Comparative effects of food processing liquid slurry and inorganic fertilizers on tanner grass (<i>Brachiaria arrecta</i>) pasture: grass yield, crude protein and P levels and residual soil N and P

Luce, Mervin St.; Gouveia, Gregory A.; Eudoxie, Gaius

doi:10.1111/gfs.12240

Cited by 4 publications

(1 citation statement)

References 56 publications

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“…The seed germination begins at 20-21 • C, with the optimum at 25 • C [53]. In addition, U. subquadripara has been reported to occur in places such as Paragominas (Brazil) [9] and Bantul Yogyakarta (Indonesia) [54], where the minimum and maximum average temperatures were 21 and 34 • C. Therefore, the parameters related to the ideal temperature for the growth of U. subquadripara (DV1 and DV2) were set at 22 and 35 • C. Research carried out with the species also adopted temperature values within the range established as optimal [55][56][57].…”

Section: Urochloa Subquadripara Growth Indicesmentioning

confidence: 99%

Ecological Niche Modeling of Invasive Macrophyte (Urochloa subquadripara) and Co-occurrence with Natives

Duque¹,

SOUZA²,

Mendes³

et al. 2023

Preprint

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Invasive macrophytes are considered problematic in natural environments and hydroelectric reservoirs. Climate changes, the occurrence of watercourses, and biotic interactions influence the biological invasion of macrophytes. Native species can correlate with invasives positively or negatively. Urochloa subquadripara is an invasive in natural or disturbed habitats co-occurring with the natives Eichhornia crassipes and Salvinia minima. Aquatic plant communities can be altered by climate change, so species distribution models (SDMs) are important tools for predicting in-vaded areas. This work aimed to make an SDM for U. subquadripara correlating with the poten-tial distribution of native species E. crassipes and S. minima. Occurrence data for U. subquadripara, E. crassipes, and S. minima were collected from databases and in consultation with the published literature. Parameters encompassing biological information of the species were entered into the CLIMEX software and used to generate the Ecoclimatic Index (EI). The species co-occurrence was performed based on multicriteria decision-making (MCDM), and weights were assigned using the analytical hierarchy process (AHP). It was observed that U. subquadripara, E. crassipes, and S. minima have a higher occurrence in tropical and subtropical regions; however, it is predicted that, from climatic changes, these species may move to high latitudes. According to climate change, the risk of invasion by U. subquadripara in the northern hemisphere is mainly in lakes, while in the southern hemisphere, the areas conducive to invasions are rivers and reservoirs. In general, emerging and floating macrophyte species such as U. subquadripara, E. crassipes, and S. minima will be favored, causing suppression of submerged species. Therefore, identifying the potential distribution of these species allows the creation of pre-invasion intervention strategies.

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Section: Urochloa Subquadripara Growth Indicesmentioning

confidence: 99%

Ecological Niche Modeling of Invasive Macrophyte (Urochloa subquadripara) and Co-occurrence with Natives

Duque¹,

SOUZA²,

Mendes³

et al. 2023

Preprint

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Influence of N-forms and changes in nutrient solution pH on growth of Palisadegrass plants

Souri

2022

Journal of Plant Nutrition

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Chemical Composition and In Vitro Ruminal Fermentation Characteristics of Native Grasses from the Floodplain Lowlands Ecosystem in the Colombian Orinoquia

Vélez-Terranova,

Salamanca-Carreño,

Vargas-Corzo

et al. 2023

Animals

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Grasses from lowland ecosystems in flooded savannahs are useful to feed extensive grazing animals; however, scarce information about its agronomic and fermentation characteristics exists. This study aims to determine the chemical composition and fermentation parameters of native grasses from the floodplain lowlands ecosystem in the Colombian Orinoquia. Three native grasses (Leersia hexandra, Acroceras zizanioides and Hymenachne amplexicaulis) and a “control” grass (introduced Urochloa arrecta—Tanner grass) were sown and sampled at 30, 40 and 50 days of age. On each sampling date, biomass production in a 1 m2 frame was estimated, and the chemical composition and fermentation parameters were analyzed using near-infrared spectroscopy and the in vitro gas production technique, respectively. Data were analyzed using a mixed model for repeated measures and the least significant difference (LSD) was used for mean differentiation (p < 0.05). The grasses’ nutritional characteristics varied as follows: dry matter (DM, 0.7–2.0 ton/ha), crude protein (CP, 6.1–12.2%), neutral detergent fiber (NDF, 56.6–69.6%), ash (5.8–15.8%) and dry matter digestibility (DMD) between 20.8 and 60.6% from 12 to 48 h of fermentation. Native plants such as L. hexandra and A. zizanioides presented higher biomass production, CP, ash, cellulose, and Ca levels than the control plant. During the experimental period (30 to 50 days), the grasses did not present significant nutrient availability changes. In terms of fermentation characteristics, L. hexandra increased ammonia concentrations and total volatile fatty acids (TVFA) and butyric acid. This latter effect was also observed in A. zizanioides grass. L. hexandra and A. zizanioides grasses constitute a valuable alternative forage resource during the flooding times of the studied ecosystem.

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Comparative effects of food processing liquid slurry and inorganic fertilizers on tanner grass (Brachiaria arrecta) pasture: grass yield, crude protein and P levels and residual soil N and P

Cited by 4 publications

References 56 publications

Ecological Niche Modeling of Invasive Macrophyte (Urochloa subquadripara) and Co-occurrence with Natives

Ecological Niche Modeling of Invasive Macrophyte (Urochloa subquadripara) and Co-occurrence with Natives

Influence of N-forms and changes in nutrient solution pH on growth of Palisadegrass plants

Chemical Composition and In Vitro Ruminal Fermentation Characteristics of Native Grasses from the Floodplain Lowlands Ecosystem in the Colombian Orinoquia

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