nanotechnology in agriculture

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ROLE OF NANOTECHNOLOGY IN AGRICULTURE PRENSENTED BY: SAIMOON TEHSEEN

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this is about the application of nanotechnology in agriculture. that how we can secure the growth of plants and crops and make our crops better. in this ppt the use of nano-particles has discussed to avoid different pests and diseases by ruining the crops.

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Page 1: nanotechnology in agriculture

ROLE OF NANOTECHNOLOGY IN AGRICULTURE

PRENSENTED BY:SAIMOON TEHSEEN

Page 2: nanotechnology in agriculture

AGRICULTUREAgriculture is the backbone of most developing countries, with

more than 60% of the population reliant on it for their livelihood.Source of Livelihood Contribution to National revenueSupply of Food as well as FodderSignificance to the International Trade Marketable SurplusForeign Exchange ResourcesGreat Employment OpportunitiesEconomic Development

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Nanotechnology

Challenges

healthy, safe food; increasing risk of disease;threats to agricultural production from changing weather patterns.bio economy

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NANO-PARTICLES CONTROLLING THE PLANT DISEASES

Nano Carbon

Nano Silver

Silicon

Nano-sized SilicaSilver

Nano Alumino-Silicate

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thermal conductors, these nanotubes also host unique electrical

properties surprisingly strong. these CNTs could not only penetrate into the hard

coat of germinating seeds but also exerted growth enhancing effect.

using CNT as vehicle to deliver desired molecules into the seeds during germination that can protect them from the diseases.

it will not have any toxic or inhibiting or adverse effect on the plant.

NANO CARBON

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Nanosilver is the most studied and utilized nano particle for bio-system. It has long been known to have

strong inhibitory and bactericidal effects a broad spectrum of antimicrobial activities. high surface area and high fraction of surface atoms, have high antimicrobial effect more adhesive on bacteria and fungus, hence are better fungicide studied the antifungal effectiveness of colloidal nano silver (1.5 nm average

diameter) solution, against rose powdery mildew caused by Sphaerotheca pannosa Var rosae. It is a very wide spread and common disease of both green house and outdoor grown roses.

Double capsulized nanosilver for this disease sprayed at large area of 3306 m2 polluted by rose powdery mildew. Two days after the spray more than 95% of rose powdery mildew faded out It eliminates unwanted microorganisms in planter soils and hydroponics

systems. It is being used as foliar spray to stop fungi, moulds, rot and several other plant diseases. Moreover, silver is an excellent plant-growth stimulator.

NANO SILVER

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Silicon (Si) is known to be absorbed into plants to increase disease resistance and stress resistance

Aqueous silicate solution (, it promotes the physiological activity and growth of plants and induces disease and stress resistance in plants )

Porous hollow silica nanoparticles (PHSNs) loaded with validamycin

NANO SILICON

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A new composition of nano-sized SilicaSilver for control of various plant diseases

consisted of nano-silver combined with silica molecules and water soluble polymer,

prepared by exposing a solution including silver salt, silicate and water soluble polymer to radioactive rays.

It showed antifungal activity and controlled powdery mildews of pumpkin at 0.3 ppm in both field and greenhouse tests.

NANO-SIZED SILICASILVER

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EFFECTIVE CONCENTRATION OF NANO SILICA-SILVER

Pythium ultimum, Magnaporthe grisea, Colletotrichum gloeosporioides, Botrytis cinere and, Rhyzoctonia solani, showed 100% growth inhibition at 10 ppm of the nanosized silica-silver.

Bacillus subtilis, Azotobacter chrococum, Rhizobium tropici, Pseudomonas syringae and Xanthomonas compestris PV. Vesicatoria showed 100% growth inhibition at 100 ppm.

Disadvantage They have also reported chemical injuries caused by a

higher concentration of nanosized silica-silver on cucumber and pansy plant, when they were sprayed with a high concentration of 3200

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Alumino-Silicate nanotubes sprayed on plant surfaces are easily picked up in insect hairs. Insects actively groom and consume pesticide-filled nanotubes.

biologically more active and relatively more environmentally-safe pesticides.

Mesoporous Silica Nanoparticles can deliver DNA and chemicals into Plants thus, creating a powerful new tool for targeted delivery into plant cells.

developed porous, silica nanoparticles systems spherical in shape arrays of independent porous channels. The channels form a

honeycomb-like structure unique "capping" strategy Plant cells have rigid cell wall. Hence to penetrate it they had to

modify the surface of the particle with a chemical coating. It has been successfully used to introduce DNA and chemicals in

to Arabidopsis, tobacco and corn plants.

NANO ALUMINO-SILICATE

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OTHER NANOPARTICLES

different kind of nanoparticles silver nanoparticles (SNP), aluminium oxide (ANP), zinc oxide and titanium

dioxide in the control of rice weevil and grasserie disease in silkworm (Bombyx mori) caused by Sitophilus oryzae and baculovirus BmNPV (B. mori nuclear polyhedrosis virus), respectively.

performed bioassay, in which prepared solid and liquid formulations of the above-mentioned nanoparticles; later, applied these formulations on rice and kept in a plastic box with 20 adults of S. oryzae and observed the effects for 7 days. It was reported that hydrophilic SNP was most effective on the first day. On day 2, more than 90 % mortality was obtained with SNP and ANP. After 7 days of exposure, 95 and 86 % mortality were reported with hydrophilic and hydrophobic SNP and nearly 70 % of the insects were killed when the rice was treated with lipophilic SNP. However, 100 % mortality was observed in case of ANP. Similarly, in another bioassay carried for grasserie disease in silkworm (B. mori), a significant decrease in viral load was reported when leaves of B.

mori were treated with ethanolic suspension of hydrophobic alumino-silicate nanoparticles.

. Copper nanoparticles in soda lime glass powder showed efficient antimicrobial activity against gram-positive, gram-negative bacteria and fungi

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TECHNIQUES USED

Precision farmingPrecision farming has been a long-desired goal to

maximize output (i.e. crop yields) while minimizing input (i.e. fertilizers, pesticides, herbicides, etc.) through monitoring environmental variables and applying targeted action.

help to reduce agricultural waste and thus keep environmental pollution minimum

enhanced productivity in agriculture Very less chance of pathogens attack

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ELECTRO SPINNING

From harvesting the cotton to finalizing the fabric it’s made into, over 25% of the cotton fiber is lost to scrap or waste

used this technique of electro spinning to spin nanofibers from cellulose ((C6H10O5)n ), a complex carbohydrate composed of glucose units that makes up 90% of the cotton material

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nano sensors :

For the herbicides detection by checking the oxygen level in soil.

Nano scales herbicides :

Using nanoparticles to attack the seed coating of the weeds there germination could be stop.

Sustainable watering of crops:

In farm areas more than 50% water loss occur.High evaporation rate decreases the soil fertilityMineral zeolites used to prevent water loss.

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CAN NANOPARTICLES

BE OBTAIN FROM PLANTS?

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The alfalfa plants were grown in an artificial, gold-rich "soil" at the University of Texas-El Paso. Plants typically use their roots to extract nutrients and even heavy metals from the soil.

electron microscopy X-ray absorption spectroscopy they may be able to extract the gold

nanoparticles from the plants by centrifuge.

ALFALFA PLANTS HARVEST GOLD NANOPARTICLES

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TODAY’S MOTO

LIVE GREENGO GREEN AND PRAY FOR GREEN