屎壳郎(鞘翅目:金龟甲科)通过去除牛粪来吸收养分改善土壤和牧草的效率

IF 1.1 3区 农林科学 Q3 ENTOMOLOGY
Mariana Mrotskoski Niero, Arcângelo Loss, Gustavo Brunetto, Malva Isabel Medina Hernández
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引用次数: 0

摘要

粪食性蜣螂从粪便中获取养分,为改善土壤质量和农业环境中的植物生长提供了重要的生态系统服务。这项研究的目的是比较两种功能组的粪便去除对改善土壤和牧草特性的影响,它们之间以及与矿物肥料一起进行。于2021年夏/秋在巴西南部进行了一项中生昆虫试验,在以下几种处理中(1)远蛾种(Canthon rutilans cyanescens),(2)近蛾种(Dichotomius sericeus),(3)两种同时播种,(4)矿物肥料和牛粪对照。每周量化粪便去除量。试验结束时,分析了土壤的物理、化学和微生物特性,叶片和根系的干生物量和大量营养元素(N、P、K),以及草的光合色素。粪甲增加了土壤全氮和有机质含量及其C和n颗粒组分,降低了土壤容重,提高了土壤团聚度,影响了pH和Mg含量,降低了Al含量。在把钾吸收到土壤中方面,它们和矿物肥料一样有效。施甲虫处理与施矿物肥处理在叶面磷浓度上具有相似的值,而拟虫处理促进了草叶和根中钾浓度的增加。该官能团对牛粪的去除效果也较好,与土壤N、有机质及其颗粒组分、P、大团聚体含量和阳离子交换容量(CECpH7.0)呈正相关。因此,粪的清除与土壤的改善有关,主要是副虫,加强了这些生物在农业环境中发挥的生态系统功能的重要性,它们可以促进养分循环的增加,从而减少矿物肥料的使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Efficiency of dung beetles (Coleoptera: Scarabaeidae) in improving soil and forage grasses by incorporating nutrients through the removal of cattle dung

Coprophagous dung beetles provide important ecosystem services in improving soil quality and plant development in agricultural environments due to the availability of nutrients from dung removal. The study aimed to compare the effect of dung removal performed by two functional groups, among themselves and with mineral fertiliser, on improving soil and forage grass characteristics. An experiment in mesocosms was conducted in Southern Brazil during the summer/autumn of 2021, sowing Urochloa brizantha in the treatments: (1) telecoprid species (Canthon rutilans cyanescens), (2) paracoprid species (Dichotomius sericeus), (3) both species together, (4) mineral fertiliser and control with cattle dung. Dung removal was quantified weekly. At the end of the experiment, the soil's physical, chemical and microbiological characteristics, dry biomass and macronutrients (N, P and K) of the leaves and roots, and photosynthetic pigments of grasses were analysed. The dung beetle species studied increased total nitrogen and organic matter contents and their particulate fractions of C and N. Paracoprids decreased the soil bulk density and improved its soil aggregation, influencing the pH and Mg contents, with a reduction in Al levels. They were as efficient as mineral fertiliser in incorporating K into the soil. Treatments with beetles had values similar to mineral fertiliser in the foliar concentrations of P, and paracoprids promoted increases in the K concentration in the leaves and roots of the grass. This functional group was also more efficient in removing cattle dung, which was positively related to the amounts of N, organic matter and its particulate fractions, P, macroaggregates and the cation exchange capacity (CECpH7.0) of the soil. Thus, dung removal was associated with improvement in the soil, mainly paracoprids, reinforcing the importance of the ecosystem functions performed by these organisms in agricultural environments, where they can contribute to the increase in nutrient cycling with a consequent decrease in the use of mineral fertilisers.

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来源期刊
Austral Entomology
Austral Entomology ENTOMOLOGY-
CiteScore
3.20
自引率
0.00%
发文量
40
期刊介绍: Austral Entomology is a scientific journal of entomology for the Southern Hemisphere. It publishes Original Articles that are peer-reviewed research papers from the study of the behaviour, biology, biosystematics, conservation biology, ecology, evolution, forensic and medical entomology, molecular biology, public health, urban entomology, physiology and the use and control of insects, arachnids and myriapods. The journal also publishes Reviews on research and theory or commentaries on current areas of research, innovation or rapid development likely to be of broad interest – these may be submitted or invited. Book Reviews will also be considered provided the works are of global significance. Manuscripts from authors in the Northern Hemisphere are encouraged provided that the research has relevance to or broad readership within the Southern Hemisphere. All submissions are peer-reviewed by at least two referees expert in the field of the submitted paper. Special issues are encouraged; please contact the Chief Editor for further information.
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