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Soil carbon pools, carbon and nitrogen storage pattern in a soybeanwheat cropping system based on 21-year field experiment of Indian mid-Himalayas

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Title Soil carbon pools, carbon and nitrogen storage pattern in a soybeanwheat cropping system based on 21-year field experiment of Indian mid-Himalayas
Not Available
 
Creator Mahipal Choudhary
S. C. PANDAY
V. S. MEENA
S. SINGH
R. P. YADAV
P. K. MISHRA
T. MONDAL
D. MAHANTA
J. K. BISHT
A. PATTANAYAK
 
Subject Farm-yard manure (FYM), sequestration, SOC, soil sustainability, storage
 
Description Not Available
Long-term organic and mineral fertilization can bring in changes in the different
pools of soil carbon (C) and nitrogen (N), and sequestration under irrigated soybean-wheat
cropping system (SW). Results showed that long-term mineral and organic fertilization (NPK +
FYM) significantly (P < 0.05) increased soil reaction (5.96, 6.41 and 6.56) as compared to
unfertilized control (CK), however, it was 0.24, 0.11 and 0.12 units lower than FYM in all three
soil depths. NPK + FYM fertilization clearly indicated that ~54, 51 and 52% higher total organic
carbon (TOC) and ~46, 56 and 55% higher total nitrogen (TN) as compared to CK in 0–15 cm,
15–30 cm and 30–45 cm soil depths, respectively. Average values for TOC and TN with different
treated plots were 9.89, 9.23 and 8.57 g kg-1 and 0.80, 0.74 and 0.68 g kg–1 under all three soil
depths. We conclude that, significantly higher C (~22, 20 and 19 Mg C ha–1) and N (1.79, 1.67
and 1.53 Mg N ha–1) storage was recorded with NPK + FYM as compared to CK in 0–15 cm,
15–30 cm and 30–45 cm soil depths, respectively. Nevertheless, higher total C and N
sequestration rate in 0-45 cm soil depth was noted under NPK + FYM (~1153 and 91 kg ha–1
year–1) treated plot, followed by N + FYM (~981 and 78 kg ha–1 year-1) and FYM alone (~873 and
63 kg C ha–1 year–1). These results clearly indicated that combined organic and mineral
fertilization have its positive effect on soil C and N pools, and sequestration in the long-run, and
thus, help in maintaining long-term soil sustainability.
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Date 2020-12-03T06:42:00Z
2020-12-03T06:42:00Z
2018-11-19
 
Type Article
 
Identifier 0
0564-3295
http://krishi.icar.gov.in/jspui/handle/123456789/42886
 
Language English
 
Relation Not Available;
 
Publisher International Society for Tropical Ecology