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Artykuły w czasopismach na temat „Root density; soil moisture”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Konôpka, B., L. Pagès, and C. Doussan. "Soil compaction modifies morphological characteristics of seminal maize roots." Plant, Soil and Environment 55, No. 1 (2009): 1–10. http://dx.doi.org/10.17221/380-pse.

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An evaluation of the effects of soil structural heterogeneity on maize (<I>Zea mays</I> L.) root system architecture was carried out on plants grown in boxes containing fine soil and clods. The clods were prepared at two levels of moisture (0.17 and 0.20 g/g) and bulk density (ranges 1.45–1.61 g/ml and 1.63–1.79 g/ml). Soil moisture directly affected the probability of clod penetration by maize roots. Primary roots inside the clods manifested morphological deformations in the form of bends. We observed a significant increase of bends per root length at lower soil moisture (<I&gt

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Reardon, James, Roger Hungerford, and Kevin Ryan. "Factors affecting sustained smouldering in organic soils from pocosin and pond pine woodland wetlands." International Journal of Wildland Fire 16, no. 1 (2007): 107. http://dx.doi.org/10.1071/wf06005.

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The smouldering combustion of peat and muck soil plays an important role in the creation and maintenance of wetland communities. This experimental study was conducted to improve our understanding of how moisture and mineral content constrain smouldering in organic soil. Laboratory burning was conducted with root mat and muck soil samples from pocosin and pond pine woodland wetlands common on the North Carolina coastal plain. The results of laboratory and prescribed burning were compared. Laboratory results showed that moisture and mineral content influenced sustained smouldering in root mat so

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3

Zarehaghi, D., M. R. Neyshabouri, M. Gorji, R. Hassanpour, and A. Bandehagh. "Growth and development of pistachio seedling root at different levels of soil moisture and compaction in greenhouse conditions." Soil and Water Research 12, No. 1 (2017): 60–66. http://dx.doi.org/10.17221/146/2015-swr.

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Soil moisture and compaction are important factors for growth and development of plant root. This study was conducted as a nested design with two factors and three replications to investigate the behaviour of pistachio seedling roots at different levels of soil compaction and moisture in a sandy loam soil under greenhouse conditions. The first factor was soil compaction at four levels of bulk density (1.35, 1.5, 1.65, and 1.8 g/cm<sup>3</sup>). The second factor was soil moisture with six levels ranging 0.07–0.49 cm<sup>3</sup>/cm<sup>3</sup>. Moisture monit

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4

Maan, Cynthia, Marie-Claire ten Veldhuis, and Bas J. H. van de Wiel. "Dynamic root growth in response to depth-varying soil moisture availability: a rhizobox study." Hydrology and Earth System Sciences 27, no. 12 (2023): 2341–55. http://dx.doi.org/10.5194/hess-27-2341-2023.

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Abstract. Plant roots are highly adaptable, but their adaptability is not included in crop and land surface models. They rely on a simplified representation of root growth, which is independent of soil moisture availability. Data of subsurface processes and interactions, needed for model setup and validation, are scarce. Here we investigated soil-moisture-driven root growth. To this end, we installed subsurface drip lines and small soil moisture sensors (0.2 L measurement volume) inside rhizoboxes (length × width × height of 45 × 7.5 × 45 cm). The development of the vertical soil moisture and

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5

Rokich, Deanna P., Kathy A. Meney, Kingsley W. Dixon, and K. Sivasithamparam. "The impact of soil disturbance on root development in woodland communities in Western Australia." Australian Journal of Botany 49, no. 2 (2001): 169. http://dx.doi.org/10.1071/bt00015.

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The impact of soil disturbance of the Banksia woodland soil profile and particularly the effect of different reconstructed soil profiles (overburden profile, white profile and yellow profile) and soil ripping within rehabilitation sites, was investigated in terms of root development and architecture for eight species that are key structural elements in Banksia woodland. The aim was to determine the soil environment best suited for root development and architecture likely to contribute to high seedling survival in post-mined sites. Root development and architecture differed significantly betwee

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6

Sanders, D. C., T. A. Howell, M. M. S. Hile, L. Hodges, and C. J. Phene. "Tomato Root Development Affected by Traveling Trickle Irrigation Rate." HortScience 24, no. 6 (1989): 930–33. http://dx.doi.org/10.21273/hortsci.24.6.930.

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Abstract Root length densities (cm·cm−3) of ‘VF145-B7879’ and ‘UC-82B’ tomatoes (Lycopersicon esculentum Mill.) were determined at three depths and four locations across the planting bed for traveling trickle irrigation treatments applied at 35%, 70%, and 105% of evapotranspiration (ET). Cultivars did not differ in root length densities or in their effect on soil moisture levels. Root length density and soil moisture decreased with soil depth. Although soil moisture was greater in the furrows, the zones of highest root concentration were between the rows of plants and along the edge of the bed

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7

Dwyer, L. M., B. L. Ma, D. W. Stewart, et al. "Root mass distribution under conventional and conservation tillage." Canadian Journal of Soil Science 76, no. 1 (1996): 23–28. http://dx.doi.org/10.4141/cjss96-004.

