Relevant bibliographies by topics / Effect of chemicals on weeds

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Effect of chemicals on weeds'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Effect of chemicals on weeds"

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Roberts, Warren, Jim Shrefler, Jim Duthie, Jonathan Edelson, and Wes Watkins. "Watermelon Weed Control: Current and Future Possibilities." HortScience 32, no. 3 (June 1997): 428E—428. http://dx.doi.org/10.21273/hortsci.32.3.428e.

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Watermelon is the major fresh-market vegetable grown in Oklahoma, but growers have few labeled herbicides from which to choose. Grower surveys in Oklahoma have identified weed control as the major production problem facing watermelon producers. In 1995 and 1996, various mechanical and chemical weed control strategies have been explored. `Allsweet' watermelons were grown with various combinations of labeled and unlabeled herbicides, as well as mechanical control treatments. Treatments included bensulide, clomazone, DCPA, ethalfluralin, glyphosate, halosulfuron, napropamide, naptalam, paraquat,
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Vaczkó, Gábor, László Hódi, Melinda Tar, Péter Jakab, and István Kristó. "The effect of different weed control technologies on weed species composition of maize." Review on Agriculture and Rural Development 7, no. 1-2 (November 1, 2019): 67–71. http://dx.doi.org/10.14232/rard.2018.1-2.67-71.

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In our investigation we used different weed control technologies in the different phenology states of the maize. The farm experiment has been carried out in Hungary, Kunágota, on flat surface, homogeneous quality chernozem soil, on 1000 m2 plots, in 4 replications.
 The experiment can be regarded as 9 weed-control strategies where, in addition to the untreated control, two chemicals are applied (Laudis, Capreno) in different doses, two mechanical weed-control technologies, and two combination of chemicals and mechanicals weed-control technologies were used. Mechanical weed-control place c
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Nwosisi, Nandwani, and Hui. "Mulch Treatment Effect on Weed Biomass and Yields of Organic Sweetpotato Cultivars." Agronomy 9, no. 4 (April 13, 2019): 190. http://dx.doi.org/10.3390/agronomy9040190.

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Weeds are a challenge, particularly in organic agriculture, due to restrictions on the application of synthetic herbicides and chemicals. A preliminary cultivar evaluation trial of organic sweetpotato was conducted in 2015 at Tennessee State University certified organic farm. Three mulches: wheat straw, pine needle, and black plastic mulch, along with a control (no mulch), were evaluated for their weed management abilities in a sweetpotato field. Four cultivars of sweetpotato were planted in 0.91 m wide mulch beds with 0.3 m row spacing anddrip irrigated with four replications. Data was collec
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Batish, D. R., H. P. Singh, D. B. Saxena, and R. K. Kohli. "Weed suppressing ability of parthenin a sesquiterpene lactone from Parthenium hysterophorus." New Zealand Plant Protection 55 (August 1, 2002): 218–21. http://dx.doi.org/10.30843/nzpp.2002.55.3893.

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To find alternate chemicals with novel mode of action allelochemicals which are natural plant products are being investigated This study was undertaken to explore the effect of parthenin (chemically a sesquiterpene lactone from Parthenium hysterophorus L) on two weed species viz Amaranthus viridis and Chenopodium murale In a laboratory bioassay germination seedling growth and dry weight accumulation of the weeds were significantly reduced by treating with parthenin The chlorophyll content and the respiratory activity were also significantly affected in the treated plants The study concluded th
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ADETUNJI, Charles Oluwaseun, Julius Kola OLOKE, Gandham S. PRASAD, and Isaac Oluseun ADEJUMO. "Effect of Lasiodiplodia pseudotheobromae Isolates, a Potential Bioherbicide for Amaranthus hybridus L. in Maize Culture." Notulae Scientia Biologicae 9, no. 1 (March 30, 2017): 131–37. http://dx.doi.org/10.15835/nsb9110018.

