Impact of different nutrient management practices on soil properties after garden pea (Pisum sativum) cultivation
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Date
2021-09
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CCSHAU, Hisar
Abstract
A field experiment started since Rabi, 2019 at Research Farm, Department of Vegetable
Science, CCS Haryana Agricultural University, Hisar (India) was selected for the present investigation
entitled “Impact of different nutrient management practices on soil properties after garden pea (Pisum
sativum) cultivation”. The experiment was laid out with eight treatments in a randomized block design
with three replications. The soil samples were collected after garden pea harvest. Application of RDN
through FYM or vermicompost alone or alongwith CUBOF decreased the soil pH and increased the
soil EC over their initial values. The highest SOC and TOC content (0.65 and 0.81%, respectively) was
noticed with the application of RDN through FYM along with CUBOF, while, the highest DOC
content (41.22 ppm) was reported with RDN applied through vermicompost alongwith CUBOF. The
highest very labile and labile carbon content was recorded with the application of RDN through
vermicompost combined with CUBOF (0.29%) and RDN applied through FYM combined with
CUBOF (0.22%), respectively. Available N, P, K and S content in soil varied from 115.4 to 161.6,
23.08 to 35.24, 591.1 to 843.4 and 20.24 to 32.54 kg ha-1
, respectively. Recommended dose of
fertilizers recorded the highest available N content in soil, while, the highest available P, K and S
content was reported with the incorporation of RDN through FYM alongwith CUBOF. Application of
RDN through vermicompost recorded the highest DTPA-extractable Zn and Fe concentration (1.15 and
0.96 ppm, respectively), while, the highest DTPA-extractable Mn concentration was noticed with 50%
RDN was applied through vermicompost along with CUBOF (2.09 ppm). The highest DTPA extractable Cu concentration (0.701 ppm) was reported with the application of RDN through FYM
alongwith CUBOF. The highest K+
, Ca2+, Mg2+ and Cl ion concentration was recorded with the
application of RDN through FYM along with CUBOF, while, the highest Na+
, HCO3
-
and SO4
2-
ion
concentration was recorded with the application of RDN through vermicompost combined with
CUBOF which are positively correlated with soil EC. The MBC and MBN content of soil ranged
between 212.9 to 381.5 and 17.5 to 40.4 ppm, respectively. The highest dehydrogenase (38.92 µg
TPFg-1 24h-1
), alkaline phosphatase (357.85 µg PNP g-1 h
-1
) and urease activity (20.07 µgNH4
+
-N g
-1
h
-1
)
was recorded with RDN applied through vermicompost alongwith CUBOF, while, arylsulfatase
activity (10.84 µg PNP g
-1
h
-1
) was recorded with RDN applied through FYM alongwith CUBOF.
Incorporation of RDN through vermicompost recorded non-significantly higher bacterial, fungal and
actinomycetes count (3.86×107
, 2.65×106 and 2.66×106 cfu g-1 soil, respectively) as compared to RDN
applied through FYM (3.71×107
, 2.41×106 and 2.48×106 cfu g-1 soil, respectively).