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Tillage effects on the soil environment suggest that it may influence rooting depth and root distribution. In this study, corn (Zea mays L.) rooting depth and root mass distribution were compared under conventional and conservation (chisel, ridge, no-) tillage on sandy loam and clay loam soils at Ottawa, Ontario. Root depth and distribution in 0.10-m vertical increments during vegetative growth were estimated using a combination of excavation of the surface horizon (0–0.10 m) and 0.05-m diameter cores obtained in the row and midway between two rows over a 3-yr period. An exponential model was

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8

Khanthavong, Phanthasin, Shin Yabuta, Hidetoshi Asai, Md Amzad Hossain, Isao Akagi, and Jun-Ichi Sakagami. "Root Response to Soil Water Status via Interaction of Crop Genotype and Environment." Agronomy 11, no. 4 (2021): 708. http://dx.doi.org/10.3390/agronomy11040708.

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Flooding and drought are major causes of reductions in crop productivity. Root distribution indicates crop adaptation to water stress. Therefore, we aimed to identify crop roots response based on root distribution under various soil conditions. The root distribution of four crops—maize, millet, sorghum, and rice—was evaluated under continuous soil waterlogging (CSW), moderate soil moisture (MSM), and gradual soil drying (GSD) conditions. Roots extended largely to the shallow soil layer in CSW and grew longer to the deeper soil layer in GSD in maize and sorghum. GSD tended to promote the root a

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9

Tan, C. S., and J. M. Fulton. "Water Uptake and Root Distribution by Corn and Tomato at Different Depths." HortScience 20, no. 4 (1985): 686–88. http://dx.doi.org/10.21273/hortsci.20.4.686.

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Abstract Root systems were studied to determine if differences in utilization of soil moisture were associated with the extent and number of roots produced by corn and tomato. Growth room studies for both crops indicated that the reduction in transpiration when the upper portion of the root zone was dry was greater than when the lower portion was dry. Total root length of corn was about twice that of tomato roots. However, no direct relationship between the total amount of root length and transpiration was found. Roots of corn and tomato in the field extended beyond the maximum depth measured

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10

Volkmar, K. M. "Effects of biopores on the growth and N-uptake of wheat at three levels of soil moisture." Canadian Journal of Soil Science 76, no. 4 (1996): 453–58. http://dx.doi.org/10.4141/cjss96-056.

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Roots grow more rapidly through soil spaces such as vacated root channels than through undisturbed soil. This experiment was conducted to determine the extent to which transfer of nutrients is compromised by gaps between the pore wall and the root. Undisturbed cores were obtained from a no-till Dark Brown Chernozemic soil. The cores were divided into three 2.5-cm-thick segments (3.8–6.3 cm, 7.8–10.3 cm, and 11.75–14.25 cm soil layers). The density of 200–500 μm (P200) and 500–1000 μm (P500) diameter pores was visually assessed in each segment. The cores were adjusted to water potentials of − 0

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11

Wang, Liqin, David M. Eissenstat, and Dora E. Flores-Alva. "Effects of Soil Temperature and Drought on Root–Soil Respiration in Apple under Field Conditions." HortScience 33, no. 3 (1998): 453a—453. http://dx.doi.org/10.21273/hortsci.33.3.453a.

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Root respiration is very important to root efficiency, root lifespan, and carbon cycling in plant ecosystems. Yet, the effects of soil temperature and moisture on root respiration are poorly understood, especially under field conditions. In this study, we manipulated soil temperature and moisture by six bearing `Red Chief' Delicious/M26 trees near State College, Pa. Soil temperature was elevated 5 °C at 5-cm depth using circulating hot water and stainless steel grids. Soil temperature was monitored using thermocouples and a data logger, and soil moisture was monitored using TDR. Root–soil resp

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12

Watson, Gary. "Organic Mulch and Grass Competition Influence Tree Root Development." Arboriculture & Urban Forestry 14, no. 8 (1988): 200–203. http://dx.doi.org/10.48044/jauf.1988.048.

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Root density, soil moisture content and soil oxygen diffusion rate (ODR) were measured under three soil surface treatments—grass, organic mulch and bare soil. Seven tree species were tested, green ash, little-leaf linden, pin oak, red oak, sugar maple, red maple and Norway maple. All trees were approximately 20 years old. Elimination of the grass resulted in consistent increases in tree root density at the 0 - 7.5 cm depth, except for the oaks. Application of mulch increased root densities in the soil beneath it. The layer of decomposing organic mulch also provided additional medium for root g

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13

Nordbotten, Jan Martin, Ignacio Rodriguez-Iturbe, and Michael A. Celia. "Non-uniqueness of evapotranspiration due to spatial heterogeneity of plant species." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 462, no. 2072 (2006): 2359–71. http://dx.doi.org/10.1098/rspa.2005.1641.

