Deepranjan Sarkar1, Ardith Sankar2, O Siva Devika1, Sonam Singh1, Manoj Parihar3, Amitava Rakshit4, R Z Sayyed5, Abdul Gafur6, Mohammad Javed Ansari7, Subhan Danish8,9, Shah Fahad10, Rahul Datta11. 1. Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005, India. 2. Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005, India. 3. Crop Production Division, ICAR-Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora, 263601, Uttarakhand, India. 4. Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005, India. amitavar@bhu.ac.in. 5. Department of Microbiology, PSGVP Mandal's, Arts, Science & Commerce College, 425409, Shahada, Maharashtra, India. 6. Sinarmas Forestry Corporate Research and Development, Perawang, 28772, Indonesia. 7. Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand Univesity Bareilly), Moradabad, Uttar Pradesh, 244001, India. 8. Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60800, Pakistan. sd96850@gmail.com. 9. Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300, Brno, Czech Republic. sd96850@gmail.com. 10. Department of Agronomy, The University of Haripur, Haripur, 22620, Pakistan. 11. Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300, Brno, Czech Republic.
Abstract
Conventional agricultural practices and rising energy crisis create a question about the sustainability of the present-day food production system. Nutrient exhaustive crops can have a severe impact on native soil fertility by causing nutrient mining. In this backdrop, we conducted a comprehensive assessment of bio-priming intervention in red cabbage production considering nutrient uptake, the annual change in soil fertility, nutrient use efficiency, energy budgeting, and economic benefits for its sustainable intensification, among resource-poor farmers of Middle Gangetic Plains. The compatible microbial agents used in the study include Trichoderma harzianum, Pseudomonas fluorescens, and Bacillus subtilis. Field assays (2016-2017 and 2017-2018) of the present study revealed supplementing 75% of recommended NPK fertilizer with dual inoculation of T. harzianum and P. fluorescens increased macronutrient uptake (N, P, and K), root length, heading percentage, head diameter, head weight, and the total weight of red cabbage along with a positive annual change in soil organic carbon. Maximum positive annual change in available N and available P was recorded under 75% RDF + P. fluorescens + B. subtilis and 75% RDF + T. harzianum + B. subtilis, respectively. Bio-primed plants were also higher in terms of growth and nutrient use efficiency (agronomic efficiency, physiological efficiency, apparent recovery efficiency, partial factor productivity). Energy output (26,370 and 26,630 MJ ha-1), energy balance (13,643 and 13,903 MJ ha-1), maximum gross return (US $ 16,030 and 13,877 ha-1), and net return (US $ 15,966 and 13,813 ha-1) were considerably higher in T. harzianum, and P. fluorescens treated plants. The results suggest the significance of the bio-priming approach under existing integrated nutrient management strategies and the role of dual inoculations in producing synergistic effects on plant growth and maintaining the soil, food, and energy nexus.
Conventional agricultural practices and rising energy crisis create a question about the sustainability of the present-day food production system. Nutrient exhaustive crops can have a severe impact on native soil fertility by causing nutrient mining. In this backdrop, we conducted a comprehensive assessment of bio-priming intervention in red class="Species">cabbageclass="Chemical">production considering nutrient uclass="Chemical">ptake, the annual change in soil fertility, nutrient use efficiency, energy budgeting, and economic benefits for its sustainable intensification, among resource-class="Chemical">poor farmers of Middle Gangetic class="Chemical">pan class="Chemical">Plains. The compatible microbial agents used in the study include Trichoderma harzianum, Pseudomonas fluorescens, and Bacillus subtilis. Field assays (2016-2017 and 2017-2018) of the present study revealed supplementing 75% of recommended NPK fertilizer with dual inoculation of T. harzianum and P. fluorescens increased macronutrient uptake (N, P, and K), root length, heading percentage, head diameter, head weight, and the total weight of red cabbage along with a positive annual change in soil organic carbon. Maximum positive annual change in available N and available P was recorded under 75% RDF + P. fluorescens + B. subtilis and 75% RDF + T. harzianum + B. subtilis, respectively. Bio-primed plants were also higher in terms of growth and nutrient use efficiency (agronomic efficiency, physiological efficiency, apparent recovery efficiency, partial factor productivity). Energy output (26,370 and 26,630 MJ ha-1), energy balance (13,643 and 13,903 MJ ha-1), maximum gross return (US $ 16,030 and 13,877 ha-1), and net return (US $ 15,966 and 13,813 ha-1) were considerably higher in T. harzianum, and P. fluorescens treated plants. The results suggest the significance of the bio-priming approach under existing integrated nutrient management strategies and the role of dual inoculations in producing synergistic effects on plant growth and maintaining the soil, food, and energy nexus.
Authors: A Sudha; D Durgadevi; S Archana; A Muthukumar; T Suthin Raj; S Nakkeeran; Peter Poczai; Omaima Nasif; Mohammad Javed Ansari; R Z Sayyed Journal: Front Microbiol Date: 2022-07-28 Impact factor: 6.064
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