Aims Phosphorus (P) is a finite resource and inoculation of phosphorus‐mobilizing bacteria (PMB) is a promising approach for the enhancement of soil P availability and plant P uptake. This drives scientists to search for the microbes effective in mobilizing legacy P in soils. Methods and Results The current incubation and greenhouse pot experiments were conducted to investigate P mobilization and pepper P uptake as affected by a new biocontrol and bioremediation bacterium Burkholderia cepacia CQ18. This bacterium converted Ca₃(PO₄)₂, FePO₄, AlPO₄, and lecithin into soluble inorganic P in the culture solutions and increased available P (including water‐soluble P and Olsen P) in the soil. There were positive correlations between the soluble inorganic phosphorus and the exudates (protons, organic acids (oxalate and gluconate), siderophores and phosphatases) in culture solutions. Pepper plant biomass, fruit yield and P uptake changed in the sequence: chemical fertilizers plus bacterial inoculant > only chemical fertilizers > only bacterial inoculant > blank control. Conclusions Taking into account the wide spectrums of P mobilization and simultaneous production of acid, neutral and alkaline phosphatases at a given pH, B. cepacia CQ18 may be a potential PMB used in soils with wide pH ranges. The mechanisms employed by this bacterium in the solubilization of recalcitrant inorganic P could be the efflux of protons, organic acids (oxalate and gluconate) and siderophores. Phosphatases could be of utmost importance in the mineralization of the organic P. The production of siderophores and phosphatases by of B. cepacia CQ18 could thus be crucial for not only the antagonism against plant pathogens but also the mobilization of soil sparingly available P. Significance and Impact of Study B. cepacia CQ18 could be potentially developed into a biofertilizer.

This field experiment aimed to investigate the effects of different ratios of organic and inorganic fertilizers with maintaining equal nitrogen application rates on the yield, quality, and nitrogen uptake efficiency of Dioscorea polystachya (yam). Six treatments were set, including a control without fertilizer (CK), sole application of chemical fertilizer (CF), sole application of organic fertilizer (OM), 25% organic fertilizer + 75% chemical fertilizer (25%OM + 75%CF), 50% organic fertilizer + 50% chemical fertilizer (50%OM + 50%CF), and 75% organic fertilizer + 25% chemical fertilizer (75%OM + 25%CF). The experiment followed a randomized complete block design with three replications. Various yield parameters, morphology, quality indicators, and nitrogen utilization were analyzed to assess the differences among treatments. The results indicated that all fertilizer treatments significantly increased the yield, morphology, quality indicators, and nitrogen utilization efficiency compared to the control. Specifically, 25%OM + 75%CF achieved the highest yield of 31.96 t hm^-2, which was not significantly different from CF (30.18 t hm^-2). 25%OM + 75%CF exhibited the highest values at 69.23 cm in tuber length and 75.86% in commodity rate, 3.14% and 1.57% higher than CF respectively. Tuber thickness and fresh weight of 25%OM + 75%CF showed no significant differences from CF, while OM and 50%OM+50%CF exhibited varying degrees of reduction compared to CF. Applying fertilizer significantly enhanced total sugar, starch, crude protein, total amino acid, and ash contents of D. polystachya (except ash content between CK and OM). Applying organic fertilizer increased the total sugar, starch, crude protein, total amino acid, and ash contents in varying degrees when compared with CF. The treatment with 25%OM+75%CF exhibited the highest increases of 6.31%, 3.78%, 18.40%, 29.70%, and 10%, respectively. Nitrogen content in different plant parts followed the sequence of tuber > leaves > stems > aerial stem, with the highest nitrogen accumulation observed in 25%OM + 75%CF treatment. Nitrogen harvest index did not show significant differences among treatments, fluctuating between 0.69 and 0.74. The nitrogen apparent utilization efficiency was highest in 25%OM + 75%CF (9.89%), followed by CF (9.09%), both significantly higher than OM (5.32%) and 50%OM + 50%CF (6.69%). The nitrogen agronomic efficiency varied significantly among treatments, with 25%OM + 75%CF (33.93 kg kg^-1) being the highest, followed by CF (29.68 kg kg^-1), 50%OM + 50%CF (21.82 kg kg^-1), and OM (11.85 kg kg^-1). Nitrogen partial factor productivity was highest in 25%OM + 75%CF treatment (76.37 kg kg^-1), followed by CF (72.11 kg kg^-1), both significantly higher than 50%OM + 50%CF (64.25 kg kg^-1) and OM (54.29 kg kg^-1), with OM exhibiting significantly lower values compared to other treatments. In conclusion, the combined application of organic and inorganic fertilizers can effectively enhance the yield, quality, and nitrogen utilization efficiency of D. polystachya. Particularly, the treatment with 25% organic fertilizer and 75% chemical fertilizer showed the most promising results.