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The use of phytopathogenic fungi in biological control of weeds may represent a promising alternative to the use of chemicals and may lead to the sustainability of agro-ecosystems. In the current study, strain C1136 was developed into various formulations and their activities were compared with a chemical herbicides using glyphosate in a screen house, applying standard procedure. All the bioherbicide treatments gave significantly higher yield component on the following parameters: tasselling, number of cobs, day of silking, number of ears, number of grain/cob, weight of 100 grains, number of c
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Gavryushina, I. V., S. A. Semina, and S. M. Nadezhkin. "GROWING CONDITIONS INFLUENCE ON MAIZE CROPS PHYTOSANITARY STATE." Scientific Life 15, no. 9 (September 30, 2020): 1215–23. http://dx.doi.org/10.35679/1991-9476-2020-15-9-1215-1223.

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An important place in the set of measures aimed at increasing the yield of maize is occupied by the methods of using fertilizers, herbicides and growth regulators. The yield of maize is largely determined by the phytosanitary state of crops. Maize has an average competitiveness and is sensitive to the presence of an excessive amount of weed-field component in agrocenoses. The article presents the results of three-year studies on the use of the pre-emergence herbicide DualGold and the postemergence herbicide Elumisna in various agrophonics, and shows their role in reducing the weediness of crop
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Mennan, Husrev, and Mathieu Ngouajio. "Effect of Brassica Cover Crops and Hazelnut Husk Mulch on Weed Control in Hazelnut Orchards." HortTechnology 22, no. 1 (February 2012): 99–105. http://dx.doi.org/10.21273/horttech.22.1.99.

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Weed management is critical in hazelnut (Corylus avellana) production. Weeds reduce nutrient availability, interfere with tree growth, and reduce hand-harvesting efficiency. Field experiments were conducted from Fall 2006 to 2010 to test effects of brassica (Brassica sp.) cover crops and hazelnut husk mulch as alternative weed management strategies in hazelnut. The cover crop treatments consisted of rape (Brassica napus), field mustard (Brassica rapa), oriental mustard (Brassica juncea), and fallow with no cover crop. Hazelnut husk was surface-applied at two thicknesses, 5- and 10-cm-thick lay
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Garcia De Arevalo, Rafael C., Carmen A. Lusarreta, Carmen B. Neyra, Mercedes A. Sanchez, and Pedro J. H. Algarra. "Chemical Control of Annual Weeds in Field Beans (Vicia faba) in Central Spain." Weed Science 40, no. 1 (March 1992): 96–100. http://dx.doi.org/10.1017/s0043174500057027.

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Field studies were conducted over 3 yr to investigate the effect of chemicals on field beans density and weed control. Predominant weed species were common lambsquarters, fumitory, henbit, corn poppy, prostrate knotweed, and wild mustard. All herbicide treatments except linuron injured field beans. Mean field beans survival at harvest was 78% in alachlor and 84% in alachlor containing treatments. Only 5% survived atrazine at 1.9 kg ai ha−1. Ethalfluralin, pendimethalin, simazine, terbutylazine plus terbutryn, and trifluralin treatments produced plant survival values of 56, 82, 86, 74, and 71%,
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Zdražílková, Magda. "Comparison of the seed bank with the aboveground vegetation of field weeds in the neighbourhood of Mikulov in South Moravia." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 59, no. 1 (2011): 277–90. http://dx.doi.org/10.11118/actaun201159010277.

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The processed set of phytosociological relevés indicated that at the present time the field weed associations are composed particularly of species of wide ecological amplitude. The rare and endangered species appeared only on localities usually not much affected by chemicals. Most of the endangered species of field weeds were found to survive primarily on small private farms, in the headland of fields or on field edges near the natural reserves.The results indicated that the type of crop had a significant effect on the composition of the current aboveground vegetation. There is a close relatio
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Carrubba, Alessandra, Andrea Labruzzo, Andrea Comparato, Serena Muccilli, and Alfio Spina. "Use of Plant Water Extracts for Weed Control in Durum Wheat (Triticum turgidum L. Subsp. durum Desf.)." Agronomy 10, no. 3 (March 6, 2020): 364. http://dx.doi.org/10.3390/agronomy10030364.

