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Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field

Groundwater and nitrogen fertilizer overuse severely threatens crop productions; thus, current ecological agriculture requires low irrigation and nitrogen fertilizer inputs. The effects of combined reduced irrigation and nitrogen fertilizer addition on soil organism (e.g., mite) community and biodiv...

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Autores principales: Zheng, Chunyan, Ouyang, Fang, Liu, Xianghui, Ma, Junhua, Zhao, Fenghua, Ouyang, Zhu, Ge, Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6802016/
https://www.ncbi.nlm.nih.gov/pubmed/31641479
http://dx.doi.org/10.1002/ece3.5638
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author Zheng, Chunyan
Ouyang, Fang
Liu, Xianghui
Ma, Junhua
Zhao, Fenghua
Ouyang, Zhu
Ge, Feng
author_facet Zheng, Chunyan
Ouyang, Fang
Liu, Xianghui
Ma, Junhua
Zhao, Fenghua
Ouyang, Zhu
Ge, Feng
author_sort Zheng, Chunyan
collection PubMed
description Groundwater and nitrogen fertilizer overuse severely threatens crop productions; thus, current ecological agriculture requires low irrigation and nitrogen fertilizer inputs. The effects of combined reduced irrigation and nitrogen fertilizer addition on soil organism (e.g., mite) community and biodiversity remain poorly understood. We analyzed soil mite community composition, wheat grain yield, and soil characteristics in a 10‐year manipulation experiment with two levels of irrigation (reduced and conventional irrigation) and five nitrogen fertilizer levels (0, 70, 140, 210, and 280 kg N/ha). Reduced irrigation (20% reduction, from 280 to 220 mm) and nitrogen fertilizer (25% reduction, from 280 to 210 kg N/ha) addition did not significantly influence soil mite community and wheat yield. The relative abundances of fungivores and predators showed negative quadratic relationships with wheat yield, while that of plant parasites showed a positive relationship. The relationships between soil mite trophic groups and wheat yield revealed that we can evaluate the impacts of reduced irrigation and nitrogen fertilizer addition from the perspective of soil fauna. Soil mite community composition was altered by soil abiotic factors prior to reduced irrigation and nitrogen fertilizer addition. Overall, moderate reductions of irrigation and nitrogen fertilizer may not threaten to soil mite community and diversity or decrease crop production; in contrast, such reductions will benefit mite community development and the sustainable agriculture.
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spelling pubmed-68020162019-10-22 Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field Zheng, Chunyan Ouyang, Fang Liu, Xianghui Ma, Junhua Zhao, Fenghua Ouyang, Zhu Ge, Feng Ecol Evol Original Research Groundwater and nitrogen fertilizer overuse severely threatens crop productions; thus, current ecological agriculture requires low irrigation and nitrogen fertilizer inputs. The effects of combined reduced irrigation and nitrogen fertilizer addition on soil organism (e.g., mite) community and biodiversity remain poorly understood. We analyzed soil mite community composition, wheat grain yield, and soil characteristics in a 10‐year manipulation experiment with two levels of irrigation (reduced and conventional irrigation) and five nitrogen fertilizer levels (0, 70, 140, 210, and 280 kg N/ha). Reduced irrigation (20% reduction, from 280 to 220 mm) and nitrogen fertilizer (25% reduction, from 280 to 210 kg N/ha) addition did not significantly influence soil mite community and wheat yield. The relative abundances of fungivores and predators showed negative quadratic relationships with wheat yield, while that of plant parasites showed a positive relationship. The relationships between soil mite trophic groups and wheat yield revealed that we can evaluate the impacts of reduced irrigation and nitrogen fertilizer addition from the perspective of soil fauna. Soil mite community composition was altered by soil abiotic factors prior to reduced irrigation and nitrogen fertilizer addition. Overall, moderate reductions of irrigation and nitrogen fertilizer may not threaten to soil mite community and diversity or decrease crop production; in contrast, such reductions will benefit mite community development and the sustainable agriculture. John Wiley and Sons Inc. 2019-09-18 /pmc/articles/PMC6802016/ /pubmed/31641479 http://dx.doi.org/10.1002/ece3.5638 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Zheng, Chunyan
Ouyang, Fang
Liu, Xianghui
Ma, Junhua
Zhao, Fenghua
Ouyang, Zhu
Ge, Feng
Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
title Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
title_full Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
title_fullStr Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
title_full_unstemmed Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
title_short Effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
title_sort effect of coupled reduced irrigation and nitrogen fertilizer on soil mite community composition in a wheat field
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6802016/
https://www.ncbi.nlm.nih.gov/pubmed/31641479
http://dx.doi.org/10.1002/ece3.5638
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