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Spatially averaged soil moisture dynamics are studied under seasonally fixed conditions. We consider rainfall as a marked Poisson process, uniformly covering a spatial domain consisting of multiple plant types. Each plant type is considered to have different characteristics in terms of evapotranspiration functions, root-zone depth and rainfall interception. Equations for the evolution of joint probability density functions for individual soil moistures associated with different plant types are developed, and the non-uniqueness of the spatially averaged evapotranspiration function as a function

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14

Tu, J. C. "Effects of soil compaction, temperature, and moisture on the development of the Fusarium root rot complex of pea in southwestern Ontario." Phytoprotection 75, no. 3 (2005): 125–31. http://dx.doi.org/10.7202/706059ar.

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The pea root rot complex (Fusarium spp.) is known to be affected by compaction, temperature, and moisture of the soils. This paper reports the effects of these factors on root rot severity and pea (Pisum sativum) growth tested in a controlled environment, using a Fusarium-infested soil collected from a field with a severe root rot history. For each factor, several increments were used. The results showed that in a controlled environment, an increase in soil bulk density due to compaction significantly increased root rot incidence and disease severity, and drastically reduced the fresh weight o

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15

J., M. Mulinge, M. Saha H., G. Mounde L., and A. Wasilwa L. "Effect of Legume Cover Crops on Soil Moisture and Orange Root Distribution." International Journal of Plant & Soil Science 16, no. 4 (2017): 1–11. https://doi.org/10.9734/IJPSS/2017/32934.

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Inadequate rain is a major hindrance to soil moisture and crop root growth in arid and semi-arid areas of Kenya. A field study was conducted in Ganda, Vitengeni and Matuga locations within the coastal lowland region of Kenya from May, 2012 to April, 2015 to evaluate the effects of three leguminous cover crops on soil moisture retention and orange tree feeder root distribution. Treatments included mucuna (<em>Mucuna pruriens</em>), cowpea (<em>Vigna unguiculata</em>), dolichos (<em>Lablab purpureus</em>) cover crops and unplowed fallow of natural vegetation as a control. The experiment was laid

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16

Miller, Gilbert, Ahmad Khalilian, Jeffrey W. Adelberg, Hamid J. Farahani, Richard L. Hassell, and Christina E. Wells. "Grafted Watermelon Root Length Density and Distribution under Different Soil Moisture Treatments." HortScience 48, no. 8 (2013): 1021–26. http://dx.doi.org/10.21273/hortsci.48.8.1021.

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Delineating the depth and extent of the watermelon [Citrullus lanatus (Thumb.) Matsum. & Nak.] root zone assists with proper irrigation management and minimizes nutrient leaching. The objective of this 3-year field study was to measure root distribution and root length density of watermelon (cv. Wrigley) grafted on two different rootstocks (Lagenaria siceraria cv. ‘FR Strong’ and Cucurbita moschata × Cucurbita maxima cv. Chilsung Shintoza) and grown under three soil moisture treatments. Irrigation treatments tested were: no irrigation (NI), briefly irrigated for fertigation and early-seaso

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17

Yu, Bingqin, Changkun Xie, Shize Cai, et al. "Effects of Tree Root Density on Soil Total Porosity and Non-Capillary Porosity Using a Ground-Penetrating Tree Radar Unit in Shanghai, China." Sustainability 10, no. 12 (2018): 4640. http://dx.doi.org/10.3390/su10124640.

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To explore the relationship between arbor root density and corresponding physical soil properties (total porosity, non-capillary porosity, specific weight, bulk density, moisture content, and permeability), noninvasive methods such as Tree Radar Unit (TRU) were utilized to detect the root systems of 10 species of tree that are commonly used in Shanghai green spaces with more than 70% frequency of occurrence. Using TRU and soil investigation, root density and soil porous features were determined for different tree species, depth slices, and distances. The relationships among root density, soil

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18

Lindau, Ralf, and Clemens Simmer. "Derivation of a root zone soil moisture algorithm and its application to validate model data." Hydrology Research 36, no. 4-5 (2005): 335–48. http://dx.doi.org/10.2166/nh.2005.0026.

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A retrieval algorithm for soil moisture within the uppermost metre of soil is presented. As calibration data, longtime soil moisture measurements from the former Soviet Union are used. The retrieval works in two steps. First, the distribution of longtime mean soil moisture is derived by using precipitation, soil texture, vegetation density and terrain slope. In a second step, the temporal variability at each location is deduced by using microwave radiation measurements available from satellite together with precipitation and air temperature data. This soil moisture algorithm is applied in Nort

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19

Thangaraj, M., J. C. O'Toole, and S. K. De Datta. "Root Response to Water Stress in Rainfed Lowland Rice." Experimental Agriculture 26, no. 3 (1990): 287–96. http://dx.doi.org/10.1017/s0014479700018445.

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SUMMARYThe relation between soil mechanical impedance as a result of soil drying, and root system growth (mass and length density) of rice was investigated in greenhouse and field studies. In a greenhouse experiment, soil drying for 16 days increased mechanical impedance in the 0–20 cm soil layer from near 0 to 2.5 MPa, and decreased root growth by 47% compared to the continuously flooded control. Root length density decreased with decreasing soil moisture and increasing soil mechanical impedance. In a lowland field experiment using a sprinkler irrigation gradient treatment for 19 days during

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Shi, Lei, Liangyan Yang, Biao Peng, et al. "Stability of Loess Slopes Under Different Plant Root Densities and Soil Moisture Contents." Water 16, no. 24 (2024): 3558. https://doi.org/10.3390/w16243558.

