Evaluating Biochar-Microbe Synergies for Improved Growth, Yield of Maize, and Post-Harvest Soil Characteristics in a Semi-Arid Climate

文献类型： 外文期刊

第一作者： Ahmad, Maqshoof

作者： Ahmad, Maqshoof;Luqman, Muhammad;Hussain, Azhar;Wang, Xiukang;Hilger, Thomas H.;Nazli, Farheen;Zahir, Zahir Ahmad;Latif, Muhammad;Saeed, Qudsia;Malik, Hina Ahmed;Mustafa, Adnan

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关键词： aridity; Bacillussp; biochar; nutrient availability; organic matter; soil health

期刊名称：AGRONOMY-BASEL （ 影响因子：3.417； 五年影响因子：3.64 ）

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年卷期： 2020 年 10 卷 7 期

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收录情况： SCI

摘要： Arid and semi-arid regions are characterized by high temperature and low rainfall, leading to degraded agricultural soils of alkaline calcareous nature with low organic matter contents. Less availability of indigenous nutrients and efficacy of applied fertilizers are the major issues of crop production in these soils. Biochar application, in combination with plant growth promoting rhizobacteria with the ability to solubilize nutrients, can be an effective strategy for improving soil health and nutrient availability to crops under these conditions. Experiments were planned to evaluate the impact of biochar obtained from different sources in combination with acid-producing, nutrient-solubilizingBacillussp. ZM20 on soil biological properties and growth of maize (Zea maysL.) crops under natural conditions. Various biochar treatments, viz. wheat (Triticum aestivumL.) straw biochar, Egyptian acacia (Vachellia niloticaL.) biochar, and farm-yard manure biochar with and withoutBacillussp. ZM20, were used along with control. Soil used for pot and field trials was sandy loam in texture with poor water holding capacity and deficient in nutrients. Results of the pot trial showed that fresh and dry biomass, 1000 grain weight, and grain yield was significantly improved by application of biochar of different sources with and withoutBacillussp. ZM20. Application of biochar along withBacillussp. ZM20 also improved soil biological properties, i.e., soil organic matter, microbial biomass carbon, ammonium, and nitrate nitrogen. It was also observed that a combined application of biochar withBacillussp. ZM20 was more effective than a separate application of biochar. The results of wheat straw biochar along withBacillussp. ZM20 were better as compared to farm-yard manure biochar and Egyptian acacia biochar. Maximum increase (25.77%) in grain yield was observed in the treatment where wheat straw biochar (0.2%) was applied in combination withBacillussp. ZM20. In conclusion, combined application of wheat straw biochar (0.2%) inoculated withBacillussp. ZM20 was the most effective treatment in improving the biological soil properties, plant growth, yield, and quality of maize crop as compared to all other treatments.

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