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NRRI-Azolla-Sporocarp Formulation for Nitrogen-management in Low land Rice

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Title NRRI-Azolla-Sporocarp Formulation for Nitrogen-management in Low land Rice
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Creator Upendra Kumar, Megha Kaviraj, Snehasini Rout, P. Panneerselvam, AK Nayak
 
Subject Sporocarp-based Azolla formulation, biofertilizer, fixes nitrogen, cyanobacteria, lowland rice production
 
Description Not Available
Azolla is a free-floating aquatic fern and known biofertilizer for lowland rice as it fixes nitrogen from atmosphere with help of cyanobacteria, which resides exclusively in its dorsal leaf pocket. Though, it is a well established biofertilizer still it has not become popular and reaches among large farming community due to requirement of its huge primary inoculums (2-5 t/ha). Even transportation of its bulk amount for ex-situ application and maintenance leads to higher costs to the farmers. Hence, a technology has been made to reduce its initial inoculum load by developing sporocarp-based Azolla formulation. Altogether 23 strains of sporocarp-producing Azolla are identified among 102 strains of Azolla germplasm, conserved and maintained at NRRI, Cuttack round the year. Carrier-based sporocarp formulation (50 ± 10 spores/g product) is developed to reduce its bulk inoculum. This sporocarp-based Azolla technology may considerably reduce the quantity of its primary inoculum and ease the application in lowland rice production.
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Date 2022-03-31T04:46:57Z
2022-03-31T04:46:57Z
2021-03-01
 
Type Technical Bulletin
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/70934
 
Language English
 
Relation 157;
 
Publisher ICAR-National Rice Research Institute, Cuttack