Amendment with Burkina Faso phosphate rock-enriched composts alters soil chemical properties and microbial structure, and enhances sorghum agronomic performance.

Autor: Sagnon A; Laboratory of Molecular Biology, Epidemiology and Monitoring of Bacteria and Virus Transmitted by Food (LaBESTA), University Joseph KI-ZERBO, 03 BP 7021, Ouagadougou 03, Burkina Faso.; Laboratory of Virology and Plant Biotechnology, Institute of Environment and Agricultural Research (INERA), 01 BP 476, Ouagadougou 01, Burkina Faso., Iwasaki S; Rural Development Division, Japan International Research Center for Agricultural Sciences, Tsukuba, 305-8686, Japan., Tibiri EB; Laboratory of Virology and Plant Biotechnology, Institute of Environment and Agricultural Research (INERA), 01 BP 476, Ouagadougou 01, Burkina Faso., Zongo NA; Department of Natural Resources Management and Production Systems, Institute of Environment and Agricultural Research (INERA), 01 BP 476, Ouagadougou 01, Burkina Faso., Compaore E; Department of Natural Resources Management and Production Systems, Institute of Environment and Agricultural Research (INERA), 01 BP 476, Ouagadougou 01, Burkina Faso., Bonkoungou IJO; Laboratory of Molecular Biology, Epidemiology and Monitoring of Bacteria and Virus Transmitted by Food (LaBESTA), University Joseph KI-ZERBO, 03 BP 7021, Ouagadougou 03, Burkina Faso., Nakamura S; Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, 305-8686, Japan., Traore M; Department of Natural Resources Management and Production Systems, Institute of Environment and Agricultural Research (INERA), 01 BP 476, Ouagadougou 01, Burkina Faso., Barro N; Laboratory of Molecular Biology, Epidemiology and Monitoring of Bacteria and Virus Transmitted by Food (LaBESTA), University Joseph KI-ZERBO, 03 BP 7021, Ouagadougou 03, Burkina Faso., Tiendrebeogo F; Laboratory of Virology and Plant Biotechnology, Institute of Environment and Agricultural Research (INERA), 01 BP 476, Ouagadougou 01, Burkina Faso., Sarr PS; Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, 305-8686, Japan. saliou@affrc.go.jp.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2022 Aug 17; Vol. 12 (1), pp. 13945. Date of Electronic Publication: 2022 Aug 17.
DOI: 10.1038/s41598-022-18318-1
Abstrakt: Low soil available phosphorus (P) severely limits crop production in sub-Saharan Africa. The present study evaluated phosphate rock-enriched composts as locally available low-cost fertilizers for sorghum production. The treatments consisted of sorghum straw, compost (COMP), phosphate rock (BPR), BPR-enriched compost (P-COMP), BPR-rhizosphere soil-enriched compost (P-COMP-SOIL), nitrogen-phosphorus-potassium treatment (NPK, 60-39-25), and control (NK, 60-25). Sorghum straw and compost were applied at 1.34 tons ha -1 . N, P, and K in all treatments, excluding the control, were adjusted to 60, 39, and 25 kg ha -1 , with urea, BPR, and KCl, respectively. Sorghum vr. kapelga was cultivated and soil samples were collected at the S5, S8, and S9 growth stages. P-COMP-SOIL and NPK yielded better sorghum yields than the other treatments. The rhizosphere soil of P-COMP-SOIL had high abundance of soil bacteria and AMF, and genes involved in P solubilization, such as: acid phosphatase (aphA), phosphonatase (phnX), glucose dehydrogenase (gcd), pyrroloquinoline quinone (pqqE), phosphate-specific transporter (pstS). The superior performance of the P-COMP-SOIL was associated with its higher available P content and microbial abundance. Multivariate analysis also revealed vital contributions of N, carbon, and exchangeable cations to sorghum growth. Soils could be amended with phosphate rock-rhizosphere soil-enriched composts, as an alternative to chemical fertilizers.
(© 2022. The Author(s).)
Databáze: MEDLINE
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