Fixed shank improves soil properties and common bean performance when sown in the same row.
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| Title: | Fixed shank improves soil properties and common bean performance when sown in the same row. |
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| Alternate Title: | Haste fixa melhora as propriedades do solo eo desempenho do feijão quando semeado na mesma linha. |
| Authors: | Outeiro, Vitor H.1, Rampim, Leandro2, Müller, Marcelo M. L.3, Rosset, Jean S.4, Olanik, Chaiane2, Pacheco, Amanda A.2, Prazeres, Marco S.5, Pott, Cristiano A.2 |
| Source: | Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi. 2026, Vol. 30 Issue 3, p1-11. 11p. |
| Subjects: | Soil porosity, Phosphate fertilizers, Bean growing, Planting, Soil compaction, No-tillage |
| Abstract (English): | Compaction and heterogeneous nutrient concentrations along the soil profile limit crop yield. This study aimed to assess the impact of corn sowing with double disks and fixed shanks combined with phosphate fertilization on soil properties and corn performance, and to evaluate whether re-sowing in the same row affects common bean development. In a randomized block design, the treatments were arranged in a split plot scheme, in which the main plot consisted of the two doses of P and the subplot consisted of the furrow opening mechanisms. Mechanisms for sowing were: double disks, operating at 0.05 m depth; and fixed shanks, operating at 0.05, 0.10 and 0.20 m depths. Triple superphosphate deposition conditions in the sowing furrow were: 1) absence and 2) presence of 200 kg ha-1. Penetration resistance, macroporosity, and phosphorus and calcium concentrations of the soil, as well as the biometric characteristics and yields of corn and common bean were evaluated. Fixed shanks at depths of 0.10 and 0.20 m increased soil macroporosity and phosphorus levels when combined with triple superphosphate. Additionally, re-sowing with double disks along the same cultivation rows previously treated with fixed shanks at 0.20 m depth resulted in higher total dry biomass of common beans. The results indicate that the fixed shanks use improves soil structure and modifies phosphorus stratification, increasing its availability in 0.15-0.20 m soil layer. Re-sowing common beans along the same rows previously cultivated with fixed shanks at 0.20 m depth resulted in greater total biomass in no-tillage system. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): | Compactação e concentrações heterogêneas de nutrientes ao longo do perfil do solo limitam a produtividade das culturas. Este estudo avaliou o impacto da semeadura com discos duplos e hastes sulcadoras combinados à adubação fosfatada sobre as propriedades do solo e o desempenho do milho, além de verificar se a ressemeadura na mesma linha afeta o desenvolvimento do feijão. Em delineamento em blocos casualizados, os tratamentos foram dispostos em parcelas subdivididas, em que a parcela principal consistiu de duas doses de P e a subparcela dos mecanismos de abertura dos sulcos. Os mecanismos foram: discos duplos a 0,05 m; e hastes fixas, a 0,05, 0,10 e 0,20 m de profundidades. As condições de deposição do superfosfato triplo no sulco de semeadura foram: 1) ausência e 2) presença de 200 kg ha-1. Avaliaram-se resistência à penetração, macroporosidade e teores de fósforo e cálcio do solo, bem como características biométricas e rendimentos de milho e feijão. Hastes fixas a 0,10 e 0,20 m de profundidade aumentaram a macroporosidade do solo e teores de fósforo quando combinados com superfosfato triplo. A ressemeadura com discos duplos nas mesmas linhas cultivadas anteriormente com hastes a 0,20 m de profundidade resultou em maior biomassa seca do feijão-comum. Os resultados indicam que o uso de hastes fixas melhora a estrutura do solo e modifica a estratificação do fósforo, aumentando sua disponibilidade em 0,15-0,20 m. A ressemeadura de feijão-comum nas linhas previamente cultivadas com hastes a 0,20 m de profundidade resultou em maior biomassa em sistemas de plantio direto. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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