Cover Crops Provide Much More than Just CoverRay Weil
This presentation was the Keynote address for the Innovative Farmers of Ontario (Canada) in February 2014. Some slides may not work as well as intended without their animations.
Regenerative Agriculture as a Farming SolutionNelCoetzee
By: Jay Fuhrer. Rebuilding and maintaining life in the soil is directly linked to the longevity and reliability of our future agriculture; recognizing plants, animals, and soils evolved together over geological time
Cover Crops Provide Much More than Just CoverRay Weil
This presentation was the Keynote address for the Innovative Farmers of Ontario (Canada) in February 2014. Some slides may not work as well as intended without their animations.
Regenerative Agriculture as a Farming SolutionNelCoetzee
By: Jay Fuhrer. Rebuilding and maintaining life in the soil is directly linked to the longevity and reliability of our future agriculture; recognizing plants, animals, and soils evolved together over geological time
A combination of biotechnology and nanotechnology has the potential to revolutionize agricultural systems and provide solutions for current and future problems. These include the development and use of smart fertilizers with controlled nutrient release, together with bioformulations based on bacteria or enzymes.
Diagnosis and Recommendation Integrated System is a new approach to interpreting leaf or plant analysis and a comprehensive system which identifies all the nutritional factors limiting crop production and increases the chances of obtaining high crop yields by improving fertilizer recommendations.
Physiological limits in crop productionsusmitadas71
The physiological factors limiting yield are those that determine how efficiently crops convert the limited resources of carbon dioxide & light into carbohydrates & how much of these carbohydrates moves into storage organs that form useful part of the crop.
Soil Health definition and relationship to soil biology
Characteristics of healthy soil
Assessment of soil health
Framework for evaluating soil health
Indicators
Types of indicators
Biological indicators
Role of biological indicators
Why do growers see mite populations soar as temperatures get higher? In this webinar, John Kempf describes what causes mite populations to explode and how to control mites with nutritional inputs. He will illustrate why high temperatures cause plant ammonium levels to increase and describe how these high levels influence mite populations. If you’ve experienced mite issues, whether from high temperatures or other causes, this webinar will provide actionable information on:
• The conditions that are vulnerable to exploding mite populations
• The causes of these conditions
• The nutritional inputs that can reverse mite infestations
The video presentation can be viewed at https://youtu.be/i8dk4l97Q30
A combination of biotechnology and nanotechnology has the potential to revolutionize agricultural systems and provide solutions for current and future problems. These include the development and use of smart fertilizers with controlled nutrient release, together with bioformulations based on bacteria or enzymes.
Diagnosis and Recommendation Integrated System is a new approach to interpreting leaf or plant analysis and a comprehensive system which identifies all the nutritional factors limiting crop production and increases the chances of obtaining high crop yields by improving fertilizer recommendations.
Physiological limits in crop productionsusmitadas71
The physiological factors limiting yield are those that determine how efficiently crops convert the limited resources of carbon dioxide & light into carbohydrates & how much of these carbohydrates moves into storage organs that form useful part of the crop.
Soil Health definition and relationship to soil biology
Characteristics of healthy soil
Assessment of soil health
Framework for evaluating soil health
Indicators
Types of indicators
Biological indicators
Role of biological indicators
Why do growers see mite populations soar as temperatures get higher? In this webinar, John Kempf describes what causes mite populations to explode and how to control mites with nutritional inputs. He will illustrate why high temperatures cause plant ammonium levels to increase and describe how these high levels influence mite populations. If you’ve experienced mite issues, whether from high temperatures or other causes, this webinar will provide actionable information on:
• The conditions that are vulnerable to exploding mite populations
• The causes of these conditions
• The nutritional inputs that can reverse mite infestations
The video presentation can be viewed at https://youtu.be/i8dk4l97Q30
potato productiona nd factors affecting its productivityaddisalem9
Potato is originated in the high Andes of south America and was first cultivated approximately Lake Titicaca near the present border of Peru and Bolivia.
In the term of quantity produced and consumed worldwide, potato is the most important vegetable crop.
It is one of the most important food crops in the world, in volume of world crop production it ranks fourth following by wheat, rice and maize.Potato is one of the most important cultivated members of the family Solanaceae. A dicotyledonous, herbaceous perennial plant is treating as annual.
