Improving the efficiency of phosphate rocks combined with phosphate solubilizing Actinomycetota to increase wheat growth under alkaline and acidic soils

Frontiers in Plant Science

Plant Science

Lamfeddal Kouisni¹  Abdoulaye Soumare²  Yedir Ouhdouch³  Kenza Boubekri³  Karim Lyamlouli³  Mohamed Hafidi³ 

[1] African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune, Morocco;AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco;Laboratory of Agroforestry and Ecology, Assane Seck University (UASZ-UFR ST), Ziguinchor, Senegal;AgroBioSciences Department (AgBS), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco;Laboratory of Microbial Biotechnologies Agrosciences and Environment (BioMAgE), Labelled Unit CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University (UCA), Marrakech, Morocco;

关键词: Actinomycetota;    rock phosphate;    wheat plant growth;    acid and alkaline soil;    nutrient uptake;   

DOI  :  10.3389/fpls.2023.1154372

 received in 2023-01-31, accepted in 2023-04-14,  发布年份 2023

来源: Frontiers

【 摘 要 】

Low availability of phosphorus (P) in both acidic and alkaline soils is a major problem for sustainable improvement in wheat crops yield. Optimization of crops productivity can be achieved by increasing the bioavailability of P by phosphate solubilizing Actinomycetota (PSA). However, their effectiveness may vary with changing agro-climatic conditions. In this regard, a greenhouse experiment was conducted to assess the interaction inoculation of five potential PSA (P16-P18-BC3-BC10 and BC11) and RPs (RP1- RP2-RP3 and RP4) on the growth and yield of wheat crop in unsterilized P- deficient alkaline and acidic soils. Their performance was compared with single super phosphate (TSP) and reactive RP (BG4). The in-vitro tests showed that all PSA colonize wheat root and form a strong biofilm except Streptomyces anulatus strain P16. Our findings revealed that all PSA significantly improve the shoot/root dry weights, spike biomass, chlorophyll contents as well as nutrients uptake in plants fertilized with RP3 and RP4. However, the combined application of Nocardiopsis alba BC11 along with RP4 in alkaline soil, was effective in optimizing wheat yield attributes and improve the yield biomass up to 19.7% as compared to the triple superphosphate (TSP). This study supports the view that the inoculation with Nocardiopsis alba BC11 has a broad RP solubilization and could alleviate the agricultural losses due to P limitation in acidic and alkaline soils.

【 授权许可】

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Copyright © 2023 Boubekri, Soumare, Lyamlouli, Ouhdouch, Hafidi and Kouisni