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Journal articles on the topic 'Phytomasse'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Diawara, Mamadou Oumar, Pierre Hiernaux, Eric Mougin, Manuela Grippa, Claire Delon, and Hawa Salif Diakité. "Effets de la pâture sur la dynamique de la végétation herbacée au Sahel (Gourma, Mali) : une approche par modélisation." Cahiers Agricultures 27, no. 1 (2018): 15010. http://dx.doi.org/10.1051/cagri/2018002.

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Au Sahel, la végétation se compose d’une strate herbacée principalement composée de plantes annuelles et d’une strate ligneuse peu dense dominée par des épineux. Dans cette région, l’essentiel de la production fourragère a lieu entre juillet et septembre. Le disponible fourrager constitué au cours de cette courte période décroît durant les neuf mois de la saison sèche sous l’effet de plusieurs facteurs, dont la pâture des ruminants domestiques. Les effets de la pâture sur la dynamique saisonnière de la phytomasse herbacée ont fait l’objet de peu d’études au Sahel. La dynamique de saison sèche

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2

Armand, D., M. Etienne, C. Legrand, J. Marechal, and JC Valette. "Phytovolume, phytomasse et relations structurales chez quelques arbustes méditerranéens." Annales des Sciences Forestières 50, no. 1 (1993): 79–89. http://dx.doi.org/10.1051/forest:19930106.

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3

Idrissou, Y., Youssoufa Mama Sambo Seidou, A. Assani Seidou, et al. "Influence du pâturage et du gradient climatique sur la diversité floristique et la productivité des parcours naturels au Bénin." Revue d’élevage et de médecine vétérinaire des pays tropicaux 73, no. 3 (2020): 161–67. http://dx.doi.org/10.19182/remvt.31894.

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Située dans la zone soudanienne du Bénin, la forêt classée de l’Alibori supérieur est à cheval entre le climat tropical humide et le climat tropical sec. Elle est l’une des destinations privilégiées des transhumants nationaux et étrangers. Ces derniers sont attirés par ses ressources pastorales. Les fortes concentrations de bétail présentes ont des conséquences sur la biodiversité qu’il importe de connaître afin de prendre les décisions appropriées. Cette étude a eu pour objectif d’évaluer l’influence de l’intensité du pâturage et du gradient climatique sur la richesse et la diversité floristi

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4

Bornkamm, Reinhard. "Veränderungen der Phytomasse in den ersten zwei Jahren einer Sukzession auf unterschiedlichen Böden." Flora 179, no. 3 (1987): 179–92. http://dx.doi.org/10.1016/s0367-2530(17)30238-4.

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5

Mamadou, Maïmounatou Ibrahim, Maman Kamal Abdou Habou, Habou Rabiou, and Ali Mahamane. "Phytodiversité et productivité herbacée du futur site de pré-lâché d’autruche d’Afrique du Nord (Struthio camelus camelus L.) dans le Koutous, Niger." International Journal of Biological and Chemical Sciences 14, no. 2 (2020): 402–16. http://dx.doi.org/10.4314/ijbcs.v14i2.8.

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L’autruche d’Afrique du Nord (Struthio camelus camelus) communément appelée autruche à cou rouge a disparu à l’état naturel au Niger depuis 2004. Le présent article est une contribution au processus de réintroduction de cette espèce, qui vise à caractériser la végétation du site dénommé « Tchillala » dans le Koutous, site pilote pour le pré-lâché de l’autruche. Les relevés phytosociologiques ont été effectués à l’aide de la méthode sigmatiste d’abondance-dominance de Braun-Blanquet dans 42 placettes de 1000 m² (50 m × 20 m). Dans chaque placette, la coupe de la phytomasse herbacée a été réalis

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6

Laquerbe, Marc. "Communautés de sous-bois des peupleraies artificielles : relation entre phytomasse, richesse spécifque et perturbations." ANNALS OF FOREST SCIENCE 56, no. 7 (1999): 607–14. http://dx.doi.org/10.1051/forest:19990708.

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7

Leonardi, Salvatore. "Production de phytomasse aérienne dans les principaux peuplements forestiers du massif de l'Etna (Sicile, Italie)." Acta Botanica Gallica 152, no. 4 (2005): 507–17. http://dx.doi.org/10.1080/12538078.2005.10515510.

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8

Sach, Wiebke, and Joachim Schrautzer. "Phytomasse- und Nährstoffdynamik sowie floristische Veränderungen von Knickfuchsschwanz-Flutrasen (Ranunculo-Alopecuretum geniculati Tx. 37) unter extensiver Nutzung." Flora 189, no. 1 (1994): 37–50. http://dx.doi.org/10.1016/s0367-2530(17)30566-2.

