Biofertilizers use in Mango

Biofertilizers use in Mango

Biofertilizer is a substance which contains living microorganism. It can be applied to seed, plant surfaces, or soil, colonizes the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of primary nutrients to the host plant.

Biofertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorous, and stimulating plant growth through the synthesis of growth promoting substances. Biofertilizers can reduce the use of chemical fertilizers.

Biofertilizers are cost effective as compared to chemical fertilizers and reduces the costs towards fertilizers use, especially regarding nitrogen and phosphorus.

Thus under integrated nutrient management system, application of biofertilizers is important. Hence we must of an idea about different biofertlizers, their doses and methods of application for effective use.

It is environmentally friendly fertilizer that not only prevents damaging the natural source but helps to some extend clean the nature from precipitated chemical fertilizer and can provide better nourishment to plants.

Objective

After completing this lesson, you will be able to :

Explain the different types of biofertilizers, doses and methods of biofertilizers application in

mango.

Useful biofertilizers

AzobactorPhosphate solubilizing bacteria

AMFAzosprillum

Trichoderma

Types of Biofertilizers

Nitrogen fixing biofertilizers eg. Rhizobium, Bradyrhizobium, Azospirillum and Azotobacter.

Phosphorous solubilising biofertilizers (PSB) eg.Bacillus, Pseudomonas and Aspergillus

Phosphate mobilizing biofertilizer eg. Mycorrhiza

Plant growth promoting biofertilizers eg. Pseudomonas

Methods of application

Azosprillum and Azotobactor

☛ Seed treatment ☛ Seedling dipping ☛ Soil application

1. Seedling dippingPrepare the suspension of required amount of inoculants in water in the ratio of 1:10.

☛ Dip the roots of seedlings in suspension and keep them immersed for about 5 minutes

☛ Take out the seedlings from the suspension and transplant as early as possible.

200 g of inoculant is enough for treatment of 10-15 kg of seeds.

2. Seed treatment

Phosphate Solubilizing Biofertilizers (PSB)Methods for application

Seed treatmentSeedling dippingSoil application Doses :

10kg per acre inoculant is enough for treatment of mango seeds.

Soil application: Mix 3-5 kg inoculant with 50 kg finely powdered FYM. Broad cast this mixture at the time of last ploughing.

Precaution while applying biofertlizers

Biofertilizers should be stored in dry and cool places. They should not be stored in hot

sun and sharp light.

Biofertilizers should not be stored along with insecticides and chemical fertlizers.

Biofertlizers should be applied few days after the application of insecticides and fungicides.

Always apply recommended biofertilizers .