Nano-biofertilizer: An Emerging Eco-friendly Approach for Sustainable Agriculture

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Nano-biofertilizer: An Emerging Eco-friendly Approach for Sustainable Agriculture Rima Kumari1 • Devendra Pratap Singh1

Received: 7 January 2019 / Revised: 1 May 2019 / Accepted: 7 August 2019  The National Academy of Sciences, India 2019

Abstract In this review, the authors focused on the applicability of nano-biotechnology in fertilizer development to improve the nutrition dynamics of the soil–plant system for sustainable crop management. Indiscriminate uses of chemical fertilizers have caused serious degradation of soil fertility, environmental pollution, pest resistivity, loss of biodiversity and economic losses. Hence, researchers and scientists have shifted their attention to a safer and productive means of fertilization for agricultural practices. Nano-biotechnology, with the potential properties of nanomaterial and biofertilizer, helps for the development of novel, low-cost, eco-friendly nano-biofertilizer. The literature on the role of nano-biofertilizer in plant and soil systems demonstrated that it acts efficiently for enhancement of agricultural productivity. They act synergistically providing higher retention of soil moisture and essential plant nutrients due to nanomaterial coating as well as microbial revitalization due to the bioorganic component containing plant growth promoters through direct and indirect interactions like biofertilization, rhizoremediation, disease resistance, etc. A review on nanotechnology-based biofertilizer formulation for sustainable agriculture

Significance Statement Nanotechnological approach for sustainable agriculture production has been reviewed. An integrated approach of nano- and biofertilizer suggested as a better alternative against chemical fertilization. Nano-biofertilizer acts beneficially in maximizing nutrient uptake, retaining water by plant and soil system. Nano-biofertilizer contributes significantly to promote crop yield and quality. It may be preferred to get rid of chemical fertilizer deposition in soil and eutrophication into the water system. & Devendra Pratap Singh [email protected]; [email protected] 1

Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India

development is discussed in this paper. The authors focus on the literature-based evidences and outstanding concerns of nano-biotechnological researches on the role of nanoformulated organic manures with key nutrients on crop growth and management. Literature-based evidences showed the profound role of nano-biofertilizer in benefitting crop growth and soil quality. The present review summarized various soil- or field-based studies with nanobiofertilizers and its significance over biofertilizer. It is anticipated that the development and validation of nanobiofertilizer that are non-disruptive to existing bulk nanofertilizer production systems will motivate the industry’s involvement in nano-biofertilizer. Keywords Nano-biofertilizer  Soil nutrient status  Plant growth  Eco-sustainable approach

Introduction Chemical fertilizers play