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9

Agonyissa, D., and Brice A. Sinsin. "Productivité et capacité de charge des pâturages naturels au Bénin." Revue d’élevage et de médecine vétérinaire des pays tropicaux 51, no. 3 (1998): 239–46. http://dx.doi.org/10.19182/remvt.9628.

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Cette étude a été réalisée dans les pâturages soudano-guinéens de la forêt classée de Wari Maro au centre du Bénin. Quatre types de pâturage y ont été distiCette étude a été réalisée dans les pâturages soudano-guinéens de la forêt claes à Schizachyrium sanguineum et Sorghastrum bipennatum des dépressions, des savanes à Andropogon schirensis et A. chinensis, des savanes à Pennisetum unisetum et Chasmopodium caudatum et enfin des jachères à Pennisetum polystachion et Andropogon gayanus. La biomasse produite en fin de saison pluvieuse a varié de 3,45 ± 0,50 à 5,19 ± 0,86 t MS/ha. La biomasse la p

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10

Laquerbe, Marc. "Richesse sp�cifique et phytomasse des sous-bois de peupleraies cultiv�es en bordure de Garonne (Sud-Ouest de la France)." Annals of Forest Science 57, no. 8 (2000): 767–76. http://dx.doi.org/10.1051/forest:2000154.

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11

Bouallala, M., and A. Chehma. "Equations d'Estimation de la Phytomasse Aerienne des Plantes Spontanees Perennes Broutees par le Dromadaire au Sahara Nord-Occidental Algerien = Prediction Equation for Determining the Phytomass of Spontaneous Perennial Plants Grazed by the Dromedary in the North Western Sahara of Algeria." Revue des Bioressources 5, no. 1 (2015): 29–36. http://dx.doi.org/10.12816/0045872.

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12

Amrani, Ouarda, and Abd Elmadjid Chehma. "Plantations d’ Atriplex canescens en vue de la restauration des parcours dégradés en steppe algérienne." Revue d’élevage et de médecine vétérinaire des pays tropicaux 73, no. 2 (2020): 113–21. http://dx.doi.org/10.19182/remvt.31879.

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La steppe algérienne est le milieu d’élevage du mouton par l’exploitation de ses parcours. Dans sa partie aride, la vulnérabilité du milieu est aggravée par une exploitation principalement pastorale de plus en plus intense durant ces dernières décennies. Cette tendance régressive est caractérisée par une baisse dela productivité fourragère et les espèces pérennes sont les plus touchées. L’Etat algérien a mis en oeuvre un programme d’aménagement des espaces steppiques très dégradés à travers la plantation d’espèces végétales résistantes et productives de biomasse comme Atriplex spp. L’objectif

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13

Mbaye, Tamsir, Ababacar Ndiaye, Mamadou Sow, et al. "Caractéristiques de la végétation herbacée de trois jeunes plantations de baobabs (Adansonia digitata L.) en Moyenne et Haute Casamance, Sénégal." Revue d’élevage et de médecine vétérinaire des pays tropicaux 73, no. 3 (2020): 213–20. http://dx.doi.org/10.19182/remvt.36314.

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L’étude a été réalisée dans les régions de Kolda et de Sédhiou, en Haute et Moyenne Casamance, dans de jeunes plantations de baobabs (Adansonia digitata L.) installées en 2014 pour raccourcir le cycle de production afin de réduire la pression exercée sur les populations adultes de baobabs, de plus en plus menacées. L’objectif était d’évaluer l’influence des plantations de baobabs sur la diversité et la production de biomasse du tapis herbacé selon les localités. Les plantations ont été constituées de parcelles clôturées de 0,5 hectare chacune, subdivisées en trois blocs. Chaque bloc a été subd

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14

Idrissa, I., Idrissa Soumana, Ali Alhassane, Boubé Morou, and A. Mahamane. "Caractérisation des ressources herbagères de l’enclave pastorale de Dadaria (Mainé-Soroa, Diffa) au Niger." Revue d’élevage et de médecine vétérinaire des pays tropicaux 73, no. 3 (2020): 179–89. http://dx.doi.org/10.19182/remvt.31889.

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Cette étude a consisté à caractériser les pâturages de l’enclave pastorale de Dadaria en termes de diversité floristique, valeur pastorale, productivité et capacité de charge. Un inventaire floristique de la végétation herbacée a été réalisé sur 53 placettes du sud au nord. Les résultats ont montré que le site comportait 93 espèces dont 83 herbacées réparties dans 30 familles et 63 genres. La flore était largement dominée par les Poaceae, et le type biologique le plus abondant et le plus dominant était celui des thérophytes. Le spectre fourrager a montré que la valeur pastorale a varié de 60 %

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15

Heyojoo, B. P., and S. Nandy. "Estimation of above-ground phytomass and carbon in tree resources outside the forest (TROF): A geo-spatial approach." Banko Janakari 24, no. 1 (2015): 34–40. http://dx.doi.org/10.3126/banko.v24i1.13488.

