Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.

Soil quality is the basis for the development of sustainable agriculture and may be used for evaluating the sustainability of soil management practices. Soil quality status and integrated soil quality index (SQI) in sampled 97 farmlands distributed in 7 barley agro-ecological areas of China were ana...

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Main Authors: Yu Zhou, Yingcheng Fan, Guang Lu, Anyong Zhang, Ting Zhao, Genlou Sun, Daokun Sun, Qi Yu, Xifeng Ren
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0261638&type=printable
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author Yu Zhou
Yingcheng Fan
Guang Lu
Anyong Zhang
Ting Zhao
Genlou Sun
Daokun Sun
Qi Yu
Xifeng Ren
author_facet Yu Zhou
Yingcheng Fan
Guang Lu
Anyong Zhang
Ting Zhao
Genlou Sun
Daokun Sun
Qi Yu
Xifeng Ren
author_sort Yu Zhou
collection DOAJ
description Soil quality is the basis for the development of sustainable agriculture and may be used for evaluating the sustainability of soil management practices. Soil quality status and integrated soil quality index (SQI) in sampled 97 farmlands distributed in 7 barley agro-ecological areas of China were analyzed by using 13 soil chemical parameters. The results showed six principal components totally explained 72% variability for the 13 parameters and identified 9 parameters (includes pH, NH4+-N, NO3--N, available P, available K, exchangeable Mg, DTPA-Fe, DTPA-Cu and Cl-) with high factor loading values as the minimum data set (MDS) for assessing soil quality. Average soil quality of all farmlands is moderate (SQI = 0.62). The SQI of barley farmlands in 7 agro-ecological areas showed the following order: Inner Mongolia Plateau (0.75 ± 0.02) > Yunnan-Kweichow Plateau (0.72 ± 0.06) > Qinghai-Tibet Plateau (0.63 ± 0.08) > Yangtze Plain (0.62 ± 0.10) > Huanghuai Region (0.58 ± 0.09) > Northeast China Plain (0.56 ± 0.07) > Xinjiang Province (0.54 ± 0.07). Total 29 out of 97 farmlands in 7 areas have low SQI level (< 0.55). Hence, these farmlands require urgent attention for soil quality improvement through modification of the soil parameters in the MDS.
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spelling doaj-art-e3614259e4be4c5f9568c63fcbae702f2025-08-20T03:15:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01171e026163810.1371/journal.pone.0261638Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.Yu ZhouYingcheng FanGuang LuAnyong ZhangTing ZhaoGenlou SunDaokun SunQi YuXifeng RenSoil quality is the basis for the development of sustainable agriculture and may be used for evaluating the sustainability of soil management practices. Soil quality status and integrated soil quality index (SQI) in sampled 97 farmlands distributed in 7 barley agro-ecological areas of China were analyzed by using 13 soil chemical parameters. The results showed six principal components totally explained 72% variability for the 13 parameters and identified 9 parameters (includes pH, NH4+-N, NO3--N, available P, available K, exchangeable Mg, DTPA-Fe, DTPA-Cu and Cl-) with high factor loading values as the minimum data set (MDS) for assessing soil quality. Average soil quality of all farmlands is moderate (SQI = 0.62). The SQI of barley farmlands in 7 agro-ecological areas showed the following order: Inner Mongolia Plateau (0.75 ± 0.02) > Yunnan-Kweichow Plateau (0.72 ± 0.06) > Qinghai-Tibet Plateau (0.63 ± 0.08) > Yangtze Plain (0.62 ± 0.10) > Huanghuai Region (0.58 ± 0.09) > Northeast China Plain (0.56 ± 0.07) > Xinjiang Province (0.54 ± 0.07). Total 29 out of 97 farmlands in 7 areas have low SQI level (< 0.55). Hence, these farmlands require urgent attention for soil quality improvement through modification of the soil parameters in the MDS.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0261638&type=printable
spellingShingle Yu Zhou
Yingcheng Fan
Guang Lu
Anyong Zhang
Ting Zhao
Genlou Sun
Daokun Sun
Qi Yu
Xifeng Ren
Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.
PLoS ONE
title Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.
title_full Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.
title_fullStr Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.
title_full_unstemmed Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.
title_short Assessment of soil quality for guided fertilization in 7 barley agro-ecological areas of China.
title_sort assessment of soil quality for guided fertilization in 7 barley agro ecological areas of china
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0261638&type=printable
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