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The use of plant water extracts to control weeds is gaining attention in environmentally-friendly agriculture, but the study of the effect that such extracts may exert on the yield of durum wheat is still unexplored. In 2014 and 2016, the herbicidal potential of several plant water extracts was field tested on durum wheat (cv Valbelice). In 2014, extracts obtained from Artemisia arborescens, Rhus coriaria, Lantana camara, Thymus vulgaris, and Euphorbia characias were used, whereas in 2016 only A. arborescens and R. coriaria were tested as “donor” plants. In both years, weed incidence was evalu
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Dissertations / Theses on the topic "Effect of chemicals on weeds"

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Omami, Elizabeth Nabwile, of Western Sydney Hawkesbury University, of Agriculture Horticulture and Social Ecology Faculty, and School of Horticulture. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants." THESIS_FAHSE_HOR_Omami_E.xml, 1993. http://handle.uws.edu.au:8081/1959.7/66.

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A large number of weed seeds in the soil persist because of seed dormancy, and depletion of the seed bank through manipulation of seed dormancy has been suggested as one of the goals in weed control. This study was designed to investigate some of the factors which control dormancy and germination in Amaranthus retroflexus seeds. Germination studies were conducted at different temperatures, and either in continuous white light or in the dark. Higher temperatures increased germination and, although light interacted with temperature, its effect on germination varied with the temperature. In an at
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Omami, Elizabeth Nabwile. "Amaranthus retroflexus seed dormancy and germination responses to environmental factors and chemical stimulants." Thesis, [S.l. : s.n.], 1993. http://handle.uws.edu.au:8081/1959.7/66.

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A large number of weed seeds in the soil persist because of seed dormancy, and depletion of the seed bank through manipulation of seed dormancy has been suggested as one of the goals in weed control. This study was designed to investigate some of the factors which control dormancy and germination in Amaranthus retroflexus seeds. Germination studies were conducted at different temperatures, and either in continuous white light or in the dark. Higher temperatures increased germination and, although light interacted with temperature, its effect on germination varied with the temperature. In an at
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Dodds, Darrin Matthew. "Adjuvant effects on herbicide absorption and translocation." Diss., Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-11022007-143506.

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Somireddy, Upender Reddy. "Effect of Herbicide-Organic Mulch Combinations on Weed Control and Herbicide Persistence." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1325255792.

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Filby, Amy Louisa. "Molecular effect pathways of endocrine disrupting chemicals in fish." Thesis, University of Exeter, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439828.

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Umeda, Kai. "Effect of Halosulfuron on Rotational Crops." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/214957.

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A field test was conducted to evaluate and determine the safety of halosulfuron on typical rotational crops such as lettuce, broccoli, spinach, onion, alfalfa, barley, field corn, and melons after an initial application on cantaloupes. Halosulfuron at 0.05 or 0.1 lb AI/A applied on cantaloupes did not detrimentally affect crop stand establishment, height, or whole plant fresh weights when alfalfa, barley, spinach, lettuce, onion, and broccoli were planted at approximately 4 to 5 MAT. Cantaloupes and field corn planted at 1 YAT were not affected in establishing a stand and in growing during the
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Umeda, K., and N. Lund. "Effect of Prowl and Prefar Herbicides on Onions." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/214935.

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Significant onion height reduction was observed when Prowl (pendimethalin) and Prefar (bensulide) herbicide combinations were applied preemergence (PREE). The onions resumed growth but the height was still slightly reduced later in the growing season compared to the handweeded check and the standard herbicide treatment, Dacthal (DCPA). The onion crop stand emerged initially but later in the season, a significant crop stand reduction was observed for the higher rate of Prowl at 0.5 lb AI/A plus Prefar. A lower rate of Prowl at 0.25 lb AI/A plus Prefar also caused a reduction of the onion stand
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Coberly, Samantha W. "The effect of household chemicals on deciduous and permanent tooth class." Thesis, Wichita State University, 2013. http://hdl.handle.net/10057/6807.