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This study aims to estimate above-ground phytomass and carbon of TROF ecosystem in part of Bijnor district in Uttar Pradesh state of India using IRS P6 LISS-IV satellite image by geo-spatial approach coupled with field sampling. Chacko’s formula was referred to compute number of samples in each TROF types and the sample plot size in each stratum was adopted from Vegetation Carbon Project (VCP) under National Carbon Project (NCP). With the help of field data consisting mainly the height and girth information, volume of each individual tree per plot was obtained using site and tree species-speci

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16

Issoufa, Idrissa, Morou boubé, Abdoulaye Diouf, Saley Karim, and Ali Mahamane. "Caractérisation des pâturages herbacés sahéliens à accès limité : Cas du Centre Secondaire de Multiplication de Bétail de Sayam (Diffa)." Journal of Applied Biosciences 156 (December 26, 2020): 16095–113. http://dx.doi.org/10.35759/jabs.156.4.

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Objectifs : Cette étude vise à caractériser l’état actuel des pâturages herbacés du Centre Secondaire de Multiplication de Bétail de Sayam. Méthodologie et Résultats : Quatre groupements pastoraux ont été identifiés et décrits à partir de 56 relevés linéaires réalisés sur un transect Sud - Nord. Au total 98 espèces herbacées réparties parmi 59 genres et 27 familles botaniques ont été répertoriées. Les genres suivants : Eragrostis, Ipomoea, Aristida, Cenchrus, Indigofera, Digitaria et Brachiaria ont été les mieux représentés. Ils représentent environ 50% du total et renferment l’essentiel des e

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17

Patil, P., D. Dutta, C. Biradar, and M. Singh. "Quantification of the terrestrial phytomass and carbon in the mountainous forest ecosystem using remote sensing and in-situ observations." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-7/W3 (April 29, 2015): 483–87. http://dx.doi.org/10.5194/isprsarchives-xl-7-w3-483-2015.

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The aim of this research was to develop an understanding of how mountainous forests function in relation to forest phytomass and carbon accumulation in the terrestrial vegetation pools which will help develop options for climate change. In this study, the forest phytomass has been assessed in range of subtropical and temperate forest dominated by tree species of <i>Quercus semicarpifolia</i> Sm. and <i>Pinus roxburghii Sarg</i> in Himalayan region Purola tehsil in Uttarkashi district of Uttarakhand state of India. <i>In-situ</i> measurements of the phytomass

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18

Olson, B. E., R. T. Wallander, and J. M. Beaver. "Comparing nondestructive measures of forage structure and phytomass." Canadian Journal of Plant Science 80, no. 3 (2000): 565–73. http://dx.doi.org/10.4141/p99-073.

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Nondestructive radiative transfer and canopy volume methods were compared with the destructive hand-clipping method to determine forage structure and phytomass. On a native range site, fifteen 1-m2 circular plots were located at each of five microsites. On a crested wheatgrass site, thirty 1-m2 plots were located in grazed and in ungrazed areas. At peak standing crop, all plots were measured with a LI-COR Plant Canopy Analyzer to determine leaf area index (LAI), diffuse non-intercepted radiation (DNIR), and mean tilt angle (MTA) of leaves. Then, plants within plots were measured with a ruler t

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19

Joubert, A. J., and W. J. Myburgh. "A Comparison of Three Dry Matter Forage Production Methods Used in South Africa." International Journal of Ecology 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/314939.

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A common method for determining forage production of rangelands is by clipping and weighing forage from quadrats with predetermined areas. This technique is however time consuming. Other techniques which require less time and labour include amongst others using the disk pasture meter or phytomass derived from the vegetation classification program PHYTOTAB, in conjunction with the Plant Number Scale, which is used to determine vegetation canopy cover. The phytomass determined using PHYTOTAB/Plant Number Scale and the disk pasture meter was compared to the phytomass obtained from the actual clip

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20

Illéš, Ladislav, Eva Candráková, Richard Pospišil, and Jozef Žembery. "THE INFLUENCE OF YEAR-ROUND WEATHER CONDITIONS AND FERTILIZATION ON THE PHYTOMASS YIELD OF AMARANTH (AMARANTHUS L.)." Acta Regionalia et Environmentalica 10, no. 2 (2013): 71–74. http://dx.doi.org/10.2478/aree-2013-0015.

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Abstract In the years 2010 and 2011, a field trial was established in the administrative area Kolinany, Barack farm. We evaluated the growth of aboveground phytomass depending on different levels of fertilization. In the climatically unbalanced growing years, the phytomass yield of amaranth was different. Extremely wet conditions during the growing season exceeding long-term normal precipitation confirmed the assumption of high growth of aboveground phytomass in the observed amaranth genotype. In 2010, the highest amaranth aboveground dry matter in phytomass reached 3231.40 g m2 in the variant

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Strašil, Z., V. Váňa, and M. Káš. "The reed canary grass (Phalaris arundinacea L.) cultivated for energy utilization." Research in Agricultural Engineering 51, No. 1 (2012): 7–12. http://dx.doi.org/10.17221/4895-rae.

