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  4. THE EFFECT OF ORGANIC MATTER RECYCLING IN AGROECOSYSTEMS, FROM MOLECULAR TO GLOBAL SCALES

THE EFFECT OF ORGANIC MATTER RECYCLING IN AGROECOSYSTEMS, FROM MOLECULAR TO GLOBAL SCALES

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File(s)
Devault_cornellgrad_0058F_14615.pdf (5.36 MB)
No Access Until
2026-09-03
Permanent Link(s)
https://doi.org/10.7298/hq6f-qg80
https://hdl.handle.net/1813/116431
Collections
Cornell Theses and Dissertations
Author
Devault, Mariana
Abstract

The implementation of technologies that facilitate the recycling of wasted organic resources into added-value soil amendments can provide multiple benefits to crop production. One example is the use of pyrolysis (the thermal decomposition of matter in an inert atmosphere) to produce biochar, a material that can regulate the pH, increase nutrient availability, and improve microbial activity in soils. The research presented here investigates the ability of biochar to modulate intraspecific belowground plant-plant interaction by affecting the quality and abundance of root exudates, as well as the phenotypic plasticity of roots. In addition, this work provides insights on the physical potential of wasted livestock and human excreta recycling to compensate for nutrient shortages and minimize nutrient pollution in crop and grassland systems across the world.

Description
119 pages
Date Issued
2024-08
Keywords
Biochar
•
Excreta
•
Nutrient recycling
•
Plant belowground interactions
•
Rhizosphere
•
Root exudates
Committee Chair
Lehmann, Christopher
Committee Member
Bauerle, Taryn
Kessler, Andre
Degree Discipline
Soil and Crop Sciences
Degree Name
Ph. D., Soil and Crop Sciences
Degree Level
Doctor of Philosophy
Type
dissertation or thesis
Link(s) to Catalog Record
https://newcatalog.library.cornell.edu/catalog/16611912

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