Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 67, Issue 38, Pages 10577-10586Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.9b03124
Keywords
phosphorus; irrigation; water; microbial community; soil acid phosphatase; Oryza sativa L
Funding
- National Key Rand D Program of China [2017YFE0118100, 2018YFD02003025]
- National Natural Science Foundation of China [31761130073, 31872169, 31901428]
- Newton Advanced Fellowship [NSFC-RS: NA160430]
- Fujian Province Education Department Funding [JK2017015]
- FAFU [KXGH17005]
- China Postdoctoral Science Foundation [2018M632563]
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Root and rhizosphere is important for phosphorus (P) uptake in rice plants. However, little is known about the detailed regulation of irrigation regimes, especially frequently alternate wetting and drying (FAWD), on P usage of rice plants. Here, we found that compared with normal water and P dose, FAWD with a reduced P dose maintained the grain yield in two rice varieties. Compared to rice variety Gaoshanl, rice variety WufengyouT025 displayed a higher grain yield, shoot P content, rhizosphere acid phosphatase activity, abundance of bacteria, and bacterial acid phosphatase gene of rhizosphere. Moreover, the FAWD regime may increase the abundance of bacteria with acid phosphatase activity to release available phosphorus in the rhizosphere, which is associated with rice varieties. Our results suggest that an optimized management of irrigation and phosphorous application can enhance both water and phosphorus use efficiency without sacrificing the yield, which may contribute significantly to sustainable agriculture production.
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