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The reed canary grass as a source of energy was tested in field experiments on small plots at three different sites in 1996&ndash;2003. The effects of soil and weather conditions, different times of harvest (July, November, March) and different doses of nitrogen fertilization (0, 30, 60 kg/ha) on yields of phytomass were investigated. The effects of the harvest time on the water content in harvested phytomass, loss of phytomass in different harvest period and the content of basic nutrients and heavy metals in plants were all specified. The influence of the year, site and N fertilization on

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22

Costa, Thomaz Corrêa e. Castro da, Luciano José de Oliveira Accioly, Maria Ap José de Oliveira, Nivaldo Burgos, and Flávio Hugo Barreto Batista da Silva. "Phytomass mapping of the "seridó caatinga" vegetation by the plant area and the normalized difference vegetation indeces." Scientia Agricola 59, no. 4 (2002): 707–15. http://dx.doi.org/10.1590/s0103-90162002000400014.

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Phytomass is a critical information for economic and environmental activities like the establishment of policies for timber resources, forest management, studies of plant nutrient cycling, CO2 sink, among other. The phytomass of a Caatinga area was obtained by an empirical method using normalized difference vegetation index (NDVI) of Landsat images, the plant area index (PAI) and the phytomass inventory. At a first stage, linear, logarithmic and non-linear models were developed and tested. Bush and tree specimens were considered in the study, so that most of the individuals that contribute to

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23

Bonifácio, Benedito F., Reginaldo G. Nobre, Hans R. Gheyi, et al. "Effect of Salinity and Potassium on Phytomass and Quality of Guava Rootstocks." Journal of Agricultural Science 10, no. 2 (2018): 308. http://dx.doi.org/10.5539/jas.v10n2p308.

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Potassium fertilization is one of the main techniques that has been studied to mitigateeffects of salt stress in plants, probably because potassium reduces the toxic effect of sodium by competitive inhibition and provides greater tolerance to genotypes of plants to salinity. Hence, this study aimed to evaluate the effect of different salinities of irrigation water in the formation of phytomass and quality of rootstocks of guava cv. Paluma, fertilized with increasing doses of potassium, in an experiment conducted using eutrophic Fluvic Neosol with sandy loam texture under greenhouse conditions,

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24

Morrison, I. K. "Organic matter and mineral distribution in an old-growth Acersaccharum forest near the northern limit of its range." Canadian Journal of Forest Research 20, no. 9 (1990): 1332–42. http://dx.doi.org/10.1139/x90-177.

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Two sites, both supporting old-growth Acersaccharum Marsh, dominated forest on rugged topography in central northern Ontario, were compared in terms of organic matter and N, P, K, Ca, Mg, S, Fe, Mn, Zn, and Cu content in the tree- and field-layer phytomass, the forest floor, and the mineral soil. One site was on a shallow, low-base, Precambrian-derived till, and the other was on a till of somewhat higher base status. Gross and net growth of the overstory tree layer were also determined. Total phytomass values for the two stands at the beginning of the study period were 245 000 and 210 000 kg•h

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Al-Mosanif, Esmail, Karel Vejražka, Miroslav Jůzl, and Karel Drápal. "Root system size of alfalfa varieties under different plant densities." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 60, no. 1 (2012): 9–16. http://dx.doi.org/10.11118/actaun201260010009.

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The field experiment was established from pre-grown alfalfa sprouts in 2008. In 2009 and 2010, the harvest was carried out. The yield and the root size system (RSS) were evaluated in the total of five cuts. Two localities of diverse soil and weather conditions were selected. Žabčice is a dry location with a highly permeable sandy soil layer, but at the same time, with a considerable fluctuation of the underground water level; Troubsko, on the other hand, represented a location with a higher content of clay in soil suitable for growing alfalfa. The trial was established in two types of plant sp

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FRAHM, JAN-PETER. "Bryophyte phytomass in tropical ecosystems." Botanical Journal of the Linnean Society 104, no. 1-3 (1990): 23–33. http://dx.doi.org/10.1111/j.1095-8339.1990.tb02209.x.

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27

Dusaeva, G. Kh, O. G. Kalmykova, and N. V. Dusaeva. "FIRE INFLUENCE ON DYNAMICS OF STEPPE PHYTOCENOSES BELOW-GROUND PHYTOMASS IN BURTINSKAYA STEPPE (ORENBURG RESERVE)." Ekosistemy, no. 24 (2020): 83–92. http://dx.doi.org/10.37279/2414-4738-2020-24-83-92.

