大洋芽孢杆菌HMF13(耐盐促生主力)
· 降盐碱:分泌有机酸中和碱度,吸附/外排Na,降低土壤含盐量与pH。
· 强根抗寒:产IAA、铁载体等,促根系发育;诱导脯氨酸等渗透调节物质积累,提升细胞抗冻性,减少低温伤害。
· 养分活化:解磷、固氮,提高土壤氮磷有效性,保障旱碱麦养分供给。
胶冻样类芽孢杆菌(改土促长核心)
· 改土提肥:分泌胞外多糖改善团粒结构,降容重提孔隙度;溶磷释钾并释放中微量元素,提升保水保肥能力。
· 抗寒增产:产赤霉素、吲哚乙酸等,增叶绿素16-18%,增强光合作用;促壮苗,提升抗寒/抗旱/抗病能力,平均增产约10%。
· 抑菌护根:形成根际优势菌群,抑制土传病害,减少死苗。
协同增效:前者主攻耐盐降碱+抗寒生理调节,后者主攻土壤结构改良+养分活化+系统促生,叠加后改土与抗逆效果显著优于单菌。
Bacillus oceanisediminis HMF13 (Strain Dominant in Salt Tolerance and Growth Promotion)
- Salinity and alkalinity reduction: Secretes organic acids to neutralize alkalinity, adsorbs and expels sodium ions, and reduces soil salt content and pH value.
- Root strengthening and cold resistance: Produces IAA, siderophores and other metabolites to promote root development; induces the accumulation of osmotic regulatory substances such as proline, improves cellular freezing tolerance and reduces low-temperature damage.
- Nutrient activation: Dissolves phosphorus and fixes nitrogen, improves the availability of soil nitrogen and phosphorus, and ensures nutrient supply for wheat grown in saline-alkali and drought land.
Paenibacillus mucilaginosus (Core Strain for Soil Improvement and Growth Promotion)
- Soil improvement and fertilizer efficiency enhancement: Secretes extracellular polysaccharides to optimize soil aggregate structure, reduce bulk density and increase porosity; dissolves phosphorus and releases potassium, as well as releases medium and trace elements, so as to improve soil water and fertilizer retention capacity.
- Cold resistance and yield increase: Produces gibberellin, indoleacetic acid and other growth regulators, increases chlorophyll content by 16-18% and enhances photosynthesis; promotes robust seedling growth, improves cold resistance, drought resistance and disease resistance, with an average yield increase of about 10%.
- Bacteriostasis and root protection: Dominates the rhizosphere microflora, inhibits soil-borne diseases and reduces seedling death.
Synergistic Effect
Bacillus oceanisediminis HMF13 focuses on salt tolerance, alkalinity reduction and cold resistance physiological regulation, while Paenibacillus mucilaginosus focuses on soil structure improvement, nutrient activation and systematic growth promotion. The combined effect on soil improvement and stress resistance is significantly superior to single strain application.