It has pinnate compound pattern alternate leaves on its above ground stem and specialized underground storage stems or tubers.
Potato has an indeterminate growth pattern and produces a fibrous system of adventitious root system, which develops just above the nodes on underground portion the stem.- Potato is one of the worlds major staple food crops producing high yields of nutritionally valuable food in the form of tubers, which is an excellent source of carbohydrates protein and vitamins.
- It is also an important crop towards food security, although it is a minor crop in the world trade.
- Is a good source of vitamins B1, B3 and B6 minerals such as K, P and Mg.- Potato is one of the worlds major staple food crops producing high yields of nutritionally valuable food in the form of tubers, which is an excellent source of carbohydrates protein and vitamins.
- It is also an important crop towards food security, although it is a minor crop in the world trade.
- Is a good source of vitamins B1, B3 and B6 minerals such as K, P and Mg. Biotic and Abiotic factors that can affect the growth, yield and tuber quality of potato.
Biotic factor :- refers to living organism that can have a direct and indirect impact on potato production.
Abiotic factor :- refers to non living environmental factors that can affect potato production.Potatoes grow best in well drained, sandy soil. A poorly drained soil is more likely to produce diseased tubers.
Potatoes which have been grown under basin irrigation practices were more vigorous than plants from furrow irrigation. This may be due to the fact that plants over the furrow ridges relatively bears more roots than shoots in search of soil moisture as more proportion of the applied water is deep percolated (FAO, 1985) .
Potassium influences the transport of nutrients and the movement of carbohydrates from the leaf of the tuber.
Different levels of nutrient supply may lead to different seed tuber yields. This is because seed tuber yield is determined not only by total tuber yield but also by tuber size category and tuber numbers. Improved potato varieties that have been recently released in Ethiopia may differ in nutrient efficiency, and could have different optima of balanced macro-nutrient requirements for maximum yield of good quality seed tubers.(Burga et al., 2013).Late blight. This disease is caused by the oomycete patho
Rice stress related gene expression analysis 2019RonHazarika
The study revealed that the proteins seem similar in structure but functionally they are much more diverse. This analysis can help to identify the molecular basis of phenotypic differences and select gene expression targets for in-depth study. The regulation of gene expression in plants, as in other higher eukaryotes, is a subject of daunting complexity.
Presenter: Norman Uphoff
The Cornell Agroforestry Working Group/ The Management of Organic Inputs in Soils of the Tropics Group (CAWG/MOIST) Seminar Series 2003, USA
Effect of Stress on Selected Edible PlantsYogeshIJTSRD
Two edible plants Lablab purpureus of the Fabaceae and Cucumis sativus of the Cucurbitaceae have been studied by stress analysis. Salt stress is caused by excessive accumulation of salt in the soil, either directly because of salinization, or indirectly because of water loss. As a consequence, the soil water potential progressively decreases and eventually stopping the gradient of water flow from roots region to upper most part shoot and leaf . In this paper, both edible plant seeds are allowed to different stress conditions salt, dark and sugar . The different concentration of salt such as 10ppm, 25ppm, 50ppm, dark condition and 10ppm of sugar solution are used. Both plant seeds measurement was taken at the interval of 10 days. Generally first germination was seen within 3 days in a pot after sowing of seeds. In both plant, control pots showed normal growth of seeds. Treatments are shown the variation. Stress analysis is further confirmed by proline analysis. This paper revealed that stress analysis of entirely two different family members such as Lablab purpureus and Cucumis sativus M. Dhanasekaran | G. S. Nandhakumar | R. Thayalan "Effect of Stress on Selected Edible Plants" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd41314.pdf Paper URL: https://www.ijtsrd.combiological-science/botany/41314/effect-of-stress-on-selected-edible-plants/m-dhanasekaran
Similar to Maximizing crop root growth in no-till systems (20)
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Delivering Micro-Credentials in Technical and Vocational Education and TrainingAG2 Design
Explore how micro-credentials are transforming Technical and Vocational Education and Training (TVET) with this comprehensive slide deck. Discover what micro-credentials are, their importance in TVET, the advantages they offer, and the insights from industry experts. Additionally, learn about the top software applications available for creating and managing micro-credentials. This presentation also includes valuable resources and a discussion on the future of these specialised certifications.