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Steppe ecosystems are the most vulnerable to the influence of the pyrogenic factor. The study of the regularities of the vegetation cover restoration in the burnt steppe phytocenoses is urgent, as it is connected with the wide spread of fires in the steppe zone at present time. The increasing frequency and area of fires indicate a tendency of fires intensification, which ultimately can lead to significant environmental consequences. The authors studied the effect of pyrogenic factors on the dynamics of below-ground phytomass stocks of steppe phytocenoses on the territory of the sector “Burtins

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28

Ilinskiy, Andrey. "ESTIMATION OF BIOLOGICAL ABSORPTION COEFFICIENTS OF ELEMENTS AND HEAVY METALS FOR THE BIOMASS OF BUCKWHEAT." EurasianUnionScientists 6, no. 6(75) (2020): 7–10. http://dx.doi.org/10.31618/esu.2413-9335.2020.6.75.866.

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The paper presents the results of lysimetric experiment on podzolized Chernozem to study the coefficients of biological absorption of heavy metals and trace elements for buckwheat phytomass using various systems of mineral fertilizers. Analysis of empirical accumulation series showed that buckwheat phytomass accumulates zinc and cadmium more intensively than copper and lead. In the variant with optimal doses of mineral fertilizers, the content of zinc and lead in buckwheat phytomass decreased, which may be due to the effect of biological dilution when using mineral fertilizers.

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MAJOR, D. J., S. SMOLIAK, G. ASRAR, and E. T. KANEMASU. "ANALYSIS OF SPECTRAL DATA FOR COMPARING RANGELAND AND CULTURAL PRACTICES IN SOUTHERN ALBERTA." Canadian Journal of Plant Science 68, no. 4 (1988): 1017–23. http://dx.doi.org/10.4141/cjps88-123.

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Spectral reflectance characteristics of rangeland provide quantitative and qualitative information which can be useful for assessing range condition and phytomass. The data set in this study consisted of phytomass estimates and ground-based reflectance measurements in four wave bands between 0.5 and 1.1 μm taken from eight range improvement treatments near Lethbridge, Alberta from April through July in 1983 and 1984. The treatments consisted of subjecting native range to reseeding with grasses or legumes and fertilizer and herbicide additions. Spectral reflectance was highly correlated (R2 = 0

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Pastorek, M., J. Kára, and Z. Pastorek. "Experimental research on phytomass suitable for production of biogas." Research in Agricultural Engineering 61, No. 3 (2016): 129–33. http://dx.doi.org/10.17221/74/2013-rae.

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The structure of the dry material plant is made up of a cell tissues system. The walls of the cells are formed by cellulose and lignin, ingredients difficult to biodegrade. Therefore, the aim of the breeders performed a variety of energy plants, providing a high yield of dry matter in the green state. This applies particularly to herbs, grown on agricultural and arable land (for example cereals, maize, sorghum, hemp, amaranthus, mallow, sugar beet, potatoes, fodder crops on arable land, permanent grassland and other). The subject of the experiment was to evaluate selected varieties of maize an

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Barros, Lidiane Maria dos Santos Guimarães, Jose Lucínio de Oliveira Freire, and Andreza Agda Dantas Silva. "Comportamento vegetativo do tomateiro-cereja (Lycopersicon pimpinellifolium) irrigado com águas salinas." Revista Principia - Divulgação Científica e Tecnológica do IFPB 1, no. 44 (2019): 132. http://dx.doi.org/10.18265/1517-03062015v1n44p132-142.

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Saltwater in irrigation is an alternative to agriculture in the semi-arid region of the Northeast of Brazil. Due to the lack of research on this theme, this work aimed at the effects of water salinity on the vegetative behavior of cherry tomatoes. The experiment was carried out in a completely randomized design with 50% shade, using six water levels (0.5, 2.0, 3.5, 5.0, 6.5 and 8.0 dS m-1) and eight replicates. Absolute and relative growth rates in height, stem diameter, fresh epigene phytomass, dry leaf phytomass, days for initial, stem, root and total flowering, leaf biomass, root and root b

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Pasternak, Volodymyr, Tetiana Pyvovar, and Volodymyr Yarotsky. "Carbon Stock in Forest Stands of Ukrainian Eastern Forest-Steppe: Forest Monitoring Data." Environmental Sciences Proceedings 3, no. 1 (2020): 29. http://dx.doi.org/10.3390/iecf2020-07964.

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In Ukraine, carbon stocks in forests are assessed by the gain-loss method since the national forest inventory is under development now. For the evaluation of main pools of oak and pine forest stands, typical for the Forest-steppe of Ukraine, the stock-difference method was used for the data of repeated observations on 18 intensive forest monitoring plots. The average carbon stock in the phytomass was 94.1 ± 19.8 tC·ha−1 and 93.4 ± 12.8 tC·ha−1, while in the deadwood, it was 8.8 ± 7.3 tC·ha−1 and 5.3 ± 4.3 tC·ha−1 for oak and pine forest stands, respectively. In terms of age classes, pine stand

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Pristova, Tat'yana. "UNDERGROWTH PHYTOMASS IN THE SECONDARY DECIDUOUS STANDS OF THE MIDDLE TAIGA." Forestry Engineering Journal 10, no. 1 (2020): 60–68. http://dx.doi.org/10.34220/issn.2222-7962/2020.1/6.