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This study conducted an in-depth analysis of the landslide problem in the loess hill and gully area in northern Shaanxi Province, selecting the loess landslide site in Quchaigou, Ganquan County, Yan’an City, as the object to assess the stability of loess slopes under the conditions of different plant root densities and soil moisture contents through field investigation, physical mechanics experiments and numerical simulation of the GeoStudio model. Periploca sepium, a dominant species in the plant community, was selected to simulate the stability of loess slope soils under different root densi

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Campora, Marina, Anna Palla, Ilaria Gnecco, Rossella Bovolenta, and Roberto Passalacqua. "The laboratory calibration of a soil moisture capacitance probe in sandy soils." Soil and Water Research 15, No. 2 (2020): 75–84. http://dx.doi.org/10.17221/227/2018-swr.

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Determining and mitigating landslide risk is a technical-scientific objective, particularly for the protection and proper territorial management and planning. The slope stability depends on the pore pressure distribution, which is influenced by the saturation front propagation through the unsaturated zone, whose monitoring is useful to understand any possible instabilities. Such monitoring may be undertaken by sensors based on the measurement of the relative dielectric permittivity. Reliable relationships between the measurement and the soil moisture are necessary. The main objective of this s

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Kuzychenko, Yu A., R. G. Gadzhiumarov, and A. N. Dzhandarov. "Combined tillage with elements of Strip-till technology for maize in the Ciscaucasian zone." Agrarian science 344, no. 1 (2021): 57–59. http://dx.doi.org/10.32634/0869-8155-2021-344-1-57-59.

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Relevance. The combined method of the main tillage, using certain methods of influence on the cultivated layer, forms a certain soil density. During the growing season of corn for grain, this indicator changes depending on the seasonal soil moisture and the intensity of the development of the root system of the plant, which is ultimately related to the yield of the crop. Material and method. The objects of research are two systems of basic tillage for corn for grain according to the predecessor winter wheat in the zone of unstable moisture of the Stavropol Territory using a dump and a combined

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23

Gaia-Gomes, João Henrique, Carlos Roberto Pinheiro Junior, Marcos Gervasio Pereira, Wilk Sampaio de Almeida, and Geuzimar Terração Silva. "Variability of soil physical and hydraulic properties along a toposequence in the coastal lowlands of Rio de Janeiro." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 16, no. 1 (2021): 1. http://dx.doi.org/10.4136/ambi-agua.2579.

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Soil physical and hydraulic properties are interdependent, and soil-use planning and management are complicated by the high variability of these attributes. The current study assessed the variability of physical and hydraulic properties of soils along a toposequence located in a forest fragment under spontaneous regeneration in the coastal lowlands of Rio de Janeiro. Four soil profiles were selected, and samples were collected from surface and subsurface horizons for determination of moisture content, bulk density, macroporosity, microporosity, hydraulic conductivity, texture, and soil resista

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Yunqi, Wang, Zhang Yinghua, Wang Zhimin, Tao Hongbin, Zhou Shunli, and Wang Pu. "Effects of winter wheat season tillage on soil properties and yield of summer maize." Plant, Soil and Environment 63, No. 1 (2017): 22–28. http://dx.doi.org/10.17221/692/2016-pse.

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The North China Plain (NCP) serves as China’s second most important maize production region. Rotary tillage, a popular method used in winter wheat/summer maize systems in the region, has adverse effects on maize production. The current study was conducted to determine whether rotary tillage after subsoiling in the winter wheat season (RS) improves the grain-filling rate and yield of summer maize by decreasing soil bulk density, when compared with rotary tillage (R), in the NCP. The RS treatment decreased soil bulk density and increased soil moisture in the summer maize season when compared wit

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Michot, Didier, Zahra Thomas, and Issifou Adam. "Nonstationarity of the electrical resistivity and soil moisture relationship in a heterogeneous soil system: a case study." SOIL 2, no. 2 (2016): 241–55. http://dx.doi.org/10.5194/soil-2-241-2016.

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Abstract. Understanding the role of vegetation in the interface between the atmosphere and groundwater is the most decisive key in analyzing the processes involved in water transfer. The main effect of vegetation is its root water uptake, which significantly modifies the processes involved in water transfer in the vadose zone. This paper focuses on mapping temporal and spatial changes in soil moisture using electrical resistivity tomography (ERT). The main objective is to assess how electrical resistivity (ER) is useful for mapping water distribution along a heterogeneous toposequence crossed

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Choi, Hyun-Sug, Curt Rom, and Jason McAfee. "(317) Effects of Different Organic Mulch on Soil Physical Characteristics and Leaf Nutrition in Apple Orchards." HortScience 40, no. 4 (2005): 1027D—1027. http://dx.doi.org/10.21273/hortsci.40.4.1027d.

