Patanita Mariana, Campos Maria Doroteia, Félix Maria do Rosário, Carvalho Mário, Brito Isabel
MED-Mediterranean Institute for Agriculture, Environment and Development, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal.
MED-Mediterranean Institute for Agriculture, Environment and Development & Departamento de Fitotecnia, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal.
Biology (Basel). 2020 Mar 3;9(3):46. doi: 10.3390/biology9030046.
The sustainability of agriculture requires the adoption of agricultural soil conservation practices with positive impacts on soil quality, which can promote beneficial soil microbiota like arbuscular mycorrhizal fungi (AMF) and its diversity. This study aims to assess the influence of the presence of intact extraradical mycelium as a preferential source of inoculum of the native AMF in order to guarantee a better colonization as well as its possible bioprotective effect against . In order to vary the available extraradical mycelium, two experiments, with and without cover crop, were carried out, in which two tillage systems and two maize varieties were studied. The capitalization of the benefits, in terms of grain production and presence, associated to the cover crop were only achieved with minimum tillage. Therefore, both cultural practices are necessary to reduce the fungus presence, coupling the effect of mycorrhization together with other benefits associated with the cover crop. Although in the absence of a cover crop and using conventional tillage, yields and lower levels of are possibly achieved, this system is more dependent on the variety used, does not benefit from the advantages associated with the cover crop, is more expensive, and environmentally unsustainable.
农业的可持续性需要采用对土壤质量有积极影响的农业土壤保护措施，这可以促进有益的土壤微生物群，如丛枝菌根真菌（AMF）及其多样性。本研究旨在评估完整的根外菌丝体作为本地AMF接种物的优先来源的存在所产生的影响，以确保更好的定殖以及其对……可能的生物保护作用。为了改变可用的根外菌丝体，进行了两个实验，一个有覆盖作物，一个没有覆盖作物，其中研究了两种耕作系统和两个玉米品种。只有通过少耕才能实现与覆盖作物相关的谷物产量和……存在方面的效益资本化。因此，两种栽培措施对于减少真菌存在都是必要的，将菌根化的效果与覆盖作物相关的其他效益结合起来。虽然在没有覆盖作物且采用传统耕作的情况下，可能会实现产量和较低水平的……，但该系统更依赖于所使用的品种，无法从覆盖作物相关的优势中受益，成本更高，且在环境上不可持续。
