Bio Fertilizers

Biof er tiliz er An Biological Based Product

Bio fer tili zer s Organic,natural,Bioinoculants Ready to use live formulates. Beneficial microbes N2 fixers PO4 Solubilizers Organic Matter Decomposers

Mo st imp Ke y n utr ie nt “ N ” & “P”  N2 fixers: Need ?  Advantages of Biological Nitrogen Fixation. Types  Symbiotic N2 fixers  Non symbiotic N2 fixers  Free living N2 Fixers

Sym bio tic N2 f ixers: Rhizobia:Most exploited Infect legumes Rhizobia host compatibility important

Frankia:inoculum infectivity customisation of target area and target species

Cya nobacteria Anabaena azollae : azolla  flooded soil condition; wide adaptability  Increase availability of micronutrients; Increased Nitrogen, yield  Great potential: very important for Rice Present Status: Rhizobia Frankia Cyanobacteria

No n sym bio tic N2 fixers Azospirillum Azospirillum

    

Wide host range Tolerance to high soil temperature Produce Plant growth promoting substance Form Cyst under stress Great promise as a growth promoting N2 fixing biofertilizer

Acetobacter   

Is a non symbiotic associated with sugarcane crop Difficult to isolate Grow artificially

No n sym bio tic N2 fixers Klebsiella  Fix N2 under anaerobic condition,microaerophilic condition  Require several field trails

Bacillus  Increased chlorophyll, Phosphorus , N2 content  Produce IAA,Giberrelic acid

Free liv ing N 2 Ba cteri a Azotobacter Promotes plant growth by N2 fixation Growth promoting substances Fungi static substances Improves seed germination and plant growth  Thrives in alkaline soil    

Pho spha te solu bil isi ng bacteri a: W hy? Formation of soluble inorganic phosphate: easy absorption by plants Reduce the phosphate dose by 50% Cheaper Bacillus Pseudomonas Potential as Biopesticide.Dual ADV Rock Phosphate Seed treatment Soil Application

Fungii a s Bio fertilize rs  Vesicular Arbuscular Mycorrhizae: obligate symbiont.  Increased immobile nutient uptake,water  Heavy metal tolerant  Disease resistance  Reduces stress response  Micropropogation  Saves phospate fertilizer  But limited Field application?  On farm Production

Ge neral Ap plic atio n Pr ocedure o f Bio fertili ze r Seed treatment. Soil Application. Seedling root dip. Other general techniques.

Po or r esp onse? On account of:    

Quality of product Proper Storage Correct Usage Soil and Environment

How to get good response ?  Right combination of Biofertilizers  Use suggested method of application at appropriate time  For problematic soils :use corrective methods like lime or gypsum  Use for specified crop only  Care in storage

Future Sc ope  Quality and Pricing  Role of Government  Further Research  Proper Marketing Strategies

Con clus io n Why Biofertilizer?  Overcome ecological problems.  General But Wide Appliation  Integrated Nutrient Management Sys  Important along with chemical fertilizers and organic manures Supplement plant nutrient requirements Environment friendly green revolution

“ Far me r s li ve in a wor ld o f a ctio n ,n ot of wor ds,so per sonal experein ce in agricultural is the o nly me aningfu l source of c onvictio n”

-M.S.Swaminathan