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Long-term effect of various organic and inorganic nutrient sources on rice yield and soil quality in west coast India using suitable indexing techniques

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Title Long-term effect of various organic and inorganic nutrient sources on rice yield and soil quality in west coast India using suitable indexing techniques
Not Available
 
Creator Mahajan GR
Manjunath BL
Morajkar S
Desai A
Das B
Paramesh V
 
Subject Alfisols
Minimum data set
Nutrient management
Soil quality index
Sustainability
 
Description Not Available
Soil quality (SQ) under any agriculture system is greatly influenced by source of nutrients, type of soil, crop, and their management practices. In this regard, a field experiment was conducted under lowland rice production system for 5 years to assess the effect of nutrient management with organic and inorganic nutrient on soil quality. The nutrient management practices studied were: FYM: farmyard manure (10 t ha−1), Verm: vermicompost (5 t ha−1), GE: Gliricidia and Eupatorium (each 5 t ha−1), PW: Paddy straw and water hyacinth (each 5 t ha−1), SR: Dhaincha (10 t ha−1), RDF-NPK: recommended dose of fertilizers (100:50:50 NPK kg ha−1), and control. The effect of different nutrient management practices on the soil properties, grain yield, sustainable yield index, and soil quality index were evaluated. The nutrient
management practices affected the soil properties, rice grain yield, and sustainable yield index significantly. Phosphatase activity, soil organic carbon, microbial biomass carbon, available phosphorus, and nitrogen were selected for minimum data set using principal component analysis. Their
corresponding average contribution to the soil quality index was 70.7, 7.92, 8.67, 1.69, and 10.9%, respectively. The soil quality index obtained by integrating the minimum data set and employing non-linear scoring function varied from 0.72 (SR) to 0.99 (FYM) and it was minimum in the control (0.68).
The FYM improved the SQ by 28.5 and 45.5% over RDF-NPK and control, respectively. Using organic sources of nutrients under transplanted rice improves the soil quality and sustainability by improving plant growth and soil functions.
Indian Council of Agricultural Research
 
Date 2021-07-28T05:25:52Z
2021-07-28T05:25:52Z
2021-03-25
 
Type Journal
 
Identifier Mahajan GR, Manjunath BL, Morajkar S, Desai A, Das B, Paramesh V (2021). Long-term effect of various organic and inorganic nutrient sources on rice yield and soil quality in west coast India using suitable indexing techniques. Communications in Soil Science and Plant Analysis, DOI: 10.1080/00103624.2021.1900221
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http://krishi.icar.gov.in/jspui/handle/123456789/50435
 
Language English
 
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Publisher Not Available