Author
Listed:
- Mahipal Choudhary
(ICAR-Central Arid Zone Research Institute, Jodhpur 342003, India)
- Nishant K. Sinha
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Monoranjan Mohanty
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Somasundaram Jayaraman
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Nikul Kumari
(School of Life Science, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia)
- Bikram Jyoti
(ICAR-Central Institute of Agricultural Engineering, Nabibagh, Berasia Road, Bhopal 462038, India)
- Ankur Srivastava
(School of Life Science, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia)
- Jyoti K. Thakur
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Nirmal Kumar
(ICAR-National Bureau of Soil Survey & Land Use Planning, Nagpur 440033, India)
- Pramod Jha
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Dhiraj Kumar
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Jitendra Kumar
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Rahul Mishra
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Ravi H. Wanjari
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Ranjeet S. Chaudhary
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Kuntal M. Hati
(ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462038, India)
- Jaideep K. Bisht
(ICAR-Vivekanand Parvatiya Krishi Anusandhan Sansthan, Almora 263601, India)
- Arunava Pattanayak
(ICAR-Vivekanand Parvatiya Krishi Anusandhan Sansthan, Almora 263601, India)
Abstract
The present investigation evaluated the effect of continuous application (>43 years) of organic and inorganic fertilisers on soil aggregate stability, aggregate size distribution, aggregate-associated carbon and its fractions, and total macro-nutrient content under the soybean–wheat cropping system in vertisols of the semi-arid region. Seven contrasting treatments consisted of T 1 (50% NPK), T 2 (100% NPK), T 3 (150% NPK), T 4 (100% NP), T 5 (100% N), T 6 (100% NPK + FYM) and T 7 Control (crop raised without addition of any nutrient). The highest and lowest percentage of large macroaggregates (11.3%) was found in T 6 and T 7 treatments. The NPK + FYM (T 6 ) treatments substantially increased the proportion of the macroaggregate fractions (>2 mm and 2–0.25 mm) than other treatments. However, different manure and fertilisation treatments did not affect the proportion of silt + clay aggregates. Long-term application of 100% NPK + FYM increased mean weight diameter (MWD) and stable water aggregates (WSA) by 35.7 and 6.01% over control. The aggregate-associated SOC followed the trend of large macroaggregates > microaggregates > small macroaggregates > silt + clay fractions. Application of long-term manure plus inorganic fertiliser (T 6 ) has also increased Walkley Black soil organic carbon (WBSC), permanganate oxidisable carbon (KMnO 4 -C), soil microbial biomass carbon (SMBC), carbon mineralisation (CM), total soil carbon (TSC), total soil N (TSN), total soil phosphorus (TSP) and total soil potassium (STK) by 82.1, 71.6, 182, 42.4, 23.9, 41.6, 117 and 18.4%, respectively, over control (T 7 ). The lowest metabolic quotient (MetQ) value of 5.13 mg CO 2 –C mg −1 MBC h −1 was obtained in the control treatment (T 7 ). The lowest MetQ was recorded in the integrated application of manure + inorganic fertiliser, i.e., 100% NPK + FYM (T 6 ). Similarly, microbial quotient (MiQ) was also higher in treatment T 6 (100% NPK + FYM) and lower in T 7 (control). It is concluded that the application of inorganic fertiliser alone is insufficient to maintain soil health and sustainability so, combined application of manure plus inorganic fertilisation is the most important nutrient management practice for long-term soil sustainability because it maintains SOC levels in soils for long periods and ultimately ensures the soil health of soybean–wheat cropping systems in the vertisols of semi-arid regions.
Suggested Citation
Mahipal Choudhary & Nishant K. Sinha & Monoranjan Mohanty & Somasundaram Jayaraman & Nikul Kumari & Bikram Jyoti & Ankur Srivastava & Jyoti K. Thakur & Nirmal Kumar & Pramod Jha & Dhiraj Kumar & Jiten, 2023.
"Response of Contrasting Nutrient Management Regimes on Soil Aggregation, Aggregate-Associated Carbon and Macronutrients in a 43-Year Long-Term Experiment,"
Sustainability, MDPI, vol. 15(3), pages 1-19, February.
Handle:
RePEc:gam:jsusta:v:15:y:2023:i:3:p:2679-:d:1054917
Download full text from publisher
References listed on IDEAS
- Choudhary, Mahipal & Panday, S.C. & Meena, Vijay Singh & Singh, Sher & Yadav, R.P. & Pattanayak, Arunava & Mahanta, Dibakar & Bisht, Jaideep Kumar & Stanley, J., 2020.
"Long-term tillage and irrigation management practices: Strategies to enhance crop and water productivity under rice-wheat rotation of Indian mid-Himalayan Region,"
Agricultural Water Management, Elsevier, vol. 232(C).
Full references (including those not matched with items on IDEAS)
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