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Mulch may affect soil chemistry, soil microclimate, biological communities, and tree performance. The trial was conducted to evaluate the effects of different orchard mulches on leaf nutrition, soil moisture, bulk density, root density, and water infiltration for understanding potential use in organic orchards for weed control and as a nutrient resource. Black plastic, hardwood chips, and shredded white paper were applied to three apple cultivars, `Gala', `Jonagold', and `Braeburn' on M.9 rootstocks. A control was sprayed with contact herbicide. Trees grown in hardwood mulch had the highest fo

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STYPA, M., A. NUNEZ-BARRIOS, D. A. BARRY, M. H. MILLER, and W. A. MITCHELL. "EFFECTS OF SUBSOIL BULK DENSITY, NUTRIENT AVAILABILITY AND SOIL MOISTURE ON CORN ROOT GROWTH IN THE FIELD." Canadian Journal of Soil Science 67, no. 2 (1987): 293–308. http://dx.doi.org/10.4141/cjss87-026.

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In a 4-yr study, root growth in the upper 50 cm of a silt loam soil (Gleyed Melanic Brunisol) was equal to or greater than that in a low-density artificial medium (soil:peat:perlite) in spite of a high bulk density in the soil (1.5 Mg m−3 in the 15-to 45-cm depth). We suggest that, due to the natural structure of the Bm horizon, the resistance to root growth is much less than would be expected from bulk density or penetrometer resistance measurements. Marked increases in P and K fertility in the surface soil had only minor effects on either the total length or distribution of roots although th

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Keisuke Sato, Michel, Herdjania Veras de Lima, Pedro Daniel de Oliveira, and Sueli Rodrigues. "Critical soil bulk density for soybean growth in Oxisols." International Agrophysics 29, no. 4 (2015): 441–47. http://dx.doi.org/10.1515/intag-2015-0050.

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Abstract The aim of this study was to evaluate the critical soil bulk density from the soil penetration resistance measurements for soybean root growth in Brazilian Amazon Oxisols. The experiment was carried out in a greenhouse using disturbed soil samples collected from the northwest of Para characterized by different texture. The treatments consisted of a range of soil bulk densities for each soil textural class. Three pots were used for soybean growth of and two for the soil penetration resistance curve. From the fitted model, the critical soil bulk density was determined considering the pe

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Magha, Alice Mufur, Primus Azinwi Tamfuh, Lionelle Estelle Mamdem, Marie Christy Shey Yefon, Bertrand Kenzong, and Dieudonné Bitom. "Soil Water Characteristics of Gleysols in the Bamenda (Cameroon) Wetlands and Implications for Agricultural Management Strategies." Applied and Environmental Soil Science 2021 (March 13, 2021): 1–15. http://dx.doi.org/10.1155/2021/6643208.

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Water budgeting in agriculture requires local soil moisture information as crops depend mainly on moisture available at root level. The present paper aims to evaluate the soil moisture characteristics of Gleysols in the Bamenda (Cameroon) wetlands and to evaluate the link between soil moisture content and selected soil characteristics affecting crop production. The work was conducted in the field and laboratory, and data were analyzed by simple descriptive statistics. The main results showed that the soils had a silty clayey to clayey texture, high bulk density, high soil organic carbon conten

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Wan, Fa, Wenyong Wu, Renkuan Liao, and Yong Wang. "Spatiotemporal Distribution of Water and Nitrogen in Border Irrigation and Its Relationship with Root Absorption Properties." Water 14, no. 8 (2022): 1253. http://dx.doi.org/10.3390/w14081253.

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The spatiotemporal distribution characteristics of water and nitrogen in the soil profile are essential influencing factors that determine the development of crop root systems. The purpose of this study was to clarify the inter-row and inter-tree variability in soil moisture in the apple root zone, and to determine the effective root diameter ranges of apple trees that influence water and nitrogen absorption. The method used was a 2-year border irrigation experiment carried out in a traditional apple orchard in Zuncun, Shanxi Province, China. Dynamic variations in the soil moisture between tre

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Beltrán-Conlag, Andrea Carolina, Marvi Licuy-Chimbo, Zully Margarita López-Grefa, and Ricardo Abril-Saltos. "Capacidad de infiltración de especies forestales en la cuenca alta del río Pindo, Amazonía ecuatoriana." Revista Científica Zambos 4, no. 1 (2025): 376–86. https://doi.org/10.69484/rcz/v4/n1/96.

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This study was carried out in the upper basin of the Pindo River, Luz Adriana sector, Shell parish, Mera canton, Pastaza province, with the objective of identifying forest species that promote water infiltration. The species Piptocoma discolor (Pigue) and Cecropia peltata (Guarumo) were selected through a forest inventory. Data were collected on diameter at breast height (DBH), infiltration tests and edaphic characteristics, including soil texture, bulk density, moisture content and root density. The analyses revealed that there are no significant differences between species in terms of infilt

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Machado, Lorena, Francisco Sandro Rodrigues Holanda, Alceu Pedrotti, Olavo José Marques Ferreira, Renisson Neponuceno de Araújo Filho, and Marks Melo Moura. "EFFECT OF VETIVER ROOTS ON SOIL RESISTANCE TO PENETRATION IN A TYPIC FLUVIC NEOSSOL IN THE SÃO FRANCISCO RIVERBANK." Revista Caatinga 31, no. 4 (2018): 935–43. http://dx.doi.org/10.1590/1983-21252018v31n416rc.

