Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 67, Issue 1, Pages 32-42Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.8b05288
Keywords
arbuscular mycorrhizal fungi; nutrients remobilization; nutrients uptake; phosphorus; plant nutrition; source-sink; seed-filling stage
Funding
- National Science Foundation for Young Scientists of China [31601825, 41807099]
- National Key Research and Development Program of China [2018YFD0800205]
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We tested whether introducing an arbuscular mycorrhizal fungi (AMF)-host plant with a reduced P application rate could maintain soybean seeds' nutrient quality. The dynamic variation of 14 nutrients was analyzed in source and sink organs during the seed-filling stage. The AMF-host and non-AMF-host plants, sunflower and mustard, were grown as preceding crops (PCs). Soybeans, the succeeding crops, were planted with three different phosphorus levels, namely, 0, 50, and 150 kg P2O5 ha(-1). The results showed that the AMF-host PC with a reduced P application rate maintained the seeds yield and nutrients quality. During the seed-filling stage, the AMF-host PC with a reduced P application rate increased the uptake of most nutrients compared to the non-AMF-host PC, and improved the remobilization efficiency of all nutrients except Mn, Fe, and Se, compared to the optimal P application rate. These results could help improve the utilization efficiency of P fertilizers and protect soybeans' nutritional value.
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