干旱区生态环境知识资源中心(Arid): Response of Contrasting Nutrient Management Regimes on Soil Aggregation, Aggregate-Associated Carbon and Macronutrients in a 43-Year Long-Term Experiment

Arid

DOI	10.3390/su15032679
	Response of Contrasting Nutrient Management Regimes on Soil Aggregation, Aggregate-Associated Carbon and Macronutrients in a 43-Year Long-Term Experiment
	Choudhary, Mahipal; Sinha, Nishant K.; Mohanty, Monoranjan; Jayaraman, Somasundaram; Kumari, Nikul; Jyoti, Bikram; Srivastava, Ankur; Thakur, Jyoti K.; Kumar, Nirmal; Jha, Pramod; Kumar, Dhiraj; Kumar, Jitendra; Mishra, Rahul; Wanjari, Ravi H.; Chaudhary, Ranjeet S.; Hati, Kuntal M.; Bisht, Jaideep K.; Pattanayak, Arunava
通讯作者	Sinha, NK
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2023
卷号	15 期号:3
英文摘要	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 (KMnO4-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 CO2-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.
英文关键词	aggregate-associated carbon long-term fertiliser experiment mean weight diameter metabolic quotient vertisols
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000931362700001
WOS关键词	ORGANIC-MATTER ; PHYSICAL-PROPERTIES ; MICROBIAL COMMUNITY ; MANURE APPLICATION ; DIFFERENT TILLAGE ; SEMIARID REGION ; CROP YIELDS ; NITROGEN ; FERTILIZER ; FRACTIONS
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398753
推荐引用方式 GB/T 7714	Choudhary, Mahipal,Sinha, Nishant K.,Mohanty, Monoranjan,et al. Response of Contrasting Nutrient Management Regimes on Soil Aggregation, Aggregate-Associated Carbon and Macronutrients in a 43-Year Long-Term Experiment[J],2023,15(3).
APA	Choudhary, Mahipal.,Sinha, Nishant K..,Mohanty, Monoranjan.,Jayaraman, Somasundaram.,Kumari, Nikul.,...&Pattanayak, Arunava.(2023).Response of Contrasting Nutrient Management Regimes on Soil Aggregation, Aggregate-Associated Carbon and Macronutrients in a 43-Year Long-Term Experiment.SUSTAINABILITY,15(3).
MLA	Choudhary, Mahipal,et al."Response of Contrasting Nutrient Management Regimes on Soil Aggregation, Aggregate-Associated Carbon and Macronutrients in a 43-Year Long-Term Experiment".SUSTAINABILITY 15.3(2023).