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The determination of organic matter reserves by forest phytocenoses is important in assessing biological produc-tivity of deciduous plantations formed at felling. As a rule, phytomass of the stand and soil cover is given when assess-ing forest productivity. This indicator is rarely determined for the undergrowth. The deciduous phytocenoses of the middle taiga, formed at the cutting of spruce of myrtillus type, have been studied. The undergrowth of the studied phy-tocenoses is represented by six species of woody plants: Salix caprea L., Sorbus aucuparia L., Rosa acicularis Lindl. and Lonicera p

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Martinez-Yrizar, Angelina, Jose Sarukhan, Alfredo Perez-Jimenez, et al. "Above-ground phytomass of a tropical deciduous forest on the coast of Jalisco, México." Journal of Tropical Ecology 8, no. 01 (1992): 87–96. http://dx.doi.org/10.1017/s0266467400006131.

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ABSTRACTPhytomass was determined for a tropical deciduous forest in Chamela, Jalisco, México. The mean canopy height was 6.9 m, and the total basal area was 25.6 m2ha−1(dbh &gt; 3.0 cm). The estimated phytomass for this forest (85 Mg ha−1) is among the highest values for tropical dry forests with similar seasonal climates. A stepwise multiple regression analysis showed that phytomass can be predicted firstly by basal area (R2= 0.88), then by wood specific gravity (R2= 0.91), and finally by the inclusion of tree height in the regression (R2= 0.92). Each new independent variable explained si

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Johnson, Janel, S. Dennis Cash, Todd Yeager, Fred Roberts, and Bok Sowell. "Restoring Native Plant Species in Crested Wheatgrass Rangelands Using Glyphosate and No-Till Reseeding." Environmental Management and Sustainable Development 5, no. 2 (2016): 76. http://dx.doi.org/10.5296/emsd.v5i2.9844.

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<p class="emsd"><span lang="EN-GB">The objectives of this study were to evaluate the effects of spring application of glyphosate (1.1 kg/ha) on 1) crested wheatgrass (Agropyron cristatum (L.) Gaertn) phytomass, 2) seedling establishment of native grasses and forbs using no-till reseeding and 3) non-target plant species responses. Field trials were conducted at five sites in central and eastern Montana in 2002 and 2003. Each site contained sixteen 36x36 m plots to test four treatments. The treatments included control, glyphosate only, glyphosate plus cool season plants no-till seede

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Bratilova, Natalia, and Olga Gerasimova. "ABOVE-GROUND PHYTOMASS OF APPLE TREES GROWN IN PROSTRATE SHRUB FORM IN THE SUBURBAN AREA OF KRASNOYARSK." Forestry Engineering Journal 10, no. 4 (2021): 110–19. http://dx.doi.org/10.34220/issn.2222-7962/2020.4/9.

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The article presents the results of studies of the aboveground phytomass of domestic apple (Malus domestica Borkh) at 14-year and 113-year biological age, which were carried out on the basis of Krutovsky Botanical Garden in the suburban area of Krasnoyarsk. The features of phytomass distribution by fractional composition have been established for the first time for apple trees grown in Siberia in prostrate shrub form. From 10 to 13 leaves with an average area of 26 cm2 and an absolutely dry weight of 0.34 g are formed on the annual shoots of prostrate shrub apple trees. During the formation of

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FUNAOKA, Masamitsu. "III : Functional Polymers from Phytomass – Lignophenols." Journal of the Society of Materials Science, Japan 56, no. 12 (2007): 1189–93. http://dx.doi.org/10.2472/jsms.56.1189.

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Sharma, R. C. "Analysis of Phytomass Yield in Wheat." Agronomy Journal 84, no. 6 (1992): 926–29. http://dx.doi.org/10.2134/agronj1992.00021962008400060003x.

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Silva, Ramon Freire da, Ivandro de França da Silva, Bruno de Oliveira Dias, Rogério Freire da Silva, Kalline de Almeida Alves Carneiro, and Elizanilda Ramalho do Rego. "Nitrogen fertilization in Brachiaria decumbens Stapf grass under degraded soil condition." Research, Society and Development 9, no. 10 (2020): e3399108578. http://dx.doi.org/10.33448/rsd-v9i10.8578.