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Dental anthropology was wide ranging implications for the field of anthropology. Teeth have become important sources of data about the individual as well as possibly being able to identify them. One problem that can arise is the chemical destruction of teeth whether it be diagenesis in an archaeological context or deliberately in a forensic context. In terms of deliberate destruction of the body several household chemicals are cheap and easily assessable. The purpose of this research is to look at how six household chemicals affect both deciduous and permanent tooth classes. The six chemicals
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Turan, Nahid. "The effect of plasticisers and related chemicals on sulphate supply enzymes." Thesis, University of Birmingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433746.

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Delacruz, C. Ligia. "The effect of natural toxicants and other chemicals on the kidney." Thesis, University of Surrey, 1988. http://epubs.surrey.ac.uk/847359/.

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Repeated administration of ochratoxin A (OTA) caused renal morphological dose-related changes, that were associated with proximal tubular and glomerular damage the latter showing oedema and prominent PAS staining suggestive of glomerular basement membrane thickening. On the other hand, the combined administration of repeated doses of OTA and aflatoxin B[1] (2. 5 mg and 100 ug per kg, respectively), appeared to have a synergistic effect, characterized by severe disruption of proximal tubules and general morphological derrangement of the glomerulus, involving intense and faint staining nuclei (s
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Books on the topic "Effect of chemicals on weeds"

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Cantrell, Rick L. A guide to silvicultural herbicide use in the southern United States. Auburn, Ala: Auburn University, School of Forestry, Alabama Agricultural Experiment Station, 1985.

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Cantrell, Rick L. A guide to silvicultural herbicide use in the Southern United States: Special forms. Auburn University, Ala: Alabama Agricultural Experiment Station, 1985.

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Simard, S. Nine-year response of Engelmann spruce and the Willow Complex to chemical and manual release treatments on a ICHmw2 site near Vernon. Victoria, B.C: Canadian Forest Service, 1996.

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Simard, S. Nine-year response of Douglas-fir and the Mixed Hardwood-Shrub Complex to chemical and manual release treatments on an ICHmw2 site near Salmon Arm. Victoria, B.C: Canadian Forest Service, 1996.

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Weeding without chemicals. New York: Skyhorse Pub., 2012.

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Scott, R. C. Recommended chemicals for weed and brush control. Little Rock]: University of Arkansas Division of Agriculture, Cooperative Extension Services, 2006.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1993.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1993.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1993.

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Mallory-Smith, Carol. Herbicide-resistant weeds and their management. [Moscow, Idaho]: University of Idaho Cooperativae Extension System, 1999.

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Book chapters on the topic "Effect of chemicals on weeds"

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Moore, Kenneth E., A. S. Heller, and Arthur L. Lowe. "Chemical Composition of Nuclear Reactor Vessel Welds." In Effects of Radiation on Materials: 12th International Symposium Volume II, 1046–58. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 1985. http://dx.doi.org/10.1520/stp87019850030.

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Saha, Biswanath, Heena Kauser, Meena Khwairakpam, and Ajay S. Kalamdhad. "Effect and Management of Various Terrestrial Weeds—Review." In Lecture Notes in Civil Engineering, 231–38. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0990-2_17.

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Andrews, D. F., and A. M. Herzberg. "Effect of Chemicals on Earthworm Populations." In Springer Series in Statistics, 301–6. New York, NY: Springer New York, 1985. http://dx.doi.org/10.1007/978-1-4612-5098-2_53.

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Rana, Neha, Aruna V. Varanasi, and Brent A. Sellers. "Effect of Environmental Factors on Weed Germination and Management." In Biology, Physiology and Molecular Biology of Weeds, 27–44. Boca Raton, FL: CRC Press, 2017. | “A science publishers book.”: CRC Press, 2017. http://dx.doi.org/10.1201/9781315121031-3.

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Weekers, F., Ph Thonart, Ph Jacques, D. Springael, M. Mergeay, and L. Diels. "Effect of Drying on Bioremediation Bacteria Properties." In Biotechnology for Fuels and Chemicals, 311–22. Totowa, NJ: Humana Press, 1998. http://dx.doi.org/10.1007/978-1-4612-1814-2_30.

