PDF(Pubmed)
Abstract：
BACKGROUND: Soil salinity is one of the major menaces to food security, particularly in dealing with the food demand of the ever-increasing global population. Production of cereal crops such as wheat is severely affected by soil salinity and improper fertilization. The present study aimed to examine the effect of selected microbes and poultry manure (PM) on seedling emergence, physiology, nutrient uptake, and growth of wheat in saline soil. A pot experiment was carried out in research area of Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan. Saline soil (12 dS m- 1 w/w) was developed by spiking using sodium chloride, and used in experiment along with two microbial strains (i.e., Alcaligenes faecalis MH-2 and Achromobacter denitrificans MH-6) and PM. Finally, wheat seeds (variety Akbar-2019) were sown in amended and unamended soil, and pots were placed following a completely randomized design. The wheat crop was harvested after 140 days of sowing.
RESULTS: The results showed a 10-39% increase (compared to non-saline control) in agronomic, physiological, and nutritive attributes of wheat plants when augmented with PM and microbes. Microbes together with PM significantly enhanced seedling emergence (up to 38%), agronomic (up to 36%), and physiological (up to 33%) in saline soil as compared to their respective unamended control. Moreover, the co-use of microbes and PM also improved soil\'s physicochemical attributes and enhanced N (i.e., 21.7%-17.1%), P (i.e., 24.1-29.3%), and K (i.e., 28.7%-25.3%) availability to the plant (roots and shoots, respectively). Similarly, the co-use of amendments also lowered the Na+ contents in soil (i.e., up to 62%) as compared to unamended saline control. This is the first study reporting the effects of the co-addition of newly identified salt-tolerant bacterial strains and PM on seedling emergence, physiology, nutrient uptake, and growth of wheat in highly saline soil.
CONCLUSIONS: Our findings suggest that co-using a multi-trait bacterial culture and PM could be an appropriate option for sustainable crop production in salt-affected soil.
RESULTS: The results showed a 10-39% increase (compared to non-saline control) in agronomic, physiological, and nutritive attributes of wheat plants when augmented with PM and microbes. Microbes together with PM significantly enhanced seedling emergence (up to 38%), agronomic (up to 36%), and physiological (up to 33%) in saline soil as compared to their respective unamended control. Moreover, the co-use of microbes and PM also improved soil\'s physicochemical attributes and enhanced N (i.e., 21.7%-17.1%), P (i.e., 24.1-29.3%), and K (i.e., 28.7%-25.3%) availability to the plant (roots and shoots, respectively). Similarly, the co-use of amendments also lowered the Na+ contents in soil (i.e., up to 62%) as compared to unamended saline control. This is the first study reporting the effects of the co-addition of newly identified salt-tolerant bacterial strains and PM on seedling emergence, physiology, nutrient uptake, and growth of wheat in highly saline soil.
CONCLUSIONS: Our findings suggest that co-using a multi-trait bacterial culture and PM could be an appropriate option for sustainable crop production in salt-affected soil.
摘要：
背景：土壤盐分是粮食安全的主要威胁之一，特别是在应对不断增长的全球人口的粮食需求方面。小麦等谷类作物的生产受到土壤盐分和施肥不当的严重影响。本研究旨在研究选定的微生物和家禽粪便（PM）对幼苗出苗的影响，生理学,营养吸收，和小麦在盐碱土中的生长。在土壤与环境科学研究所的研究区进行了盆栽实验，农业大学,Faisalabad,巴基斯坦。盐渍土（12dSm-1w/w）是通过使用氯化钠加标形成的，并与两种微生物菌株一起用于实验(即，粪产碱菌MH-2和反硝化无色杆菌MH-6）和PM。最后,小麦种子（品种Akbar-2019）播种在改良和未改良的土壤中，并按照完全随机设计放置罐。在播种140天后收获小麦作物。
结果：结果表明，农艺性状增加了10-39％（与非盐水对照相比），生理,以及添加PM和微生物后小麦植株的营养属性。微生物与PM一起显着增强幼苗出苗（高达38％），农艺（高达36％），与各自未修正的对照相比，盐渍土壤中的生理含量（高达33％）。此外，微生物和PM的共同使用也改善了土壤的物理化学属性和增强的氮(即，21.7%-17.1%），P(即，24.1-29.3%)，和K(即，28.7%-25.3%)对植物的可用性(根和芽，分别)。同样，共同使用改良剂也降低了土壤中的Na+含量(即高达62%），与未修正的盐水对照相比。这是第一项研究报告了新鉴定的耐盐细菌菌株和PM共同添加对幼苗出苗的影响，生理学,营养吸收，和小麦在高盐渍土壤中的生长。
结论：我们的研究结果表明，在受盐影响的土壤中，共同使用多性状细菌培养和PM可能是可持续作物生产的适当选择。
结果：结果表明，农艺性状增加了10-39％（与非盐水对照相比），生理,以及添加PM和微生物后小麦植株的营养属性。微生物与PM一起显着增强幼苗出苗（高达38％），农艺（高达36％），与各自未修正的对照相比，盐渍土壤中的生理含量（高达33％）。此外，微生物和PM的共同使用也改善了土壤的物理化学属性和增强的氮(即，21.7%-17.1%），P(即，24.1-29.3%)，和K(即，28.7%-25.3%)对植物的可用性(根和芽，分别)。同样，共同使用改良剂也降低了土壤中的Na+含量(即高达62%），与未修正的盐水对照相比。这是第一项研究报告了新鉴定的耐盐细菌菌株和PM共同添加对幼苗出苗的影响，生理学,营养吸收，和小麦在高盐渍土壤中的生长。
结论：我们的研究结果表明，在受盐影响的土壤中，共同使用多性状细菌培养和PM可能是可持续作物生产的适当选择。
