The integrated effect of salinity, organic amendments, phosphorus fertilizers, and deficit irrigation on soil properties, phosphorus fractionation and wheat productivity
文献类型： 外文期刊
作者： Ding, Zheli 1 ; Kheir, Ahmed M. S. 1 ; Ali, Marwa G. M. 2 ; Ali, Osama A. M. 3 ; Abdelaal, Aly I. N. 2 ; Lin, Xin'e 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci CATAS, Laikou Expt Stn, Haikou, Hainan, Peoples R China
2.Agr Res Ctr, Soils Water & Environm Res Inst, Giza, Egypt
3.Menoufia Univ, Fac Agr, Crop Sci Dept, Shibin Al Kawm, Egypt
4.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Environm Impact Assessment & Risk Anal Ctr, Haikou, Hainan, Peoples R China
5.Univ Florida, Indian River Res & Educ Ctr, Inst Food & Agr Sci, Ft Pierce, FL 34945 USA
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2020 年 10 卷 1 期
页码：
收录情况： SCI
摘要： 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.
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