Uso do penetrômetro eletrônico manual na avaliação da resistência do solo em sistemas de cultivo com plantas de cobertura

Autor: Oliveira, Kethelin Cristine Laurindo de, Silva, Lourdes Amaral Mendes, Garcia, Breno Thiago, Silva, Antônio Renan Berchol da, Maia, João Carlos de Souza
Jazyk: portugalština
Rok vydání: 2022
Předmět:
Zdroj: Research, Society and Development; Vol. 11 No. 14; e257111435706
Research, Society and Development; Vol. 11 Núm. 14; e257111435706
Research, Society and Development; v. 11 n. 14; e257111435706
Research, Society and Development
Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
ISSN: 2525-3409
Popis: A resistência do solo a penetração interfere diretamente na produção das culturas agrícolas prejudicando o desenvolvimento das raízes e consequentemente a absorção de água e nutrientes, o sistema de plantio direto tem como um de seus preceitos o não revolvimento do solo e com isso a compactação do solo é uma consequência. Objetivou-se neste estudo avaliar diferentes culturas de cobertura em consórcio ou mix, com e sem condicionantes de solo, com o plantio de milho na resistência a penetração do solo, na profundidade de 0 a 35 cm. O delineamento experimental foi em blocos casualizados com quatro repetições e oito tratamentos implantados anterior ao cultivo da soja, T1- milho solteiro com adubação convencional; T2 – milho solteiro com apenas adubação orgânica; T3- milho com adubação organomineral; T4- milho com biocarvão; T5- mix de plantas de cobertura (crotalária spectabilis+nabo forrageiro+braquiária ruziziensi); T6- milho consorciado com braquiária ruziziensis; T7- milho consorciado com crotalária breviflora; T8- mix de plantas de cobertura+ biocarvão. Houve diferença significativa a 5% de probabilidade somente em duas profundidades, de 0 a 5 cm onde os tratamentos 7 e 8 foram os que apresentaram menor resistência a penetração e na profundidade de 30 a 35 cm onde o tratamento 1 foi o que apresentou menor resistência a penetração. Soil resistance to penetration directly interferes with the production of agricultural crops, harming the development of roots and consequently the absorption of water and nutrients, the no-tillage system has as one of its precepts the non-disturbing of the soil and with that the soil compaction. it is a consequence. The objective of this study was to evaluate different cover crops in consortium or mix, with and without soil conditioning, with the planting of corn in the resistance to soil penetration, at a depth of 0 to 35 cm. The experimental design was in randomized blocks with four replications and eight treatments implanted before soybean cultivation, T1- single corn with conventional fertilization; T2 – single corn with only organic fertilization; T3- corn with organomineral fertilization; T4- corn with biochar; T5- mix of cover crops (crotalaria spectabilis+forage turnip+brachiaria ruziziensi); T6- corn intercropped with Brachiaria ruziziensis; T7- corn intercropped with sunn hemp; T8- mix of cover crops + biochar. There was a significant difference at 5% probability only at two depths, from 0 to 5 cm where treatments 7 and 8 were the ones with the lowest penetration resistance and at the depth of 30 to 35 cm where treatment 1 was the one with the lowest resistance the penetration. Soil resistance to penetration directly interferes with the production of agricultural crops, harming the development of roots and consequently the absorption of water and nutrients, the no-tillage system has as one of its precepts the non-disturbing of the soil and with that the soil compaction. it is a consequence. The objective of this study was to evaluate different cover crops in consortium or mix, with and without soil conditioning, with the planting of corn in the resistance to soil penetration, at a depth of 0 to 35 cm. The experimental design was in randomized blocks with four replications and eight treatments implanted before soybean cultivation, T1- single corn with conventional fertilization; T2 – single corn with only organic fertilization; T3- corn with organomineral fertilization; T4- corn with biochar; T5- mix of cover crops (crotalaria spectabilis+forage turnip+brachiaria ruziziensi); T6- corn intercropped with Brachiaria ruziziensis; T7- corn intercropped with sunn hemp; T8- mix of cover crops + biochar. There was a significant difference at 5% probability only at two depths, from 0 to 5 cm where treatments 7 and 8 were the ones with the lowest penetration resistance and at the depth of 30 to 35 cm where treatment 1 was the one with the lowest resistance the penetration.
Databáze: OpenAIRE
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