Plant production decreases whereas nutrients concentration increases in response to the decrease of mowing stubble height

Yang, Zhaoping; Minggagud, Hugjiltu; Baoyin, Taogetao; Li, Frank Y.

doi:10.1016/j.jenvman.2019.109745

Cited by 54 publications

(34 citation statements)

References 46 publications

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“…Por otro lado, el aumento de las concentraciones de macronutrientes en las plantas por las SiO2 NPs puede estar relacionado con un "efecto de concentración", ya que disminuyó la biomasa de parte aérea y raíces. Yang et al (2020), informaron que la concentración de N y P aumenta en respuesta a la disminución de la altura de Leymus chinensis y Stipa krylovii. La concentración de Mg y Zn en la raíz, y K en las hojas de Pfaffia glomerata aumentó en respuesta a la disminución de la biomasa de raíces y hojas secas causada por la exposición a 50 μM de As (Gupta et al, 2013).…”

Section: Macronutrientesunclassified

Las Nanopartículas de SiO2 Mejoran la Absorción de Nutrientes en Plantas de Tomate Desarrolladas en Presencia de Arsénico

González-Moscoso¹,

Martínez-Villegas²,

Meza-Figueroa³

et al. 2021

rbio

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The nutritional status of a plant can be negatively modified by toxic elements that have an analogy with essential nutrients or by the stress caused at the absorption sites. The absorption and distribution of nutrients in roots and leaves of tomato plants (Solanum lycopersicum) developed under conditions of contamination by arsenic in the nutrient solution and treated with nanoparticles of silicon dioxide was evaluated. The plants were grown for 150 days in greenhouse conditions and soilless culture. Different concentrations of arsenate (0, 0.2, 0.4, 0.8, 1.6 and 3.2 mg L-1) were applied through the nutritive solution, and three concentrations of silicon dioxide nanoparticles (0, 250 and 1000 mg L-1) applied via drench. The dry root and shoot biomass production was determined, as well as the concentration of micronutrients (Fe, Cu, Zn) and macronutrients (K, S, P) in roots and leaves. Exposure to arsenic in low doses resulted in a reduction in dry biomass. The application of only silicon dioxide nanoparticles also significantly reduced biomass. The presence of arsenic in the nutrient solution decreased the uptake of Fe, Cu, Zn and P in roots, but increased the uptake of K. The nanoparticles of silicon dioxide increased the uptake of macronutrients in roots and leaves. The uptake of nutrients by tomato plants is negatively affected by the presence of arsenic in the nutritive solution; however, this effect can be reversed with the application of nanoparticles of silicon dioxide since it favors the uptake of nutrients.

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Section: Macronutrientesunclassified

Las Nanopartículas de SiO2 Mejoran la Absorción de Nutrientes en Plantas de Tomate Desarrolladas en Presencia de Arsénico

González-Moscoso¹,

Martínez-Villegas²,

Meza-Figueroa³

et al. 2021

rbio

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“…Mowing is the dominant way for forage harvest in global grasslands (Maron and Jeffries 2001;Talle et al 2016), which could affect the quantity and quality of forage yield (Mikhailova et al 2000;Yang et al 2020). While mowing could increase forage yield in the short term (Milchunas et al 2005;Dickson 2019), long-term mowing with high frequency could reduce the quantity and quality of forage yield either by directly declining soil nutrient availability (Venterink et al 2009) or indirectly by changing plant community composition (Maron and Jeffries 2001).…”

Section: Introductionmentioning

confidence: 99%

Mowing weakens the positive effects of nitrogen deposition on fundamental ecosystem service of grassland

et al. 2021

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Forage yield is the fundamental ecosystem service of grasslands. While the quantitative responses of forage yield to nitrogen (N) enrichment are well known, its qualitative responses remain unclear. Even less known is the relative contribution of changes in community composition to the quality of the yield at the community level. We examined the quantitative and qualitative responses of forage yield at both plant functional group and community levels with factorial treatments of N addition and mowing in a temperate steppe. Nitrogen addition significantly enhanced the community-level yield by favoring the growth of rhizomatous grass. Mowing tended to mediate the impacts of N addition on the yield. Nitrogen addition increased the concentrations of crude protein and crude fat in forage at the community level. Neither the main effects of mowing nor its interactive effects with N addition affected forage quality. The N-induced shifts in plant species composition significantly contributed to the effects of N addition on forage quality at the community level. Our results suggest that mowing wound weaken the positive effects of N deposition on the quantity but not the quality of forage yield. Changes in plant community composition are important in driving the qualitative responses of yield to N deposition.

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“…Grazing or mowing increase the soil bulk density (SBD) (though not always significantly) until it reaches a stable level (Okach et al, 2018;Xu et al, 2018;Batista et al, 2019). However, the impact of grazing or mowing on soil chemical properties do not exhibit consistent trends (Luo et al, 2019;Yang et al, 2020). Some scholars have found that grazing or mowing does not significantly change soil chemical properties (Kitchen et al, 2009;Swacha et al, 2018;Nakano et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Non-utilization Is Not the Best Way to Manage Lowland Meadows in Hulun Buir

Yin

et al. 2021

Front. Plant Sci.

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Carex meyeriana lowland meadow is an important component of natural grasslands in Hulun Buir. However, in Hulun Buir, fewer studies have been conducted on C. meyeriana lowland meadows than on other grassland types. To determine the most appropriate utilization mode for C. meyeriana lowland meadows, an experiment was conducted in Zhalantun city, Hulun Buir. Unused, moderately grazed, heavily grazed and mowed meadow sites were selected as the research objects. The analysis of experimental data from 4 consecutive years showed that relative to the other utilization modes, mowing and moderate grazing significantly increased C. meyeriana biomass. Compared with non-utilization, the other three utilization modes resulted in a higher plant diversity, and the moderately grazed meadow had the highest plant community stability. Moreover, principal component analysis (PCA) showed that among the meadow sites, the mowed meadow had the most stable plant community and soil physicochemical properties. Structural equation modeling (SEM) showed that grazing pressure was less than 0.25 hm2/sheep unit and that plant biomass in C. meyeriana lowland meadow increases with increasing grazing intensity, temperature and precipitation.

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Plant production decreases whereas nutrients concentration increases in response to the decrease of mowing stubble height

Cited by 54 publications

References 46 publications

Las Nanopartículas de SiO2 Mejoran la Absorción de Nutrientes en Plantas de Tomate Desarrolladas en Presencia de Arsénico

Las Nanopartículas de SiO2 Mejoran la Absorción de Nutrientes en Plantas de Tomate Desarrolladas en Presencia de Arsénico

Mowing weakens the positive effects of nitrogen deposition on fundamental ecosystem service of grassland

Non-utilization Is Not the Best Way to Manage Lowland Meadows in Hulun Buir

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