Phosphorus acquisition from phosphate rock by soil cover crops, maize, and a buckwheat?maize cropping system
| Autor: | LOPES, V. A., WEI, M. C. F., CARDOSO, T. M., MARTINS, E. de S., CASAGRANDE, J. C., MARIANO, E. D. |
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| Přispěvatelé: | VALÉRIA ADRIELE LOPES, MARCELO CHAN FU WEI, TAINÁ MARTINS CARDOSO, EDER DE SOUZA MARTINS, CPAC, JOSÉ CARLOS CASAGRANDE, EDUARDO DAL AVA MARIANO. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| Popis: | Alternatives to enhance the consensual low phosphorus (P) use efficiency of agriculture may include use of phosphate rock (PR) and plant species with unequal ability to get soil and rock P interplanted in cropping systems to allow plants with higher ability to facilitate access to P of plants with lower ability. This study investigated (i) the maize and three soil cover crops on their capacity to acquire P from PR and (ii) measured P acquisition of maize interplanted with the soil cover crop with the highest capacity to acquire P shown in (i). Experiments were carried out in a greenhouse, with plants grown in single and mixed cropping in pots containing a sandy, low?P soil amended with Monocalcium Phosphate (McP) or the Brazilian PR Itafós. Plant biomass production with PR, in relation to McP, was 83.7 % for buckwheat, 83.6 % for forage radish, 51.8 % for maize, and 0.3 % for pigeon pea. Buckwheat showed capacity of acquiring P from PR; nevertheless, it did not increase growth or P nutrition of maize interplanted in the soil amended with PR, showing no significant P facilitation. The soil amended with McP showed competition between the two plants in the pots. Maize had a greater growth in mixed than in single cropping and this occurred at the expenses of buckwheat. Despite the P mobilization potential of buckwheat, its simple interplanting with maize did not produce positive results. Made available in DSpace on 2021-11-22T15:01:43Z (GMT). No. of bitstreams: 1 Eder-Phosphorus-acqusition.pdf: 1022432 bytes, checksum: a9fe647f7c2fa7b62099b58307c869ad (MD5) Previous issue date: 2022 |
| Databáze: | OpenAIRE |
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