The integrated effect of salinity, organic amendments, phosphorus fertilizers, and deficit irrigation on soil properties, phosphorus fractionation and wheat productivity

The integrated effect of salinity, organic amendments, phosphorus fertilizers, and deficit irrigation on soil properties, phosphorus fractionation and wheat productivity

Soil degradation due to global warming, water scarcity and diminishing natural resources negatively impacts food security. Soil fertility deterioration, particularly phosphorus (P) deficiency, remains a challenge in the arid and semi-arid regions. In this study, field experiments were conducted in d...

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Bibliographic Details
Published in:Scientific reports Vol. 10; no. 1; p. 2736
Main Authors: Ding, Zheli, Kheir, Ahmed M. S., Ali, Marwa G. M., Ali, Osama A. M., Abdelaal, Aly I. N., Lin, Xin’e, Zhou, Zhaoxi, Wang, Bizun, Liu, Beibei, He, Zhenli
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 17-02-2020
Nature Publishing Group
Subjects:
631/449
704/172
704/2151
Arid zones
Chemical properties
Climate change
Crop production
Fertilization
Fertilizers
Field tests
Food security
Fractionation
Global warming
Humanities and Social Sciences
Irrigation
Lead
multidisciplinary
Natural resources
Organic matter
Organic phosphorus
Organic soils
Phosphorus
Salinity
Salinity effects
Science
Science (multidisciplinary)
Semiarid lands
Soil degradation
Soil density
Soil fertility
Soil properties
Soil salinity
Water scarcity
Wheat
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Summary:Soil degradation due to global warming, water scarcity and diminishing natural resources negatively impacts food security. Soil fertility deterioration, particularly phosphorus (P) deficiency, remains a challenge in the arid and semi-arid regions. In this study, field experiments were conducted in different geographical locations to investigate the effects of organic amendments coupled with P fertilization and irrigation on soil physical-chemical properties, and the growth, yield and quality of wheat. Application of P fertilizers combined with organic amendments mitigated soil salinity, increased organic matter content, available water, hydraulic conductivity and available macronutrients, but decreased soil bulk density. Application of organic amendments slightly increased total Cd, Ni and Pb in soil, but Cd and Ni concentration was below allowable limits whilst Pb reached a hazardous level. Soil P fractions were significantly increased with the combined application of mineral P and organic amendments irrespective of salinity and irrigation. Crop growth yield and quality of wheat improved significantly in response to the integrated application of mineral P and organic amendments. In conclusion, the combination of mineral P sources with organic amendments could be successfully used as a cost-effective management practice to enhance soil fertility and crop production in the arid and semi-arid regions stressed with water scarcity and natural resource constraints.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-59650-8