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ABSTRACT The aim of this study was to evaluate the effect of the root of vetiver grass (Chrysopogon zizanioides (L.) Robert) on the soil Resistance to penetration (RP) in the margins of the lower São Francisco River. Vetiver grass seedlings were planted on the riverbank margins in order to increase soil resistance to erosion processes, and RP assessments were made at soil depths of 0-0.20, 0.20-0.40, and 0.40-0.60 m in different situations (near the plants and within rows). RP data was obtained using an automated penetrometer. Gravimetric moisture data was also collected, as well as particle s

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Astutik, Dwi, Prapto Yudono, and Sriyanto Waluyo. "The Growth of Two Cultivars Mung Bean under different Sweet Corn Shelter Density in Sandy Soil Coastal Area." Ilmu Pertanian (Agricultural Science) 2, no. 3 (2018): 106. http://dx.doi.org/10.22146/ipas.26703.

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The experiment had been conducted from August to November 2016 at Samas sandy soil coastal area. The research aimed to determine growth response of mung bean sheltered by various density of sweet corn on coastal sandy soil. The experiment used the nested design with two factors with three replications.The first factor was density of sweet corn as shelter consisting of without shelter (S0), planting space of 15 × 40 cm (S1), and planting space of 30 × 40 cm (S2). The second factor was mung bean cultivars compiled of Vima 1 (V1) and Purworejo local cultivar (V2). The data of soil temperature, so

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Bardhan, Abidhan, Raushan Kumar Singh, Sufyan Ghani, Gerasimos Konstantakatos, and Panagiotis G. Asteris. "Modelling Soil Compaction Parameters Using an Enhanced Hybrid Intelligence Paradigm of ANFIS and Improved Grey Wolf Optimiser." Mathematics 11, no. 14 (2023): 3064. http://dx.doi.org/10.3390/math11143064.

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The criteria for measuring soil compaction parameters, such as optimum moisture content and maximum dry density, play an important role in construction projects. On construction sites, base/sub-base soils are compacted at the optimal moisture content to achieve the desirable level of compaction, generally between 95% and 98% of the maximum dry density. The present technique of determining compaction parameters in the laboratory is a time-consuming task. This study proposes an improved hybrid intelligence paradigm as an alternative tool to the laboratory method for estimating the optimum moistu

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Konôpka, B., L. Pagès, and C. Doussan. "Impact of soil compaction heterogeneity and moisture on maize (Zea mays L.) root and shoot development." Plant, Soil and Environment 54, No. 12 (2008): 509–19. http://dx.doi.org/10.17221/429-pse.

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Soil compaction heterogeneity and water content are supposed to be decisive factors influencing plant growth. Our experiment focused on simulation of two soil moisture levels (0.16 and 0.19 g/g) plus two levels of clod proportion (30 and 60% volume) and their effects on root and leaf variables of maize (<I>Zea mays</I> L.). We studied number of primary and lateral roots as well as primary root length at the particular soil depths. Statistical tests showed that the decrease rate of the number of roots versus depth was significantly affected by the two studied factors (<I>P<

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Srinivas, Jinukala, P. R. Jayan, and N. L. Kalyan Chakravarthi. "Study of Soil and Crop Parameters of Coconut Orchard for Design of Tractor Operated Coconut Basin Lister Cum Fertilizer Applicator." International Journal of Plant & Soil Science 35, no. 11 (2023): 9–15. http://dx.doi.org/10.9734/ijpss/2023/v35i112940.

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Aims: To study the soil and crop parameters of coconut orchard for the design of tractor operated coconut basin lister cum fertilizer applicator. Place and Duration of Study: The study was conducted in Instructional Farm, KCAET in the Year 2021. Methodology: Soil parameters such as moisture content, bulk density, cone index and shear strength; crop parameters such as trunk diameter and root zone depth of coconut palm were studied using standard procedures to design tractor operated coconut basin lister cum fertilizer applicator. Results: The soil moisture content varied from

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Liu, Wei Yi, Shao Hui Fan, Guang Lu Liu, and Feng Ying Guan. "The Relationship between Soil Moisture and Root Density under Different Types Phyllostachys edulis Forests in Northern Fujian." Advanced Materials Research 1073-1076 (December 2014): 1090–94. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.1090.

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The soil moisture of three typical P. edulis forests (P. edulis and Cunninghamia lanceolata mixed forest, P. edulis pure forest , P. edulis and broad-leaved tree mixed forest ) in the North of Fujian province were studied in comparison with C. lanceolata pure forest and evergreen broad-leaved forest. Based on the routine observation, characteristics of spatial and temporal change of soil water content were studied. According to the roots distribution which were analyzed on different forest stand, the Linear and relationship model were established about the soil water and roots distribution. Re

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Day, Susan D., John R. Seiler, Richard Kreh, and David W. Smith. "Overlaying compacted or uncompacted construction fill has no negative impact on white oak and sweetgum growth and physiology." Canadian Journal of Forest Research 31, no. 1 (2001): 100–109. http://dx.doi.org/10.1139/x00-145.

