Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis
Magnesium deficiency is a frequently occurring limiting factor for crop production due to low levels of exchangeable Mg (ex-Mg) in acidic soil, which negatively affects sustainability of agriculture development. How Mg fertilization affects crop yield and subsequent physiological outcomes in differe...
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doaj-750a90cfa6bb47a7b594b1a08ce13a5c2020-11-25T00:07:02ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2020-01-011010.3389/fpls.2019.01727495191Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-AnalysisZheng Wang0Zheng Wang1Zheng Wang2Mahmood Ul Hassan3Faisal Nadeem4Liangquan Wu5Fusuo Zhang6Fusuo Zhang7Fusuo Zhang8Xuexian Li9Xuexian Li10Department of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, ChinaNational Academy of Agriculture Green Development, China Agricultural University, Beijing, ChinaInternational Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, ChinaDepartment of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, ChinaDepartment of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, ChinaInternational Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, ChinaDepartment of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, ChinaNational Academy of Agriculture Green Development, China Agricultural University, Beijing, ChinaInternational Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou, ChinaDepartment of Plant Nutrition, The Key Plant-Soil Interaction Lab, MOE, China Agricultural University, Beijing, ChinaNational Academy of Agriculture Green Development, China Agricultural University, Beijing, ChinaMagnesium deficiency is a frequently occurring limiting factor for crop production due to low levels of exchangeable Mg (ex-Mg) in acidic soil, which negatively affects sustainability of agriculture development. How Mg fertilization affects crop yield and subsequent physiological outcomes in different crop species, as well as agronomic efficiencies of Mg fertilizers, under varying soil conditions remain particular interesting questions to be addressed. A meta-analysis was performed with 570 paired observations retrieved from 99 field research articles to compare effects of Mg fertilization on crop production and corresponding agronomic efficiencies in different production systems under varying soil conditions. The mean value of yield increase and agronomic efficiency derived from Mg application was 8.5% and 34.4 kg kg-1 respectively, when combining all yield measurements together, regardless of the crop type, soil condition, and other factors. Under severe Mg deficiency (ex-Mg < 60 mg kg-1), yield increased up to 9.4%, nearly two folds of yield gain (4.9%) in the soil containing more than 120 mg kg-1 ex-Mg. The effects of Mg fertilization on yield was 11.3% when soil pH was lower than 6.5. The agronomic efficiency of Mg fertilizers was negatively correlated with application levels of Mg, with 38.3 kg kg-1 at lower MgO levels (0–50 kg ha-1) and 32.6 kg kg-1 at higher MgO levels (50–100 kg ha-1). Clear interactions existed between soil ex-Mg, pH, and types and amount of Mg fertilizers in terms of crop yield increase. With Mg supplementation, Mg accumulation in the leaf tissues increased by 34.3% on average; and concentrations of sugar in edible organs were 5.5% higher compared to non-Mg supplemented treatments. Our analysis corroborated that Mg fertilization enhances crop performance by improving yield or resulting in favorable physiological outcomes, providing great potentials for integrated Mg management for higher crop yield and quality.https://www.frontiersin.org/article/10.3389/fpls.2019.01727/fullmagnesiumcrop yieldagronomic efficiencyexchangeable MgpHmeta-analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zheng Wang Zheng Wang Zheng Wang Mahmood Ul Hassan Faisal Nadeem Liangquan Wu Fusuo Zhang Fusuo Zhang Fusuo Zhang Xuexian Li Xuexian Li |
spellingShingle |
Zheng Wang Zheng Wang Zheng Wang Mahmood Ul Hassan Faisal Nadeem Liangquan Wu Fusuo Zhang Fusuo Zhang Fusuo Zhang Xuexian Li Xuexian Li Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis Frontiers in Plant Science magnesium crop yield agronomic efficiency exchangeable Mg pH meta-analysis |
author_facet |
Zheng Wang Zheng Wang Zheng Wang Mahmood Ul Hassan Faisal Nadeem Liangquan Wu Fusuo Zhang Fusuo Zhang Fusuo Zhang Xuexian Li Xuexian Li |
author_sort |
Zheng Wang |
title |
Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis |
title_short |
Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis |
title_full |
Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis |
title_fullStr |
Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis |
title_full_unstemmed |
Magnesium Fertilization Improves Crop Yield in Most Production Systems: A Meta-Analysis |
title_sort |
magnesium fertilization improves crop yield in most production systems: a meta-analysis |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Plant Science |
issn |
1664-462X |
publishDate |
2020-01-01 |
description |
Magnesium deficiency is a frequently occurring limiting factor for crop production due to low levels of exchangeable Mg (ex-Mg) in acidic soil, which negatively affects sustainability of agriculture development. How Mg fertilization affects crop yield and subsequent physiological outcomes in different crop species, as well as agronomic efficiencies of Mg fertilizers, under varying soil conditions remain particular interesting questions to be addressed. A meta-analysis was performed with 570 paired observations retrieved from 99 field research articles to compare effects of Mg fertilization on crop production and corresponding agronomic efficiencies in different production systems under varying soil conditions. The mean value of yield increase and agronomic efficiency derived from Mg application was 8.5% and 34.4 kg kg-1 respectively, when combining all yield measurements together, regardless of the crop type, soil condition, and other factors. Under severe Mg deficiency (ex-Mg < 60 mg kg-1), yield increased up to 9.4%, nearly two folds of yield gain (4.9%) in the soil containing more than 120 mg kg-1 ex-Mg. The effects of Mg fertilization on yield was 11.3% when soil pH was lower than 6.5. The agronomic efficiency of Mg fertilizers was negatively correlated with application levels of Mg, with 38.3 kg kg-1 at lower MgO levels (0–50 kg ha-1) and 32.6 kg kg-1 at higher MgO levels (50–100 kg ha-1). Clear interactions existed between soil ex-Mg, pH, and types and amount of Mg fertilizers in terms of crop yield increase. With Mg supplementation, Mg accumulation in the leaf tissues increased by 34.3% on average; and concentrations of sugar in edible organs were 5.5% higher compared to non-Mg supplemented treatments. Our analysis corroborated that Mg fertilization enhances crop performance by improving yield or resulting in favorable physiological outcomes, providing great potentials for integrated Mg management for higher crop yield and quality. |
topic |
magnesium crop yield agronomic efficiency exchangeable Mg pH meta-analysis |
url |
https://www.frontiersin.org/article/10.3389/fpls.2019.01727/full |
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