For more detailed information on delivering micro-credentials in TVET, visit this https://tvettrainer.com/delivering-micro-credentials-in-tvet/
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
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This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
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A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
2. Chemical seed treatments,
deep rippers, tile and insect
resistant genetics are powerful
technologies that can enhance
root growth but are not the
focus of this presentation.
The goal of this presentation is
to explore underappreciated
aspects of the science and
management of roots with a
focus on opportunities in NT
farming systems.
3. Corn yields have
tripled during my
life but have my
soils improved?
Which soil is a better environment for
root growth and function?
4. WHY??
More questions than
answers for many fields
Variation in Variation in
inherent soil dynamic soil
properties? properties?
Soil variability
interacting with
genetics, weather,
and cultural practices
5.
6. of variability in root growth and function
Root performance = Genetics x Environment
7.
8. The decade since the publication
of the third edition of this volume
has been an era of great progress
in biology in general and the plant
sciences in particular. This is
especially true with the
advancements brought on by the
sequencing of whole genomes of
model organisms and the
development of “genomic"
techniques.
This fourth edition of Plant Roots:
The Hidden Half reflects these
developments that have
transformed not only the field of
biology, but also the many facets
of root science.
9. STEEP, CHEAP AND DEEP
Breeding goals proposed by
Dr. Jonathan Lynch
RCA = Root cortical aerenchyma
10. Root phenes associated with genotypic differences in
adaptation to low phosphorus (from Lynch, 2007).
Lynch J P Plant Physiol. 2011;156:1041-1049
11. Three primary factors affecting flooding tolerance in plants have been reported:
(1) the ability to grow adventitious roots
at the soil surface during flooding; (2) the capacity to form root aerenchyma;
and (3) tolerance to toxins (e.g., Fe 2+, H2S) under reducing soil conditions. By
analyzing these components separately, it could be possible to perform
selections for genotypes exhibiting varying degrees of flooding tolerance.
12. Some GM traits may have
broader than expected impacts
Despite minimal corn rootworm feeding pressure on
roots, the Bt hybrids produced an average of nearly 1.1
Mg ha−1 more grain than their RR2 counterparts. In the
comparison of DKC61-72 RR2 and DKC61-69 VT3, Bt
protection promoted increased grain yield at low N (+1.0
Mg ha−1; P ≤ 0.01) and a 31% greater response to
fertilizer N.
13. Increased efficacy of symbiotic N fixation can be achieved
by selecting not only the best host genotypes but by selecting the
best combination of host genotype and nodule bacteria.
…targeted efforts to breed genotypes for improved N fixation and
mycorrhizal symbiosis will bring benefits in increased yields of
crops under a wide range of environmental conditions and will
contribute toward sustainability of agricultural ecosystems in
which soil-plant-microbe interactions will be better exploited.
15. The big guys have
recently become very
interested in biological
products
16.
17.
18.
19. The infusion of BIG money will create
powerful new products but is likely to
narrow the range of strategies
20. Opening the black box
Nutrient cycling
Bio-control of
pests and
pathogens
Decomposition
soil structure formation
and stabilization
21. Opening the black box
Nutrient cycling
Research that reveals
the secrets of soil
processes will lead to
new products but will
not eliminate the
need for cultural
practices
22. When are biological products most likely
to result in Return On Investment?
http://www.scivit.de/blog/wp-content/uploads/2010/11/Slide124.jpg
24. VOTiVO contains a naturally occurring soil rhizobacteria (Bacillus firmus), that live
and grow on crop root systems. The bacteria creating a biofilm that becomes a living
barrier limiting the number of receptor sites which could otherwise be occupied by
plant pathogens such as nematodes. Nematodes use gaseous and solid exudates from
the root as means to detect a root’s proximity, so reduced levels of exudates can
decrease the ability of the nematodes to locate the receptor sites on the roots. The
bacteria further reduce viable nematode populations by consuming exudates,
depriving nematodes of an additional source of energy and nutrients.