How financial literacy (FL) can contribute to both digital entrepreneurship (DE) willingness and behavior has become a widely concerned and controversial topic among scholars and practitioners, one that is particularly relevant for bottom of pyramid (BOP) entrepreneurs. However, existing literature has not established a systematic theoretical framework for this issue, and its internal mechanism has not been thoroughly revealed. Hence, based on behavioral finance theory and digital business-related literature, we construct a multi-layer linear and mediated-moderation model that relates latent variables of FL, financial inclusion (FI), digital literacy (DL), and DE. A total of 664 villagers carrying out DE are the sample from China, and the empirical results mainly reveal the following: FL significantly improves the DE willingness and behavior, and the sense of FI plays a partial mediating role between FL and DE willingness and behavior. DL is a crucial influencing factor that moderates a positive effect between FL and DE willingness and behavior. Moreover, DL plays a mediated-moderating role. By contrast, FL in poverty-stricken counties (PSC) has a more substantial influence on DE than that in non-poverty-stricken counties (NPSC). If the family background (social capital) is superior (excellent), and the resources are abundant, then the influence of FL on DE will be stronger. This research contributes to the theories and practices related to FL, DE, FI, and DL.

Ageratina adenophoraoriginating from central America has flooded forests, pastures, and farmland in more than 40 tropical and subtropical countries, causing huge ecological disasters and economic losses. In this paper, we intended to use a complex inoculum composed ofPseudomonas putitaandClostridium thermocellumtoin-situcompostA.adenophoradebris and then to compare the phytotoxicity of extracts from uncomposted and compostedA.adenophora(UCA and CA respectively) to barley seed germination and young seedling growth. A field experiment was finally conducted to reveal the effects of UCA and CA on barley nutrients uptake, yield, grain quality, soil enzyme activities, microbial biomass and biodiversity.In-situcomposting sharply decreased 4,7-dimethyl-1-(propan-2-ylidene)-1,4,4a,8a-tetrahydronaphthalene- 2,6(1H,7H)-dione(DTD) and 6-hydroxy-5-isopropyl-3,8-dimethyl-4a,5,6,7,8,8a-hexahydronaphthal en-2(1 H)-one(HHO) from 2096.3 and 743.7 mg kg^-1in uncompostedA.adenophorato 194.4 and 68.19 mg kg^-1in compostedA.adenophora. UCAE showed negative influences on seed germination performances (except lower rates on germination percentage). The mechanism may be the inhibition of bio-macromolecules hydrolysis (including proteins, starch, and phytin) in endosperms and their hydrolysates for forming new plants. CAE promoted seed germination and seedling growth, increased chlorophyll levels in leaves, and stimulated dehydrogenase and nitrate reductase activities in plants, while UCAE got opposite performance. Compared with chemical fertilizers, application of CA in combination with chemical fertilizers significantly improved plant nutrient uptake (nitrogen, phosphorus, and potassium), yield, grain quality, quantity of 16S rDNA sequences, richness and diversity of bacterial communities in contrast to UCA which behaved otherwise. Taken together, the use of the microbial agent toin-situcompostA.adenophoramay be an effective approach for agricultural use ofA.adenophoradebris as a plant-friendly organic fertilizer, being undoubtedly worth advocating.

Optimal potassium (K) fertilizer application in potato cropping systems can effectively increase food production and mitigate soil microbial ecosystem stress. The dynamics and sustainability of potato yield, the dynamics of potato commodity rates (CRs), and microbial community structure were explored under four different K application rates (kg K ha⁻¹ year⁻¹): 0 (control), 75 (low K), 150 (medium K), and 225 (high K). Compared with the low-K application, the medium-K and high-K applications increased potato yields by 8.08% and 11.66%, respectively. The mean CR of potato tubers during 4 years was significantly greater under the medium-K treatment than under the low-K and high-K treatments. Both medium-K and high-K applications significantly enhanced the sustainable yield index (SYI) relative to the Low-K application by 7.93% and 9.34%, respectively. Compared with the zero-K, low-K, and high-K treatments, the medium-K treatment improved the total phospholipid fatty acid (PLFA) contents by 11.91%, 16.84%, and 11.66%, respectively. Moreover, the medium-K application increased the bacterial PFLA, actinomycete PFLA, gram-positive (G⁺) bacterial PFLA, and gram-negative (G⁻) bacterial PFLA contents in the soil. Overall, application of 150 kg ha⁻¹ year⁻¹ K fertilizer represents a promising fertilization strategy in potato cropping systems in Southwest China.