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Published on: March 26, 2019
Fertilization management reshapes plant-nematode interactions across global ecosystems
Xu Xu1, Valentyna Krashevska2, Zemin Zhao3
1Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China; JF Blumenbach Institute of Zoology and Anthropology, University of Göttingen 37073 Göttingen, Germany.
Organic fertilizers boost soil nematode populations and plant growth, especially in warmer regions. This research clarifies how fertilization strategies impact soil ecosystems and agricultural yields globally.
Area of Science:
- Agricultural Science
- Soil Ecology
- Nematology
Background:
- Understanding fertilization's impact on soil nematodes is key for sustainable agriculture and plant productivity.
- Global data on how different fertilizer types affect the nematode-plant productivity relationship is limited.
Purpose of the Study:
- To investigate if organic fertilization alters soil nematode community structure and function.
- To determine the relationship between these nematode changes and plant productivity.
Main Methods:
- A global meta-analysis of fertilization experiments was conducted.
- Machine learning-based predictions were integrated to analyze the data.
Main Results:
- Fertilizer type significantly influences nematodes and plant performance worldwide.
- Organic fertilizers increased nematode abundance, favored bacterivores, and enhanced plant productivity.
- Mineral fertilizers showed weaker positive effects, with herbivores negatively correlating with plant productivity.
- Warmer climates amplified the positive effects of bacterivores and organic fertilization on plant productivity.
Conclusions:
- Agricultural management practices, particularly fertilization, profoundly shape plant-nematode interactions.
- Soil nematodes play a crucial role in connecting fertilization strategies to ecosystem productivity.
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