Response of vegetation to sheep dung addition in a degraded Cerrado area

Teixeira, Danilo Silva; Rezende, Andréia Alves; Lannes, Lucíola Santos

doi:10.1590/1807-1929/agriambi.v23n1p47-52

Cited by 7 publications

(10 citation statements)

References 19 publications

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“…As mycorrhizal associations can help them to become even more aggressive in colonization terms (Menzel et al, 2017), it is important to understand whether the African invasive plants living in the Cerrado benefit from associations with AMF to increase its invasion potential. This might be the case in the degraded Cerrado area studied here, since Urochloa decumbens is an abundant and widespread species that generally arrives first and dominates large patches of the environment in this region (Teixeira et al, 2019). Whether this ability is specifically due to its association with AMF or to other characteristics still deserves investigation.…”

Section: /7mentioning

confidence: 89%

Urochloa decumbens Has Higher Mycorrhizal Colonization in Degraded than in Pristine Areas in the Brazilian Cerrado

2019

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Brazil has extensive degraded areas, where vegetation fails to establish due to harsh soil conditions. However, some invasive species such as Urochloa decumbens are successful pioneers in such areas, but the reasons deserve investigation. Mycorrhizal fungi are abundant in Cerrado soils, and their association with plants are beneficial for their establishment in natural and degraded areas. This study investigated whether arbuscular mycorrhizal colonization of native and exotic plants in the Cerrado differs between pristine and degraded areas. We collected 135 plants from four functional groups in 68 areas and determined the percentage of mycorrhizal colonization. The invasive grass Urochloa decumbens had significantly higher colonization rates in degraded than in native areas, and higher colonization than the native species. These results are important for soil management since Urochloa decumbens is widely used in early soil restoration efforts, and for nature conservation concerning the management of invasive plants in restoration areas.

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Section: /7mentioning

confidence: 89%

Urochloa decumbens Has Higher Mycorrhizal Colonization in Degraded than in Pristine Areas in the Brazilian Cerrado

2019

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“…Previously, surface soil removal of approximately 8.6 m of the original soil profile for constructing the foundation of the dam of the hydropower plant from Ilha Solteira effectively eliminated the native vegetation of a massive area in this region (Alves, Nascimento, & Souza, 2012; Teixeira et al., 2019). The area was vastly colonized by green algae and bryophytes, but taller plants were still scarce and patchy, which may suggest that nutrients and/or water limitation hamper ecological succession in the studied area.…”

Section: Methodsmentioning

confidence: 99%

“…In the mentioned experiment, potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn), boron (B), copper (Cu), and molybdenum (Mo) were added in combination; thus, any of these nutrients could limit or colimit the productivity in that area. In a recent study investigating the effects of sheep dung deposition as possible stimulants of plant growth in a degraded Cerrado area in Sao Paulo, Teixeira, Rezende, and Lannes (2019) detected that this treatment stimulated aboveground biomass growth of native Cerrado grasses. Boron was the only element among 11 determined macro‐ and micronutrients that significantly increased in concentration in soil of plots treated with dung addition.…”

Section: Introductionmentioning

confidence: 99%

“…The aim of this study was to investigate the effects of B fertilization on biomass production of a herbaceous Cerrado plant community, through a field fertilization experiment performed in the same area of the Teixeira et al. (2019) study. Additionally, the effect of B fertilization on individual plant species (native, alien noninvasive, and alien invasive species) in a mesocosm experiment with Cerrado soil was investigated.…”

Section: Introductionmentioning

confidence: 99%

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Boron application increases growth of Brazilian Cerrado grasses

Lannes

Venterink

Leite

et al. 2020

Ecology and Evolution

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Nutrients are known to limit productivity of plant communities around the world. In the Brazilian Cerrado, indirect evidences point to phosphorus as the main limiting nutrient, but some fertilization experiments suggest that one or more micronutrients might play this role. Boron is one of the essential micronutrients for plants. Agronomically, it received some attention, but it has mostly been neglected in ecological studies assessing the effects of nutrients on plant growth. Through field fertilization and mesocosm experiments in a degraded area in the Cerrado, we show that boron addition increased biomass production of herbaceous vegetation. This could be related to a lower aluminum uptake in the boron fertilized plants. Even considering that plant growth was promoted by boron addition due to aluminum toxicity alleviation, this is the first study reporting boron limitation in natural, noncultivated plant communities and also the first report of this kind in vegetative grasses. These results contribute to disentangling patterns of nutrient limitation among plant species of the species‐rich, aluminum‐rich, and nutrient‐poor Cerrado biome and highlight the potential role of micronutrients, such as boron, for growth of noncrop plants. Understanding how nutrient limitation differs among functional groups in the highly biodiverse areas founded on ancient tropical soils may help managing these plant communities in a changing world.

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“…The Brazilian Cerrado is a biodiversity hotspot (MYERS et al, 2000) undergoing several threats due to agricultural and industrial expansion and in need of development of techniques aiding the recuperation of the degraded areas in this biome (ALVES et al, 2012). Recently, Teixeira et al (2019) showed that the addition of sheep manure in a degraded area in the Cerrado promoted soil nutrient enrichment and further helped plant establishment, suggesting that this practice can be successfully applied as a natural organic source of nutrients to the soil.…”

Section: Introductionmentioning

confidence: 99%

Effects of animal manure upon growth of Cerrado plants

Ferreira

Viñales

Silva

et al. 2020

RICA

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Through excretion, animals return to the soil part of the nutrients they ingest. This input can be an alternative to artificial inorganic fertilization aiming at increasing soil nutrient concentrations in degraded areas that are prone to restoration. In nutrient-poor soils, the addition of animal manure can promote increases in soil fertility, but studies assessing its effects upon plant communities are meager. This study aims at checking whether the addition of manure originated from livestock promotes plant growth increase and enzyme activity in Cerrado native plants of different functional groups as a way to subsidize processes of environmental recuperation in degraded areas using organic fertilization of an easily available source, as animal manure. The experiment was conducted in a screenhouse through a completely randomized design with four manure and six species treatments with three replicates. Manure treatments used were control, cattle, sheep and goat manure. The plant species selected belonged to main Cerrado herbaceous functional groups – two naturalized grasses, two alien invasive grasses, a legume herb and a Malvaceae herb. Phosphorus and nitrogen concentrations, and N:P ratios varied according to the type of manure. Soil organic matter content, phosphorus and potassium concentrations increased upon manure addition. Different manure types promoted various effects in height, biomass and acid phosphatase activity amongst the plants. Goat and cattle manure positively influenced Urochloa decumbens, an exotic invasive grass living in the Cerrado, whereas sheep manure addition promoted increase of non-invasive grasses. These results show that animal manure can promote better nutrient conditions for plants living in degraded areas, but the selection of the manure type for application in restoration projects aiming at aiding plant growth in Cerrado degraded areas will depend on the purpose of the project because different dung types benefit different plant functional groups.

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Response of vegetation to sheep dung addition in a degraded Cerrado area

Cited by 7 publications

References 19 publications

Urochloa decumbens Has Higher Mycorrhizal Colonization in Degraded than in Pristine Areas in the Brazilian Cerrado

Urochloa decumbens Has Higher Mycorrhizal Colonization in Degraded than in Pristine Areas in the Brazilian Cerrado

Boron application increases growth of Brazilian Cerrado grasses

Effects of animal manure upon growth of Cerrado plants

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