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Phalen, R. N. "Testing of Protective Effect against Liquid Chemicals." In Protective Gloves for Occupational Use, 121–40. 3rd ed. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003126874-12.

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Du, Liping, Aleš Prokop, and Robert D. Tanner. "Effect of Bubble Size on Foam Fractionation of Ovalbumin." In Biotechnology for Fuels and Chemicals, 1075–91. Totowa, NJ: Humana Press, 2002. http://dx.doi.org/10.1007/978-1-4612-0119-9_87.

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Burapatana, Vorakan, Ernest E. Butler, Gaurav Chauhan, Sean Hartig, Helen Kincaid, Tong Wang, Shayrizal Samsudin, and Robert D. Tanner. "Effect of Lidocaine on Ovalbumin and Egg Albumin Foam Stability." In Biotechnology for Fuels and Chemicals, 905–11. Totowa, NJ: Humana Press, 2003. http://dx.doi.org/10.1007/978-1-4612-0057-4_76.

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Bredwell, M. D., M. D. Telgenhoff, S. Barnard, and R. M. Worden. "Effect of Surfactants on Carbon Monoxide Fermentations by Butyribacterium methylotrophicum." In Biotechnology for Fuels and Chemicals, 637–47. Totowa, NJ: Humana Press, 1997. http://dx.doi.org/10.1007/978-1-4612-2312-2_56.

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Gottschalk, Leda M. F., Ronaldo Nobrega, and Elba P. S. Bon. "Effect of Aeration on Lignin Peroxidase Production by Streptomyces viridosporus T7A." In Biotechnology for Fuels and Chemicals, 799–807. Totowa, NJ: Humana Press, 2003. http://dx.doi.org/10.1007/978-1-4612-0057-4_67.

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Conference papers on the topic "Effect of chemicals on weeds"

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Reátegui, Eduardo, Erik Reynolds, Lisa Kasinkas, Amit Aggarwal, Michael J. Sadowsky, Alptekin Aksan, and Lawrence P. Wackett. "Reactive Biomaterial for the Treatment of Herbicide Contaminated Drinking Water: Atrazine Dechlorination." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80205.

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The herbicide atrazine is used for control of broadleaf weeds, principally in corn, sorghum, and sugarcane [1]. Atrazine is currently used in 70 countries at an estimated annual rate of 111,000 tons [2, 3]. Atrazine is typically applied early in the planting season. However, Heavy rainfall events, shortly after application may lead to detectable atrazine concentrations in waterways and in drinking-water supplies. The United States Environmental Protection Agency established a 3 ppb limit of atrazine in drinking water. In some instances, municipal water treatment plants use chemicals and other
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SPRUOGIS, Vidmantas, Anželika DAUTARTĖ, Romualdas ZEMECKIS, Edmundas BARTKEVIČIUS, and Aida STIKLIENĖ. "THE INFLUENCE OF BIOORGANIC PREPARATIONS ON THE PRODUCTIVITY OF CONVENTIONALY GROWN WINTER WHEAT ACTIVATING AND SAVING THE USE OF SYNTHETIC CHEMICALS." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.080.

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The influence of Raskila bioorganic fertilisers on the productivity of conventional winter wheat ‘Olivin’, was investigated in order to stimulate and save synthetic herbicide Arrat and fungicide Tango Super for spring spraying. Scheme of treatment: 1. Control; 2. Winter wheat sprayed (BBCH 20-29) with fertilizer Raskila 3 l ha-1; 3. Winter wheat sprayed (BBCH 20-29) with Arrat 0.2 kg ha-1+Tango super 1.5 l ha-1; 4. Winter wheat sprayed (BBCH 20-29) with Arrat 0.2 kg ha-1+Tango super 1.5 l ha-1+Raskila 3.0 l ha-1; 5. Winter wheat sprayed (BBCH 20-29) with Arrat 0.1 kg ha-1+Tango super 0.75 l ha
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ČESONIENĖ, Laima, Kristina LINGYTĖ, Daiva ŠILEIKIENĖ, and Midona DAPKIENĖ. "GROUNDWATER QUALITY DYNAMICS IN THE TERRITORY OF FORMER PESTICIDE WAREHOUSE." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.097.

