Transcript biofertilisers in tomato

Biofertilizers Use in Tomato
Biofertilizers Use in Tomato
Introduction
Biofertilizers are ready to use live formulations of
beneficial microorganisms which on application,
mobilize availability of nutrients by their biological
activity and build up soil health
Form a part of integrated nutrient management
Ideal for farmers practicing organic farming
Increase yield by 20-30% in crops
Biofertilizers Use in Tomato
Types of biofertilizers
For Nitrogen
Nitrogen fixing bacteria like Rhizobium,
Azotobacter, Azospirillum
For Phosphorus & hormones
Phosphate solublizing bacteria
Vesicular Arbuscular Mycorrhiza (VAM)
Plant growth promoting Rhizobacteria
(PGPR)
Biofertilizers Use in Tomato
Mode of action of biofertilizers
Biofertilizers fix atmospheric nitrogen in the
soil and make it available to the plants
Decompose organic matter and help in
mineralisation
Produce hormones that promote
root growth
Biofertilizers Use in Tomato
Benefits of biofertilizers
 Cost effective: increase crop yield by 10-30%
 Activate the soil biologically
 Restore natural soil fertility
 Supplement to fertilizers: replace chemical
fertilizers upto 25%
 Provide protection against some soil borne
diseases
Biofertilizers Use in Tomato
Biofertilizer for tomato
Azotobacter with phosphate solubilizing bacteria is
recommended for tomato crop
Azotobacter acts by
 Supplying 20-40 mg N/g of carbon source
 Producing growth substances like vitamins, IAA
and Gibberellic acid
 Biological control of plant diseases and suppresses
plant pathogens
Mycorrhiza help by solubilizing
overcoming moisture stress
nutrients
and
Biofertilizers Use in Tomato
Method of application
Seed Treatment
• Suspend one packet (200 g) of
biofertilizer in approx. 400 ml water
(1:2) to treat 10-12 kg tomato seed
• Pour the suspension over the seeds
• Mix thoroughly to apply uniformly
• Dry the seeds in shade and sow
• Sugar solution (10%) or gum arabica
(10%) can be used as an adhesive
Contd..
Biofertilizers Use in Tomato
Method of application
Seedling dipping
• Suspend 1kg (5 packets) biofertilizer
culture in 10-15 litres of water. One
packet is sufficient for 0.1 ha area
• Make small bundles of tomato
seedlings
• Dip the root of the seedlings in the
suspension for 15-30 minutes
• Transplant immediately
Contd..
Biofertilizers Use in Tomato
Method of application
Soil application
• Mix 10-15 packets (each of 200 g)
with 40-60 kg of well decomposed
cattle manure or with 40-60 kg soil
for one acre area
• Wet the mixture by sprinkling
water
• Broadcast into the soil at the time
of sowing
Biofertilizers Use in Tomato
Precautions for using Biofertilizers
 Biofertilizer packets should be stored in cool and
dry place away from direct sunlight
 Do not mix biofertilizer simultaneously with
inorganic fertilizers/pesticides
 Biofertilizer packet should be used before its
expiry
 For better results, biofertilizers should be used
in combination with inorganic fertilizers
Biofertilizers Use in Tomato
Let us sum up
 Biofertilizers are useful microorganisms
nutrients to the plants in the rhizosphere
that
provide
 Reduce environmental pollution and cut down the cost of
chemical fertilizers
 Release the nutrients gradually and prevent leaching of
nutrients from the soil
 Improve soil health and provide protection against some soil
borne diseases
 Biofertilizers are applied to the crop as seed, seedling or
soil treatment