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Raising the soil grade, frequently required during building construction, is thought to damage trees and is of concern to foresters responsible for tree protection on such sites. We investigated the effects of applying fill over the roots of 22-year-old white oaks (Quercus alba L.) and 13-year-old sweetgums (Liquidambar styraciflua L.). Treatments included a control (no fill), fill (sandy loam C horizon soil spread 20 cm deep), and compacted fill (same as fill but compacted). Trees with fill had soil held away from trunks or not. After 3 years, there was no consistent treatment effect on growt

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SHAINIDZE, OTARI, NODAR BERIDZE, SHOTA LAMPARADZE, et al. "Effect of temperature and moisture on soil pathogen Fusarium solani of lemon in Adjara, Georgia." Journal of Agrometeorology 26, no. 4 (2024): 477–84. https://doi.org/10.54386/jam.v26i4.2685.

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The research was conducted in the 2022 and 2023 seasons in the agrometerology and plant protection laboratory and citrus greenhouse of Batumi Shota Rustaveli State University, the aim of which was groupe and unit role of temperature and soil moisture (SM) content on aggressive soil pathogen F. solani on lemon, also effects of pathogen density and soil moisture on belowground and aboveground morphological traits. In our study, we could find that the both temperature and soil moisture played a decisive role in influencing the root rot disease scenario. As per the disease susceptibility index (DS

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Michot, D., Z. Thomas, and I. Adam. "Non-stationarity of electrical resistivity and soil moisture relationship in heterogeneous soil system: a case study." SOIL Discussions 2, no. 2 (2015): 955–94. http://dx.doi.org/10.5194/soild-2-955-2015.

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Abstract. Root uptake is the most decisive key in water transfer involving soil and vegetation. It depends on water availability which can be evaluated by punctual measurements. Additionally, surface geophysical methods such as Electrical Resistivity Tomography (ERT) provide larger spatial scales. This paper focuses on investigating temporal and spatial soil moisture changes, along a toposequence crossed by a hedgerow, using ERT and punctual measurements. 10 ERT were performed over the studied period for a 28 m long transect and compared to matric potential and groundwater level measurements.

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Albergel, C., C. Rüdiger, T. Pellarin, et al. "From near-surface to root-zone soil moisture using an exponential filter: an assessment of the method based on in-situ observations and model simulations." Hydrology and Earth System Sciences Discussions 5, no. 3 (2008): 1603–40. http://dx.doi.org/10.5194/hessd-5-1603-2008.

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Abstract. A long term data acquisition effort of profile soil moisture is under way in southwestern France at 13 automatic weather stations. This ground network was developed in order to validate remote sensing and model soil moisture estimates. In this paper, both those in situ observations and a synthetic data set covering continental France are used to test a simple method to retrieve the root zone soil moisture from a time series of surface soil moisture information. A recursive exponential filter equation using a time constant, T, is used to compute a soil water index. The Nash and Sutcli

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Albergel, C., C. Rüdiger, T. Pellarin, et al. "From near-surface to root-zone soil moisture using an exponential filter: an assessment of the method based on in-situ observations and model simulations." Hydrology and Earth System Sciences 12, no. 6 (2008): 1323–37. http://dx.doi.org/10.5194/hess-12-1323-2008.

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Abstract. A long term data acquisition effort of profile soil moisture is under way in southwestern France at 13 automated weather stations. This ground network was developed in order to validate remote sensing and model soil moisture estimates. In this paper, both those in situ observations and a synthetic data set covering continental France are used to test a simple method to retrieve root zone soil moisture from a time series of surface soil moisture information. A recursive exponential filter equation using a time constant, T, is used to compute a soil water index. The Nash and Sutcliff c

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Watson, Gary, and Gary Kupkowski. "Effects of a Deep Layer of Mulch on the Soil Environment and Tree Root Growth." Arboriculture & Urban Forestry 17, no. 9 (1991): 242–45. http://dx.doi.org/10.48044/jauf.1991.056.

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After two years, no detrimental effects were found from application of 0.45 m (18 in) of wood chip mulch over soil in which the roots of trees were growing. Soil temperature, moisture and oxygen diffusion rate (ODR) were similar to soil without mulch. Root density in mulched soil was not different from unmulched soil; additional roots had proliferated into the mulch.

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Valicheski, Romano Roberto, Suzi Mari Brandelero, David José Miquelutti, Sidnei Leandro K.Stürmer, Antonio Luis Tramonti, and Marcos Cesar Franzão. "Absorption of primary macronutrients and soybean growth at different compactation densities and moisture levels in a silt loam soil." Revista Ceres 63, no. 2 (2016): 223–31. http://dx.doi.org/10.1590/0034-737x201663020014.

