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A Bioeconomic Solution for Replacing Chemical Fertilizers by Organic Processes for Atmospheric Nitrogen Fixation in Soil

Author

Listed:
  • Gabriela Loredana Dinulescu

    (The Bucharest University of Economic Studies, Romania)

  • Valentina Ofelia Robescu

    (Valahia Univesity of Targoviste, Romania)

  • Florin Radu

    (Valahia Univesity of Targoviste, Romania)

  • Gabriel Croitoru

    (Valahia Univesity of Targoviste, Romania)

  • Valentin Radu

    (Valahia Univesity of Targoviste, Romania)

Abstract

Large-scale use of nitrogen-based chemical fertilizers, specific to intensive agriculture, has undesirable effects consisting of soil degradation and atmospheric loading with carbon dioxide. Good practice illustrates, however, that sustainable agriculture can be achieved by substituting as much as possible chemically synthesized nitrogen with biologically fixed nitrogen. This research is part of a study cycle that aims to use the natural symbiotic fixation models to bring into the soil and plants as much as possible atmospheric nitrogen, non-polluting, antioxidant and generator of humus and durability. We had work with a pea culture, seated in a rotation of 4 years the type pea, wheat-rape, maize, and we watched at three parameters of the symbiotic fixation between peas with species Rhizobium leguminosarum. The experiments were carried out in two locations in southern Romania (Burnas Plain - on the Plateau of Alexandria, and in the Southern Plain - Modelu, Calarasi) and the results were: • in dynamics the nodosities begin to form at 22-24 days after sowing, their number increases accentuated until the 37 days of life, after which it decreases slightly until the 70th day. The maximum number of nodosities on roots reaches a number of 57-58 per plant. The life of a nodosity is not longer than 10 days; • the weight of dry nodosities is on the peak of biological activity higher at Modelu (5.8 g/m2) at 38 days after sowing, and less in Alexandria (4.1 g/m2) at 37 days after sowing (Figure no. 2 in-text); • starting from the weight of the nodosites and using their transformation coefficient in the N (nitrogen) active substance (which is 4.6), and using the functional analysis of the correlations and integral calculations, the dynamics of nitrogen accumulation in the form of a high precision polynomial function (order 14) was obtained (figure no. 3 in-text), which tells us that: the highest amount of nitrogen is obtained on day 41 after sowing in the amount of 6.52 Kg N active substance/ha. Cumulative calculation obtained through the integral function the total and average quantity obtained for the two locations in 2016 – 2017 was about 116 kg N/ha (1).

Suggested Citation

  • Gabriela Loredana Dinulescu & Valentina Ofelia Robescu & Florin Radu & Gabriel Croitoru & Valentin Radu, 2018. "A Bioeconomic Solution for Replacing Chemical Fertilizers by Organic Processes for Atmospheric Nitrogen Fixation in Soil," The AMFITEATRU ECONOMIC journal, Academy of Economic Studies - Bucharest, Romania, vol. 20(48), pages 510-510.
  • Handle: RePEc:aes:amfeco:v:20:y:2018:i:48:p:510
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    Citations

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    Cited by:

    1. Cristinel Gigi Şonea & Mirela Stoican & Andra Cristina Şonea & Alina Iuliana Tăbîrcă, 2020. "Bioeconomic Management of Biodiversity of Sericulture Genetic Resources in the Context of Sustainable Development in Romania," Book chapters-LUMEN Proceedings, in: Marcin Waldemar STANIEWSKI & Valentina VASILE & Adriana Grigorescu (ed.), International Conference Innovative Business Management & Global Entrepreneurship (IBMAGE 2020), edition 1, volume 14, chapter 38, pages 443-456, Editura Lumen.
    2. Cristinel Gigi Sonea & Petre†Adrian Isar & Andra Cristina Sonea & Alice Munteanu, 2021. "The „One Health†Concept, the Result of the Application of Bio - Economic and Ethical Management in the Development of a Business in the Fisheries Sector Cristinel Gigi Şonea," Book chapters-LUMEN Proceedings, in: Adriana Grigorescu & Valentin Radu (ed.), 2nd International Conference Global Ethics - Key of Sustainability (GEKoS), edition 1, volume 15, chapter 23, pages 262-272, Editura Lumen.
    3. Cristinel Gigi Sonea & Andra Cristina Sonea & Alina Iuliana Tabirca, 2020. "Ethical Context of Entrepreneurship in the Swine Breeding Sector of Romania," Book chapters-LUMEN Proceedings, in: Adriana Grigorescu & Valentin Radu (ed.), 1st International Conference Global Ethics - Key of Sustainability (GEKoS), edition 1, volume 11, chapter 23, pages 223-235, Editura Lumen.
    4. Muhammad Atif Khan & Muhammad Asif Khan & Kishwar Ali & József Popp & Judit Oláh, 2020. "Natural Resource Rent and Finance: The Moderation Role of Institutions," Sustainability, MDPI, vol. 12(9), pages 1-23, May.
    5. Laura Mariana Cismaș & Emilia Mary Bălan & Cristina Georgiana Zeldea & Marioara Iordan & Cristian Mihai Cismaș, 2023. "Agriculture and the Bioeconomy: A Socioeconomic Analysis of Central and Eastern European Countries," Sustainability, MDPI, vol. 15(22), pages 1-16, November.

    More about this item

    Keywords

    biologically fixed nitrogen; natural patterns; nodosities; chemical synthesis nitrogen; bioeconomic model;
    All these keywords.

    JEL classification:

    • Q57 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Ecological Economics

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