Role of microbial inoculation and industrial by-product phosphogypsum in growth and nutrient uptake of maize (Zea maysL.) grown in calcareous soil
| Autor: | Adel Ra Usman, Saud S. Al-Oud, Fahad N. Al-Barakah, Abdul-Aziz R Al-Enazy |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Nutrition and Dietetics Chemistry 04 agricultural and veterinary sciences 010501 environmental sciences medicine.disease_cause 01 natural sciences Alkali soil Nutrient Agronomy Soil pH Shoot 040103 agronomy & agriculture medicine 0401 agriculture forestry and fisheries Azotobacter chroococcum Organic matter Agronomy and Crop Science Cow dung Calcareous 0105 earth and related environmental sciences Food Science Biotechnology |
| Zdroj: | Journal of the Science of Food and Agriculture. 97:3665-3674 |
| ISSN: | 0022-5142 |
| Popis: | Alkaline soils with high calcium carbonate and low organic matter are deficient in plant nutrient availability. Use of organic and bio-fertilizers has been suggested to improve their properties. Therefore, a greenhouse experiment was conducted to evaluate the integrative role of phosphogypsum (PG; added at 0.0, 10, 30, and 50 g PG kg-1 ), cow manure (CM; added at 50 g kg-1 ) and mixed microbial inoculation (Incl.; Azotobacter chroococcum, and phosphate-solubilizing bacteria Bacillus megaterium var. phosphaticum and Pseudomonas fluorescens) on growth and nutrients (N, P, K, Fe, Mn, Zn and Cu) uptake of maize (Zea mays L.) in calcareous soil. Treatment effects on soil chemical and biological properties and the Cd and Pb availability to maize plants were also investigated.; Results: Applying PG decreased soil pH. The soil available P increased when soil was inoculated and/or treated with CM, especially with PG. The total microbial count and dehydrogenase activity were enhanced with PG+CM+Incl.; Treatments: Inoculated soils treated with PG showed significant increases in NPK uptake and maize plant growth. However, the most investigated treatments showed significant decreases in shoot micronutrients. Cd and Pb were not detected in maize shoots.; Conclusions: Applying PG with microbial inoculation improved macronutrient uptake and plant growth. © 2017 Society of Chemical Industry.; © 2017 Society of Chemical Industry. |
| Databáze: | OpenAIRE |
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