1.

Project Code

:

PRP- 3329

2.

Title

:

Impact of microbially enriched compost on suppression of soil borne diseases of mulberry

3.

Investigators

:

Sharma DD, Mala VR. Naik VN, Chowdary NB, Das PK

4.

Project period

:

Jan, 2005 - June 2007

5.

Institute/ University

CSR&TI, Mysore

6.

Project cost

:

0.50 Lakh

7.

Objectives

• To know the impact of various types of composts enriched with useful/ antagonistic microbes on sprouting and survivability of stem cuttings of mulberry during nursery plantation as well as suppression of nursery diseases.
• To know the effect of composts enriched with useful/antagonistic microbes on suppression of root knot disease of mulberry.
• To know the effect of composts enriched with useful/antagonistic microbes on suppression of root rot disease of mulberry.

8.

Important findings

Studies were conducted in mulberry to find out the effect of compost prepared from rearing waste (SR) enriched with Rock phosphate (RP), Phosphate solublizing bacteria (PSB), Azotobacter (Az), Trichoderma harzianum (Th) and T. pseudokoningii (Tp) on suppression of nursery, root knot and root rot diseases.

Maximum sprouting (91.8%) & survival of cuttings (89.8%) recorded in Rearing waste (SR) enriched with RP+Az+PSB+Th+Tp+ neem oil cake (NOC), on par with that of the recommendation (Nursery Guard + Indofil M-45). Maximum root knot control (80.7%) was found in treatment SR+RP+Az+PSB+ Th+Tp+NOC. The same treatment was found to be effective in controlling root rot disease also with 74.3 % control on par with that of the recommended method (Raksha + Indofil M-45).

Application of seri residue enriched with Rock phosphate + Phosphate solublizing bacteria + Azotobacter + Trichoderma harzianum + T. pseudokoningii mixed with neem oil cake (2:1) @ 2 kg/m2 / plot for control of nursery diseases and for control of root knot and root rot diseases application of the mixture @ 250 g/plant (3 times/year at an interval of 4 months) followed by irrigation is recommended.