nanotechnology in agriculture
DESCRIPTION
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.TRANSCRIPT
ROLE OF NANOTECHNOLOGY IN AGRICULTURE
PRENSENTED BY:SAIMOON TEHSEEN
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
Nanotechnology
Challenges
healthy, safe food; increasing risk of disease;threats to agricultural production from changing weather patterns.bio economy
NANO-PARTICLES CONTROLLING THE PLANT DISEASES
Nano Carbon
Nano Silver
Silicon
Nano-sized SilicaSilver
Nano Alumino-Silicate
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
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
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
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
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
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
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
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
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
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.
CAN NANOPARTICLES
BE OBTAIN FROM PLANTS?
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
TODAY’S MOTO
LIVE GREENGO GREEN AND PRAY FOR GREEN