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Chemically degraded soils are found all over the world. Fertilization is an essential agronomic technique for recovering fertility and productivity in these areas. In this context, the objective was to recover the productive capacity of a degraded Red Yellow Argisol, grown with Brachiaria decumbens Stapf, in the presence of mineral fertilization with increasing amounts of nitrogen, evaluating the production of plant mass, plant height, tillering and water consumption. The experiment was conducted in a screened shelter and humidity control, according to a completely randomized experimental desi

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Kováčiková, Zuzana, Vladimíra Vargová, and Ľubica Jančová. "Effect of Digestate Application on Herbage Quality and Quantity of Permanent Grassland." Agriculture (Pol'nohospodárstvo) 59, no. 2 (2013): 88–98. http://dx.doi.org/10.2478/agri-2013-0008.

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Possibilities were studied for using digested substrate as fertiliser applied to grassland. Over 2008-2009, a research trial consisting of four treatments in four replicates (the non-fertilised control; sward fertilized with digested substrates from 100% slurry; 80% slurry and 20% phytomass; 60% slurry and 40% phytomass) was performed on seminatural grassland at Radvaň site. In the sward utilised by three cuts a year, these parameters were studied: botanical composition, dominant species, herbage production, organic matter and mineral substances. At the fertilized treatments, the proportion of

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Tavares, Lizandro Ciciliano, Daniel Ândrei Robe Fonseca, André Pich Brunes, Cassyo de Araujo Rufino, Géri Eduardo Meneguello, and Antonio Carlos Souza Albuquerque Barros. "Performance of rice seeds treated with zinc, boron, and molybdenum." Journal of Seed Science 35, no. 4 (2013): 532–39. http://dx.doi.org/10.1590/s2317-15372013000400016.

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The objective of this study was to assess physiological quality of seeds and the initial growth of lowland rice seedlings, cv. PUITA INTA-CL, treated with a product based on Zinc, Boron and Molybdenum. The following dosages of product were used: 0 (control), 50, 100, 150 and 200 mL.100 kg-1 seed. A completely randomized experimental design was used, with 10 treatments and four replications. Physiological quality of seeds was assessed by following tests: germination; first count of germination; and length and dry phytomass of seedlings. The initial growth was assessed at 7, 14, 21, 35, and 42 d

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Mrkvička, J., M. Veselá, and M. Skála. "Effect of fertilization on the distribution of root phytomass and the yield of meadow stands." Plant, Soil and Environment 50, No. 3 (2011): 116–21. http://dx.doi.org/10.17221/4016-pse.

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In 1998&ndash;2000 the effect of fertilization on the quantity, stratification of root phytomass and yields of dry mass on mesophyte meadow stands was studied. The root dry matter in the soil depth of 0.0&ndash;0.25 m was oscillated and the extreme values in individual samplings were found in 1998 (402&ndash;702 g/m<sup>2</sup>). In 1999 and 2000 the oscillating minimum and maximum values of dry root phytomass in all were 418&ndash;622 g/m<sup>2</sup>, 423&ndash;678 g/m<sup>2</sup>,respectively. The mean values of dry root mass in unferti

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Porvaz, Pavol, Ján Gaduš, Štefan Tóth, and János Jóvér. "Biogas Production Based On Miscanthus × Giganteus (Miscanthus Sinensis Anderss.) Within Dry Fermentation Process." Acta Regionalia et Environmentalica 12, no. 2 (2015): 47–50. http://dx.doi.org/10.1515/aree-2015-0010.

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Abstract “Dry fermentation“ technology may be used for energy recovery of phytomass substrate which has dry matter content from 20 to 60%. In agriculture sector, while only rarely used, it is a very perspective technology at such types of biomass – phytomass which is not recommended to be processed within “wet fermentation” (process is energetically and operationally very costly). For detecting the suitability of Miscanthus × giganteus phytomass to biogas for production through dry fermentation process, as well as determining the biogas yield, at the Slovak university of Agriculture (SUA) ther

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Ловинська, В. М. "Нормативи оцінки фітомаси компонентів стовбура соснових деревостанів Північного Степу України". Вісник Полтавської державної аграрної академії, № 1 (29 березня 2019): 11–17. http://dx.doi.org/10.31210/visnyk2019.01.01.

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Мета статті – розробити нормативи оцінки компонентів стовбура надземної фітомаси соснових деревостанів в умовах Північного Степу України. Методика дослідження. У представленій роботі використана методика збору та обробки дослідного матеріалу проф. П.І. Лакиди. Зроблено статистичну обробку, кореляційний аналіз та пошук регресійних залежностей компонентів фітомаси стовбура сосни звичайної від таксаційних показників деревостану. Результати дослідження. Сформовано робочий масив даних, який характеризує компоненти фітомаси стовбура для оцінювання біотичної продуктивності штучних соснови

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Donkor, Noble T., Moses M. Okello, Robert J. Hudson, and Edward W. Bork. "Seasonal Dynamics and Defoliation Impact on Herbage Yield in Aspen Boreal Habitats of Alberta." Canadian Field-Naturalist 117, no. 2 (2003): 196. http://dx.doi.org/10.22621/cfn.v117i2.682.