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ABSTRACT Soybean cultivation is increasing rapidly in the region of Alto Vale do Itajaí, State of Santa Catarina, where there is a predominance of silt soils. The objective of this work was to evaluate the content of primary macronutrients in shoots and shoot and root vegetative growth of soybean (Glicine max L. Merrill) grown in a silt-loam soil under different compactation densities and moisture levels. A randomized block design in a 4x4 factorial arrangement was used, with four compactation densities: 1.00; 1.20; 1.40 and 1.60 Mg m-3, and four soil moisture levels: 0.130; 0.160; 0.190 and 0

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Mehra, Promil, Pankaj Kumar, Nanthi Bolan, Jack Desbiolles, Susan Orgill, and Matthew D. Denton. "Changes in soil-pores and wheat root geometry due to strategic tillage in a no-tillage cropping system." Soil Research 59, no. 1 (2021): 83. http://dx.doi.org/10.1071/sr20010.

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Tillage management can influence soil physical properties such as soil strength, moisture content, temperature, nutrient and oxygen availability, which in turn can affect crop growth during the early establishment phase. However, a short-term ‘strategic’ conventional tillage (CT) shift in tillage practice in a continuous no-tillage (NT) cropping system may change the soil-pore and root geometry. This study identifies the impact of a tillage regime shift on the belowground soil-pore and root geometry. Micro X-ray computed tomography (µXCT) was used to quantify, measure and compare the soil-pore

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M. H., Abdel-Aal. "Effect of tillage practices at different levels of soil moisture on some soil properties and maize productivity." International Journal of Agricultural Invention 5, no. 01 (2020): 1–15. http://dx.doi.org/10.46492/ijai/2020.5.1.1.

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A field experiment was carried out during the early summer seasons of 2018, at Agricultural Research Centre (ARC) Giza, Egypt. This study aims to examine the effect of three tillage treatments under three different moisture contents on some soil properties and on maize crop production. The experiments included three moisture contents of (MC1, 27.2 %), (MC2, 15.4 %) and (MC3, 7.2 %); as well as three tillage treatments, no-tillage control (NT), minimum tillage (MT) and conventional tillage (CT). The experimental was laid out in split-split plot design with four replications. The results showed

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Abdel-Aal, M. H. "Effect of tillage practices at different levels of soil moisture on some soil properties and maize productivity." Effect of tillage practices at different levels of soil moisture on some soil properties and maize productivity 5, no. 1 (2020): 1–15. https://doi.org/10.46492/IJAI/2020.5.1.1.

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A field experiment was carried out during the early summer seasons of 2018, at Agricultural Research Centre (ARC) Giza, Egypt. This study aims to examine the effect of three tillage treatments under three different moisture contents on some soil properties and on maize crop production. The experiments included three moisture contents of (MC1, 27.2 %), (MC2, 15.4 %) and (MC3, 7.2 %); as well as three tillage treatments, no-tillage control (NT), minimum tillage (MT) and conventional tillage (CT). The experimental was laid out in split-split plot design with four replications. The results showed

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Zhang, Shuzhen, Yuqi Wei, Nan Liu, et al. "Mowing Facilitated Shoot and Root Litter Decomposition Compared with Grazing." Plants 11, no. 7 (2022): 846. http://dx.doi.org/10.3390/plants11070846.

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Shoot and root litter are two major sources of soil organic carbon, and their decomposition is a crucial nutrient cycling process in the ecosystem. Altitude and land use could affect litter decomposition by changing the environment in mountain grassland ecosystems. However, few studies have investigated the effects of land use on litter decomposition in different altitudes. We examined how land-use type (mowing vs. grazing) affected shoot and root litter decomposition of a dominant grass (Bromus inermis) in mountain grasslands with two different altitudes in northwest China. Litterbags with 6

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Smith, Karen, Peter May, and Gregory Moore. "The Influence of Compaction and Soil Strength on the Establishment of Four Australian Landscape Trees." Arboriculture & Urban Forestry 27, no. 1 (2001): 1–7. http://dx.doi.org/10.48044/jauf.2001.001.

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Two experiments were conducted to test the hypothesis that trees able to establish in urban soils will have a higher-than-average tolerance to the higher mechanical impedance and soil strength of compacted soils. Experiment 1 tested the ability of the roots of Corymbia metadata (spotted gum, syn. Eucalyptus maculata), Lophostetnon confertus (brush box), Corymbia ficijolia (red flowering gum, syn. Eucalyptus ficifolia), and Agonis flexuosa (willow myrtle) seedlings to penetrate a sandy loam soil compacted to bulk densities of 1.4 and 1.8 mg • m~3 at 13% gravimetric moisture content. While roots

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Fu, Jiang-Tao, Xia-Song Hu, Xi-Lai Li, Ji-Mei Zhao, Guang-Yan Xing, and Chang-Yi Liu. "Impact of Meadow Degradations on the Probabilistic Distribution Patterns of Physical and Mechanical Indices of Rooted Soil in the Upper Regions of the Yellow River, China." Water 16, no. 9 (2024): 1205. http://dx.doi.org/10.3390/w16091205.

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The shear strength (particularly soil cohesion) of rooted soil is an important parameter that reflects the true erodibility of meadows, particularly in meadows experiencing different degrees of degradation, ranging from undegraded (UD) through to lightly degraded (LD) and from moderately degraded (MD) to heavily degraded (HD). The cohesion of rooted soil is controlled not only by the soil moisture content and its natural density, but also by roots (including not only their density, spatial distribution, and diameters, but also their tensile strength). This study aimed to improve the current un

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