Agriculture Reference
In-Depth Information
counts, respectively) and T
6
(48 and 26 × 10
3
cfu g
-1
bacterial and fungal
counts, respectively). On the contrary, inclusion of green manuring with
75% RDF plus MC (50 and 25 × 10
3
cfu g
-1
bacterial and fungal counts,
respectively, with T
10
) and 50% RDF + MC (44 and 25 × 10
3
cfu g
-1
soil
bacterial and fungal counts, respectively, with T
11
), although brought some
favorable changes on soil microbial counts, but were more significantly of
lower order when compared to other FYM or vermicompost based INM
treatments (e.g., T
1,
T
6
, T
9
, etc.).
11.7.6 SOIL MICROBIAL BIOMASS NUTRIENTS
Rhizopshere microbial environment modification through roof exudation
is an important attribute that regulates only the availability of nutrient soil,
11.7
) were accompanied with significant changes in soil microbial bio-
mass nutrients in terms of microbial carbon (C
mic
), microbial N (N
mic
) and
microbial P(P
mic
). Combination of 75% RDF + MC as T
2
brought down the
soil microbial biomass nutrients (146.3 mg kg
-1
C
mic
, 19.3 mg kg
-1
N
mic
and
15.2 mg kg
-1
P
mic
) compared to 100% RDF as T
1
(152.1 mg kg
-1
C
mic
, 19.1
mg kg
-1
N
mic
and 16.1 mg kg
-1
P
mic
). But incorporation of organic manure
either FYM (159.1 mg kg
-1
C
mic
23.9 mg kg
-1
N
mic
and 15.9 mg kg-
1
P
mic
with T
3
or 164.1 mg kg
-1
C
mic
, 25.6 mg kg
-1
N
mic
and 17.0 mg kg
-1
with T
4
)
or vermicompost (169.6 mg kg
-1
C
mic
, 29.2 mg kg
-1
N
mic
and 18.9 mg kg
-1
P
mic
with T
7
or 176.1 mg kg
-1
C
mic
, 29.8 mg kg
-1
N
mic
and 20.4 mg kg
-1
P
mic
with T
8
) helped further in recording higher level of soil microbial biomass
nutrients. But these changes were still of lower order in the absence of mi-
crobial consortium treatments. The treatments like T
5(
169.7 mg kg
-1
C
mic
,
29.6 mg kg
-1
N
mic
and 17.6 mg kg
-1
P
mic
), T
6(
169.2 mg kg
-1
C
mic
, 30.3 mg
kg
-1
N
mic
and 19.3 mg kg
-1
P
mic
) and T
9
(202.5 mg kg
-1
C
mic
, 49.4 mg kg
-1
N
mic
and 24.5 mg kg
-1
P
mic
) produced the best response compared to treat-
ments with MC (e.g., T
3
, T
4
, T
7
and T
8
). These responses supported the fact
that all the three components of INM are mandatory in order to harness the
best effectiveness of different INM modules.
TABLE 11.7
Changes in Total Bacterial and Fungal Count of Soil Samples (0-15 cm) in
Response to Different INM-based Treatments (Pooled data)
