肥料种类对西红花(Crocus sativus)球茎产量和品质的影响OA

Crocus sativus L.is a precious medicinal plant in the world,known as"red gold".However,corm degeneration has led to a year-by-year decline in its yield and quality.To investigate the effects of different fertilizers on the yield and quali-ty of C.sativus corms,as well as the relationships among soil physicochemical properties,microorganisms,and corms,four treatments were established in this experiment:sheep manure(YF),microbial fertilizer(JF),rapeseed cake(CZB),and bean curd residue(DFZ),with conventional fertilization as the control(CK).The results showed that com-pared with conventional fertilization,the bean curd residue treatment significantly increased the contents of soil total nitro-gen(TN),total phosphorus(TP),total potassium(TK),available nitrogen(AN),available phosphorus(AP),and soil organic matter(SOM).Treatments with sheep manure,microbial fertilizer,and bean curd residue improved the diver-sity of the soil bacterial community,among which Acidobacteria and Proteobacteria were the dominant phyla in all treat-ments.All fertilization treatments increased the average corm mass.Among them,the bean curd residue treatment produced the highest average corm mass(18.27 g)and the highest corm yield(1 299.87 g·m-2).In this treatment,75.72%of the corms had an average mass greater than 15 g,indicating the best quality.Correlation analysis showed that soil organic mat-ter was significantly positively correlated with C.sativus corm yield.The partial least squares path model(PLS-PM)re-vealed that soil organic matter and total nutrients were the most critical factors affecting corm yield and quality.Therefore,the application of bean curd residue has the best effect on improving the yield and quality of C.sativus corms.