<[log in to unmask]> <[log in to unmask]>, Jon wilkinson
<[log in to unmask]> <[log in to unmask]>, Robert Freebairn
<[log in to unmask]> <[log in to unmask]>, John Kneipp
<[log in to unmask]> <[log in to unmask]>, Paul DPI) Nash
<[log in to unmask]> <[log in to unmask]>, Warwick Felton
<[log in to unmask]> <[log in to unmask]>, Greg &
Shirley Ticehurst <[log in to unmask]> <[log in to unmask]>, Tony
Fischer <[log in to unmask]> <[log in to unmask]>, John (cross slot)
Baker <[log in to unmask]> <[log in to unmask]>, Bill Crabtree
<[log in to unmask]> <[log in to unmask]>
All,

FYI. Check recent article as in the link.

https://www.no-tillfarmer.com/articles/7169-is-glyphosate-
harming-your-no-tilled-soils?utm_source=omail&utm_medium=
email&utm_campaign=dnt&utm_content=ntf&ajs_uid=7687B5281356G8R

This seems to me to be an unbiased article from "No Till Farmer" magazine
on the possible long term effects of glyphosate on soil biota

I guess you have your own opinion on the content. After reading the
article, in my opinion an  intelligent rotation with species such as
sorghum may significantly assist.

Please pass on to others who you think may be interested.

Kind regards,

JEFF ESDAILE

-- 
R JEFF ESDAILE
Agricultural Consultant,
3 Somerset Place,
Scone NSW 2337
Australia.
Ph. 61-2-6545-1407
Email: [log in to unmask]
Alt email: [log in to unmask]

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