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Plant Response to Novel Organo-mineral Fertilizers Based on Selective Enrichment of P-and K-Solubilizing Microorganisms in Soil

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Title Plant Response to Novel Organo-mineral Fertilizers Based on Selective Enrichment of P-and K-Solubilizing Microorganisms in Soil
Not Available
 
Creator Saritha M
Praveen Kumar
Navraten Panwar
Uday Burman
 
Subject Feldspar
Selective enrichment
Organo-mineral fertilizer
Rock phosphate
K solubilizer
P solubilizer
 
Description Not Available
Increasing fertilizer demands and dwindling mineral reserves warrant sustainable alternatives for plant fertilization. Organo-mineral fertilizers (OMFs) based on indigenous materials which are unutilized commercially are a possible option. The study describes the effect of novel OMF of phosphorus (OMF-P) and potassium (OMF-K), developed respectively from insoluble low-grade rock phosphate and feldspar on plant growth. The experiment was conducted in a glass chamber partitioned into two blocks, one with soil and the other with soil supplemented with 1% OMF-P or 1% OMF-K. Pearl millet plants were grown in the chambers for 45 days and the roots and soil from different chamber blocks were separated and analyzed. Root volume, fresh and dry weights, average root length, diameter and number of root tips were significantly increased with OMF-P/OMF-K and plants showed improved growth and plant height. The release and availability of P/K in soil was confirmed with isolations of P- and K-solubilizing fungi from the blocks with OMF along with significantly higher values of available P (0.006 mg g−1) and K (0.01 mg g−1) recorded from these blocks compared to control chambers. Moreover, the OMF prills did not exhibit any adverse effects on the plants and on soil microflora. The release of soluble P and K from the OMF is attributed to the presence of P and K solubilizers in soil, since conditions favourable for their selective enrichment are created. The OMF prills developed could address issues of deteriorating mineral reserves and associated environmental degradation, besides providing a sustainable management option.
Not Available
 
Date 2021-07-23T09:39:56Z
2021-07-23T09:39:56Z
2021-06-28
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/49584
 
Language English
 
Relation Not Available;
 
Publisher Springer