25. The effects of Poncho and VOTiVO can not be isolated
when the products are always applied together
www.lacek.com/inthefieldofdiscovery/download.cfm?
26. Long term no-till
Intensive tillage
Plow pan
Ontario Ministry of Ag and Food
(w/ healthy soil biology)
Network
of cracks
and
biopores
27. Contrasting stands of corn in the NC 9 tillage systems experiment
Would your soils change this much in 25 years?
> 3%OM
Continuous
No-till
< 1%OM
Fall plow/
spring disk
29. Physical changes are happening in flat black soils…
Long term sod
crop field
Same soil type – very different water holding capacity
30. Changes in air and water dynamics
impact root growth and function
31. Least Limiting Water Range
LLWR for loose well-aggregated soil
LLWR for compacted soil
Soil too
hard for
roots to
penetrate
20
25
dry
30
35
40
45
Soil water content, cm3/cm3 *100
50
wet
Not
enough O2
for root
respiration
55
From Weil, Ray Weil
2003
32. You really won’t know what is happening
underground unless you take a look…
33. All you need is a
shop-vac and a
hose :-> !
It’s just like going to the dentist!
35. "One of our primary goals is to get the first
three sets of crown roots deep into the soil…
In vertical-tillage, no-till or strip-till conditions,
the first set of crown roots will go down. But,
when we do horizontal tillage before planting,
except in a few conditions like sand, no matter
what we did in the fall, the first two sets of
crown roots almost always turn on the dense
layer. Hopefully, with fall vertical tillage, the
third set will penetrate.“
Ken Ferrie – Farm Journal, September 2006
36. What else should you look for?
white color
proliferate
in all
directions
Healthy shoot
growth and
high yields
Efficient use
of soil
resources
extensive
growth into
the sub-soil
minimal
evidence of
deformities
39. Understanding corn root
development
The seed roots
stop growing
shortly after the
coleoptile
emerges from
the soil surface.
The nodal root system becomes visible
at ~ V1. The nodal root system
becomes the dominant system by V6.
40. Have you ever heard of “floppy corn”
or “rootless corn” syndrome?
Where are the nodal roots?
41. “Floppy corn” or “rootless corn” occurs when surface
soil is too dry for healthy elongation of roots from the
first node (V2 to V4). Young roots emerging from the
first node will die if the meristematic tissue
desiccates prior to extension into moist soil.
Chemical injury can cause similar problems
42. 4 weeks
Corn root development
documented in the 1920s
8 weeks
If this was possible 90
years ago, just think
what is possible today?
16 weeks
Crops grown on modern row
spacings generally do not grow
such wide root systems
7 feet deep !!
43. Wading pool gardens in
my back yard
With enough water and nutrients,
small roots can grow big plants
How is it possible for healthy crops to grow
with such a limited rooting volume?
44. This unfortunately
is the norm in
agriculture
Acute root
disease
VS.
Chronic root
malfunction
Chemical, physical and biological
factors can cause CRM!
45. Chemical toxicities
inhibit root growth & function
Aluminum
toxicity
Aluminum
toxicity
Al toxicity is very common in the
SE US and in tropical countries
like Brazil
46. Understanding aluminum toxicity
Fe and Mn toxicities also occur at
lower pHs
Toxic forms
of Al are
bioavailable
at pHs < 5.5
Aluminum toxicity is
minimal above
a water pH of 5.5
http://www2.ctahr.hawaii.edu/tpss/research_extension/rxsoil/alroot.gif
50. On-line tool for estimating
maximum rates of in-row fertilizer
Damage is most likely in dry
coarse textured soils
https://www.sdstate.edu/ps/extension/soil-fert/upload/Fert-Seed-Decision-Aid.xls
51. N and P promote root branching and proliferation
52. Why do crops on tiled-drained land tend
to be more drought resistant ?
Ontario Ministry of Ag and Food
53. Do crop roots really grow toward water?
Roots elongate directed by gravity in AEROBIC soil!
Ontario Ministry of Ag and Food
54. Soil aeration affects soil temperature which
strongly affects root growth rate
Soil can
get too
hot for
optimal
root
growth!
57. Why are healthy roots so
important?
Roots perform
many valuable
functions !