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Within the aspen boreal ecosystems, little information exists on the seasonal dynamics of available herbage and the effects of varying defoliation regimes on accumulated herbage growth and associated opportunities for animal production. We examined seasonal changes in herbage phytomass in conjunction with defoliation treatments in Bromus inermis-Poa pratensis grasslands in central Alberta. Changes in herbage pools were examined by sampling at five monthly intervals from April to September 1997 and 1998, inclusive. Vegetation was also subjected to a factorial experiment with an initial defoliat

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Chidumayo, Emmanuel N. "Effect of tillage, clipping and climate on grass phytomass in a Zambian savanna." Journal of Tropical Ecology 19, no. 4 (2003): 407–15. http://dx.doi.org/10.1017/s0266467403003456.

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The effect of tillage, clipping, precipitation and temperature on above-ground grass production was investigated in permanent plots at a Zambian savanna site for 5 y (1996^2001) by the harvest method. Mean species richness was 4.6 species m-2 with a total of 15 species at the study site. Mean end-of-season grass phytomass was 464 g m-2 with no statistically significant differences among years in control quadrats. Grass phytomass recovered within two wet seasons after tillage and a similar trend was observed after cessation of a 2-y monthly harvesting regime. However, in experimental quadrats,

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Diniz, Genilson Lima, Reginaldo Gomes Nobre, Geovani Soares de Lima, Leandro de Pádua Souza, Lauriane Almeida dos Anjos Soares, and Hans Raj Gheyi. "Phytomass and quality of yellow passion fruit seedlings under salt stress and silicon fertilization." Comunicata Scientiae 11 (July 13, 2020): e3400. http://dx.doi.org/10.14295/cs.v11i0.3400.

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The semiarid region of Northeastern Brazil is characterized by long drought periods, and the use of saline waters appears as an alternative for the expansion of irrigated areas. Associated with the use of these waters, silicon fertilization constitutes an important attenuator of salt stress. In this perspective, this study aimed to evaluate the phytomass production and quality of the passion fruit cultivar ‘Gigante Amarelo’ grown with saline water and silicon fertilization. The experiment was conducted in a plant nursery belonging to the Center of Agrifood Science and Technology, in the munici

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Zavalishin, Nikolay N. "OPTIMAL CALIBRATION OF PHYTOMASS-PRODUCTION RELATIONSHIP IN TERRESTRIAL ECOSYSTEMS AND ITS APPLICATION IN THEIR BIOTIC TURNOVER MODELLING." Ecology. Economy. Informatics.System analysis and mathematical modeling of ecological and economic systems 1, no. 5 (2020): 62–64. http://dx.doi.org/10.23885/2500-395x-2020-1-5-62-64.

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Analysis of simultaneously observed data on phytomass and net primary productivity for terrestrial ecosystems in Northern EuroAsia from three available databases allows one to study their relationships in annual time scale. For each climatic zone its own dependence of NPP on phytomass is established describing transition from grass to forest plant communities. Rational approximation of functional forms for these dependencies is carried out through the best parameterization technique. This approach is based on parameterization of approximating curve by means of the minimal least-squares method.

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Kovár, Peter, Luboš Vozár, and Peter Hric. "Changes in growth-production parameters of Lolium perenne L. turf after application of concentrated polysulfide fertilizer." Acta fytotechnica et zootechnica 23, no. 3 (2020): 155–60. http://dx.doi.org/10.15414/afz.2020.23.03.155-160.

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The changes in growth rate, daily production of above-ground phytomass and lawn density of turfgrass after application of fertilizer based on polysulfide (Sulka NKS+) were evaluated in Nitra (the Slovak Republic) climatic conditions. The polysulfide preparation was applied 2-times, 4-times and 6-times during the vegetation period in 2015–2017 and the effect was compared with a zero control. Stimulatory effect of Sulka NKS+ was shown in the average daily gain of grass height and average daily gain of aboveground phytomass weight with the most visible expression in the 2nd and 3rd year of cultiv

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Matuszkiewicz, Jan M., Ewa M. Roo-Zielińska, and Jerzy Solon. "Relation between the size of the above-ground and the underground phytomass of plant communities in the region of Gurwan-Turuu in Central Mongolia." Acta Societatis Botanicorum Poloniae 51, no. 2 (2014): 323–30. http://dx.doi.org/10.5586/asbp.1982.029.

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Results are presented of measurement of the above-ground and underground phytomass in six different plant communities on the area of the dry steppes of Central Mongolia. The relation was calculated between the above-ground and underground phytomass. This relation was found to be mostly constant under the local conditions (1 :34). This allows to adopt the "top/roots ratio" as a synthetic index of the vegetation structure in the aspect of zonal differentiation.

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