Agronomic Practices Alter Regulated Effects of Easily Extractable Glomalin-Related Soil Protein on Fruit Quality and Soil Properties of Satsuma Mandarin

Easily extractable glomalin-related soil protein (EEG) released from arbuscular mycorrhizal fungi exhibits many roles in and plants, while it is not clear whether the biostimulator alone or combination with agronomic practices can improve characteristics fruit quality citrus. The objective of this study was to analyze effects foliar sprays EEG, singly bagging (FB), reflective film mulching (RF), grass-proof cloth (GPC) on root colonization rate, internal external quality, structure fertility an early-ripening Satsuma mandarin “Oita 4” (Citrus unshiu cv. Oita 4). Exogenous EEG application increased colonization, dramatically inhibited EEG-treated trees. Foliar significantly improved fruits, but three did further enlarge effect even produced inhibitory effect. Also, addition RF amplified contents vitamin C soluble solids. also elevated sucrose pith juice sac, fructose peel, pith, segment membrane, glucose sac. Additional treatment could increase peel sac as well varying degrees organic carbon, mean weight diameter, nitrate nitrogen, ammonium available phosphorus, potassium levels, additional almost reducing promoting these variables. It has been summarized that a single had positive fertility, resulted little change suppressed EEG.