58. In addition to the most obvious functions
physical support and uptake of water and nutrients
ROOTS are:
Carbon pumps that feed soil organisms and contribute
to soil organic matter
Energy and nutrient storage organs
Chemical factories that change soil pH, poison
competitors, filter out toxins, concentrate rare elements,
etc.
A sensor network that helps regulate plant growth
59. Roots review their
environment and
make ‘choices’
about what
parts of it is
profitable to
explore, and what
parts should be
avoided.
(P. Barlow, 2009)
61. What is the function of root hairs?
Surface area for
absorption of water
and nutrients
&
anchorage
62. The ins and outs of root function
H20
Root exudates
activate soil microbes
Root growth
N, S, P
Transpirational
stream
H20
Diffusion
Microorganisms produce most
but not all of the enzymes need
to digest OM
63. Rhizosphere
Roots normally occupy <
1% of topsoil volume
The rhizosphere is normally
<< 10 % of topsoil volume
Zone of root
influence
64. Navigating the rhizosphere
End of the
rhizosphere
Rhizoplane
Microbial activity
EndoRhizosphere
Ecto-Rhizosphere
< 10% of soil
volume
> 90% of
soil
volume
A few millimeters
(Lavelle and Spain, 2001)
67. Augmentation strategy
Your soils already contain Trichoderma spp.
but your crops may benefit from targeted
placement of selected strains
68. There is strong scientific evidence that
Trichoderma spp. enhance crop growth but
on-farm trials are needed to confirm
beneficial effects on your farm
71. The root systems of natural vegetation often inhibit nitrification
This suppression strategy could
be harnessed to reduce N
losses in cropping systems
72. Suppression of soybean diseases
through the use of cover crops
• University of Illinois
• Western Illinois University
• Southern Illinois University
Macomb
ChampaignUrbana
Carbondale
73. Soybean Stands in Rhizoctonia inoculated plots
UIUC 2011
2011 was a very good year for Rhizoctonia development, and in
the fallow plots we saw very little seedling emergence in the
plots inoculated with Rhizoctonia. The stand in the inoculated rye
plots were almost the same as those in the non-inoculated plots,
with the stands in the rape plots being intermediate.
Fallow
Rape
Cereal rye
74. Rhizoctonia root rot, UIUC 2012
3
a
2.5
Lesion Length (cm)
ab
P=0.05
2
abc
1.5
bc
1
c
0.5
0
Fallow
Mustard
Canola
Rape
Rye
75. Rhizoctonia root rot, UIUC 2013
3.5
Lesion Length (cm)
3
a
P=0.04
2.5
ab
2
ab
ab
b
1.5
1
0.5
0
Fallow
Mustard
Canola
Rape
Rye
76. Conclusions
Cereal rye and rape resulted in the best soybean
stands, but results were not consistent across
locations.
Cereal rye has the potential to induce soil
suppressiveness to Rhizoctonia root rot and SDS.
Cereal rye, rape, and canola can significantly decrease
SCN egg counts.
77. There is a growing body of scientific
evidence that humate products can activate
plant processes including root growth
78. Like biological inoculants, the BIG guys are
now interested in selling humates…
on-farm trials are needed to confirm
beneficial effects on your farm.
83. BUILD IT AND THEY WILL COME
should be your foundational strategy for
managing soil biology!
84. DEAN GLENNEY of Dunville, Ontario plants his corn and
soybeans on exactly the same rows, drives on the same tracks,
and never tills his fields. His Fencerow Farming systems has
produced corn yields averaging 275 bu/ac and soybeans
averaging around 60 bu/ac.
85.
86. “One of the things that pops up immediately in
our analysis is that Mr. Glenney’s plants use up all
of the fertilizer almost within 70 days after
planting. So some way this plant is sucking up all
of the nutrients, but we’re not sure why yet” “The
other field still has quite a lot of fertilizer
remaining even at the end of the season. It just
doesn’t get used. One of the fundamental things
that’s happening is in one field the root system
must be more efficient in taking up the nutrients.”
Dr. George Lazarovits
87. “We’re finding huge numbers of bacteria inside corn plants;
and the bacteria that are inside Mr. Glenney’s corn plants are
completely different than the bacteria typically found in corn.
Dr. George Lazarovits