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http://krishi.icar.gov.in/jspui/handle/123456789/82587
Title: | Impact of Elevated CO2 on Soil–Plant Phosphorus Dynamics, Growth, and Yield of Chickpea (Cicer arietinum L.) in an Alkaline Vertisol of Central India |
Other Titles: | Not Available |
Authors: | Not Available |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | Indian Institute of Pulses Research |
Published/ Complete Date: | 2022-01-08 |
Project Code: | Not Available |
Keywords: | Aboveground P accumulation · Open-top chamber · Photosynthesis rate · Soil P pools · Soil enzymes activities · Subtropical climate |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | The increasing atmospheric [ CO2] would alter soil–plant nutrient dynamics depending on crop species, soil type, and climate. Insights on the impacts of the predicted level of elevated [ CO2] (e[CO2]) on the soil–plant-environment system are, therefore, important for strategic nutrient management for future environments. The impacts of e[CO2] environment on soil phosphorus (P) bioavailability and soil–plant P dynamics in chickpea are uncertain in tropical alkaline Vertisols. An open-top chamber–based experiment with e[CO2] (570 ± 30 ppmv) and ambient [ CO2] treatments aimed to investigate the impacts of e[CO2] on soil–plant P dynamics, physiology, and yield of chickpea in a moderately alkaline Vertisol of subtropical central India. Experimental findings revealed that the e[CO2] treatment increased Olsen P at flowering stage ( + 13%, p < 0.05), water-soluble carbon (11–14%), and KMnO4- C (5–14%) at both branching and flowering stages (p < 0.05). Results demonstrated that the increased mobilization of dissolved non-reactive P ( NaHCO3-Po, NaOH-Po) (from branching to flowering) and competitive sorption with higher soluble carbon possibly contributed to the higher available P (Olsen P) under the e[CO2] environment. The e[CO2] treatment had a significant impact on photosynthetic rate ( + 5.3%), stomatal conductance (− 16.5%), and leaf chlorophyll content ( + 5.1%) over the ambient (p < 0.05) but did not alter leaf nitrate reductase activity. The e[CO2] treatment increased plant biomass ( + 25%) and productivity ( + 11.6%), P uptake ( + 16.6%), and physiological P use efficiency ( + 7.1%) (p < 0.05). Thus, it can be concluded that e[CO2] (~ 570 ppmv) could enhance P availability in alkaline Vertisols of subtropical regions favoring P nutrition, physiological activity, and yield of chickpea. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Journal of Soil Science and Plant Nutrition |
NAAS Rating: | 9.8 |
Impact Factor: | 3.8 |
Volume No.: | Not Available |
Page Number: | Not Available |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/82587 |
Appears in Collections: | CS-IIPR-Publication |
Files in This Item:
File | Description | Size | Format | |
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abcd830a-1792-4616-9255-595d2067a1c1.pdf | 973.89 kB | Adobe PDF | View/Open |
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