دورية أكاديمية
Economic evaluation of biological nitrogen fixation in flooded rice cultivation in subtropical lowlands
| العنوان: | Economic evaluation of biological nitrogen fixation in flooded rice cultivation in subtropical lowlands |
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| المؤلفون: | Alcido Elenor Wander, Maria Laura Turino Mattos |
| المصدر: | Journal of Agriculture and Rural Development in the Tropics and Subtropics, Vol 124, Iss 1, Pp 57-63 (2023) |
| بيانات النشر: | Kassel University Press, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Agriculture |
| مصطلحات موضوعية: | partial budget, nitrogen, diazotrophic bacteria, inoculant, irrigated rice, Agriculture |
| الوصف: | This study aimed to assess the economic viability of biological nitrogen fixation in flood rice cultivation in subtropical lowlands. A field experiment of seven treatments was carried out during the cropping seasons 2015/16, 2017/18, 2018/19 and 2019/20 at the Lowland Experimental Station of Embrapa, in Pelotas, RS, Brazil. The evaluated treatments were: (1) negative control (without N and inoculant); (2) positive control with recommended N-fertilization (120 kg N ha-1, without inoculant) (standard recommendation); (3) inoculant 1 (accessions CMM 174 + CMM 175 + CMM 179); (4) inoculant 2 (accessions CMM 176 + CMM 197 + CMM 205); (5) combination of reduced N-fertilizer doses (90 kg N ha-1) + inoculant 1; (6) combination of reduced N-fertilizer doses (90 kg N ha-1) + inoculant 2; and (7) commercial inoculant [Azospirillum brasilense (strains Ab-V5 and Ab-V6)]. A partial budget was used to compare evaluated treatments with the standard recommendation regarding nitrogen fertilisation. Inoculant 2 composed of bacterial accessions CMM 176 (Rhizobium sp.), CMM 197 (Bacillus sp.) and CMM 205 (Aeromicrobium sp.) combined with reduced mineral nitrogen fertilisation [90 kg N ha-1 (applied in top dressing)] demonstrates the best agroeconomic efficiency in the production of irrigated rice in subtropical lowlands with the cultivar BRS Pampa. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1612-9830 2363-6033 |
| Relation: | https://www.jarts.info/index.php/jarts/article/view/202306128202; https://doaj.org/toc/1612-9830; https://doaj.org/toc/2363-6033 |
| DOI: | 10.17170/kobra-202306128202 |
| URL الوصول: | https://doaj.org/article/9e6d05046f394289bcde4603bd7bb4e6 |
| رقم الأكسشن: | edsdoj.9e6d05046f394289bcde4603bd7bb4e6 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16129830 23636033 |
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| DOI: | 10.17170/kobra-202306128202 |