Pre-monsoon spatial distribution of available micronutrients and sulphur in surface soils and their management zones in Indian Indo-Gangetic Plain

Autor: Vinod Singh, Arvind Kumar Shukla, Sanjib Kumar Behera, Amaresh Kumar Nayak, Sudipta Das, Rahul Tripathi, Prakash Chandra Srivastava, A. K. Tripathi, Satya Pratap Pachauri, Salwinder Singh Dhaliwal, A. K. Sachan, Mahesh C. Meena, Siba Prasad Datta, Brahma S. Dwivedi, Anil Kumar, J. Pathak, Vivek Trivedi, Chandra Prakash
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Rain
Statistics as Topic
Soil pH
010501 environmental sciences
01 natural sciences
Soil management
Soil
Nutrient
Agricultural Soil Science
Medicine and Health Sciences
Micronutrients
Multidisciplinary
Sulfates
Nutritional Deficiencies
Agriculture
04 agricultural and veterinary sciences
Chemistry
Agricultural soil science
Micronutrient Deficiencies
Physical Sciences
Environmental chemistry
Medicine
Research Article
Chemical Elements
Environmental Monitoring
Soil test
Science
Soil Science
India
Crops
0105 earth and related environmental sciences
Nutrition
Manganese
Spatial Analysis
Crop yield
Ecology and Environmental Sciences
Chemical Compounds
Biology and Life Sciences
Crop Management
Agronomy
Soil water
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
Environmental science
Spatial variability
Soil chemistry
Salts
Sulfur
Crop Science
Cereal Crops
Zdroj: PLoS ONE
PLoS ONE, Vol 15, Iss 6, p e0234053 (2020)
ISSN: 1932-6203
Popis: The efficient (site-specific) management of soil nutrients is possible by understanding the spatial variability in distribution of phyto-available nutrients (here after called available nutrients) and identifying the soil management zones (MZs) of agricultural landscapes. There is need for delineating soil MZs of agricultural landscapes of the world for efficient management of soil nutrients in order to obtain sustainability in crop yield. The present study was, therefore, undertaken to understand the spatial distribution pattern of available micronutrients (zinc (Zn), boron (B), iron (Fe), manganese (Mn) and copper (Cu)), available sulphur (S), and soil properties (soil acidity (pH), electrical conductivity (EC) and organic carbon (SOC) content) in soils of intensively cultivated Indo-Gangetic Plain (IGP) of India and to delineate soil MZs for efficient management of soil nutrients. Totally, 55101 soil samples from 0-15 cm depth were obtained from 167 districts of IGP during 2014 to 2017 and were analysed for different soil parameters. Soil pH, EC and SOC content varied from 4.44 to 9.80, 0.02 to 2.13 dS m-1 and 0.10 to 1.99%, respectively. The concentration of available Zn, B, Fe, Mn, Cu and S varied from 0.01 to 3.27, 0.01 to 3.51, 0.19 to 55.7, 0.05 to 49.0, 0.01 to 5.29 and 1.01 to 108 mg kg-1, respectively. Geostatistical analysis resulted in varied distribution pattern of studied soil parameters with moderate to strong spatial dependence. The extent (% area) of nutrient deficiencies in IGP followed the order: S > Zn > B > Mn > Cu > Fe. Principal component analysis and fuzzy c-means clustering produced six distinctly different soil MZs of IGP for implementation of zone-specific soil nutrient management strategies for attaining sustainability in crop yield. The developed MZ maps could also be utilized for prioritization and rationalization of nutrients supply in IGP of India.
Databáze: OpenAIRE
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