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Effect of organic amendments on the proliferation stability of Trichoderma harzianum and suppression of Phytophthora meadii in cardamom soils in relation to soil microflora

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Title Effect of organic amendments on the proliferation stability of Trichoderma harzianum and suppression of Phytophthora meadii in cardamom soils in relation to soil microflora
Not Available
 
Creator Suseela Bhai R
Sarma Y R
 
Subject Coffee husk
crop residue
Elettaria cardamomum
farm yard manure
neem cake
organic amendments
Phytophthora meadii
poultry manure
Trichoderma harzianum
 
Description Not Available
an even economical and more frequently used method of attaining biological
control of soil borne plant pathogens is incorporating plant residues and organic amendments to the
soil, which support high level of microbial activity. In the present study farm yard manure (FyM),
poultry manure (PM), coffee husk (CH) and neem cake (NC) were used as soil amendments with
or without Trichoderma harzianum to evaluate their efficacy in suppressing Phytophthora meadii
under varying moisture conditions. the survival of Phytophthora was found higher at 50% moisture
level. Neem cake with Trichoderma appeared as a suitable amendment at all moisture level and has
shown 69% reduction in Phytophthora infection over control. at 75% and 100% (field capacity), no
detectable level of Phytophthora was observed in treatments where T. harzianum was fortified with
CH, PM and NC. at field capacity, PM and FyM with Trichoderma also reduced the build up of
Phytophthora. Native population of Trichoderma was found negligible in non-amended treatments. all the four amendments maintained the population and supported the growth of Trichoderma at all
moisture levels. In general, organic manures with T. harzianum reduced the population level of other
fungi, while crop residues supported the growth of fungi like Penicillium, Rhizopus, Aspergillus,
Mucor, etc. besides t. harzianum.
Not Available
 
Date 2021-08-17T15:02:59Z
2021-08-17T15:02:59Z
2009
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/57632
 
Language English
 
Relation Not Available;
 
Publisher Not Available