Tamil Nadu

Agriculture department advises farmers to use bio-fertilisers

The Joint Director of Agriculture Mr. Mahendra Pratap Dixit requested farmers to reduce the quantum of chemical fertilizers.   | Photo Credit: Special Arrangement

Agriculture department officials have advised farmers in the district to increase the use of liquid bio-fertiliser (LBF) for improvement in soil health and increase in the output in the long run.

Department of Agriculture, Vellore, has set a target to produce 50,000 litres of LBF in its Gudiyatham liquid bio-fertilisers Production Unit, the Joint Director of Agriculture, Mahendra Pradap Dixit said.

The continuous use of chemical fertilisers do not only degrade the soil but also increases the cost of cultivation. The micro-organisms convert complex nutrients into simple nutrients for the availability of the plants and ensure proper growth and regulation in their physiology, thereby increasing the crop yield.

Mr. Dixit requested the farmers to reduce the use of chemical fertilisers and increase the non-chemical fertilisers such as liquid bio-fertilisers to reduce the cost of cultivation and to continue maintaining good soil health for the next generation.

A bio-fertilizer is a substance which contains living micro-organisms, which, when applied to seeds, plant surfaces or soil, colonise the Rhizosphere or the interior of the plant. It also fixes the atmospheric Nitrogen into the plant and makes unavailable soil Phosphorus accessible, the Joint Director said.

He said that the cells of the micro-organisms are filtered by tangential flow filtration, a highly technical method in India for biomolecule filtration and the bio-fertilisers are available in 100ml, 250ml, 500ml and 1000ml containers.

The basic nutrients required for the LBF production unit are brought from Tamil Nadu Agriculture University, Coimbatore, and are categorised into sub-products, before they are transferred in to fermentors for mass-multiplication.

The final product contains 100 crore numbers of bacterial culture per millilitre, says a senior agriculture officer at the Gudiyatham LBF production unit.

About 50,000 litres of LBF is produced in this unit and are transferred to Agriculture Extension Centres in Vellore and Thiruvannamalai district. The products are sold to the farmers at a subsidised rate of 50%.

These bio-fertilisers are used along with farmyard manures and irrigation water, but should not be mixed with chemical bio-fertilisers or kept under direct sunlight.

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Printable version | Oct 23, 2021 5:43:52 PM | https://www.thehindu.com/news/national/tamil-nadu/vellore-agriculture-department-advises-farmers-to-use-bio-fertilisers/article29569483.ece

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