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Pesticides are used in intensive farming to help fight plant pests and diseases (insecticides, fungicides), kill weeds (herbicides), as well as accelerate the growth of seeds (defoliants), but until 1992 pesticides were kept in improperly equipped warehouses, there was no maintenance or accounting of the pesticides. Consequently, the environment of the warehouse was often polluted. Such sources of pollution are hazardous to the environment. Economic activities in the area have been carried out from 1980 to 1994. Various agricultural chemicals have been stored and used there. Later, in 1997, ch
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Shi, Lei, Hua Liu, Yumei Wei, Ming Ma, and Rui Jiang. "The Persistence of Invasion and Diffusion Model of Poisonous Weeds with Allee Effect." In 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/amms-17.2017.36.

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Choi, Kyoung Joon, Seung Chang Yoo, Chi Bum Bahn, and Ji Hyun Kim. "Investigation of Microstructural Changes due to Thermal Aging in Dissimilar Metal Welds." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28699.

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To investigate the effect of long-term thermal aging on the fusion boundary region between low-alloy steel A533 Gr. B and weld metal Alloy 152, a representative dissimilar weld mockup composed of Alloy 690/Alloy 152/A533 Gr. B was aged in laboratory furnaces under accelerated temperature conditions. The aging time was determined using the diffusion equation. The heat treatment was performed at 450°C for 60-y equivalent time (5,500 h) to simulate thermal aging effects. An additional aging heat treatment was also performed at 400°C for 15- and 30-y equivalent times (6,450 and 12,911 h, respectiv
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Yuce, H. H., A. D. Hasse, and P. L. Key. "Effect Of Common Chemicals On The Mechanical Properties Of Optical Fibers." In O-E/Fiber LASE '88, edited by Roger A. Greenwell, Dilip K. Paul, and Shekhar G. Wadekar. SPIE, 1989. http://dx.doi.org/10.1117/12.960047.

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Arbab, M. Hassan, Antao Chen, Eric I. Thorsos, Dale P. Winebrenner, and Lisa M. Zurk. "Effect of surface scattering on terahertz time domain spectroscopy of chemicals." In Integrated Optoelectronic Devices 2008, edited by Kurt J. Linden and Laurence P. Sadwick. SPIE, 2008. http://dx.doi.org/10.1117/12.769015.

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Krustev, Angel, Boian Alexandrov, and Jerry Kovacich. "Modified GTAW Orbital Tube-to-Tubesheet Welding Technique, and the Effect of a Copper Weld Retainer During Welding of Alloy 825." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65971.

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Tube-to-tubesheet welds are an essential part of the design of heat exchangers used in power generation, petro-chemical, chemical processing, pharmaceutical, and food processing industries. The tube-to-tubesheet welds are typically produced using gas tungsten arc welding (GTAW) with or without the addition of filler wire, and involve carbon steels and various creep and corrosion resistant alloys. The weld heat input in tube-to-tubesheet welds is an essential parameter that controls the productivity and weld quality, in terms of weld bead geometry and heat affected zone microstructure and prope
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Nalasavagan, Kausalyah, Harun bin Abdul Rahman, Mohd Fairuz bin Azman, and Rizal bin Bakar. "Managing Accelerated Water Breakthrough in High Permeability Contrast Waterflood Reservoirs, and Achieving Production Conformance Through Injection Redistribution Strategy." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211195-ms.

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Abstract Waterflooding for pressure maintenance often seems straightforward with key objective being voidage replacement as demonstrated through material balance. Even though pressure maintenance can be achieved, it may not directly translate into higher production if efficient sweep is not attained, and oil has been bypassed. This paper demonstrates a real case study at Field S on how swift and integrated mitigation plan successfully addressed the production impairment during the initial water injection period. Field S started injection through newly drilled peripheral water injectors to fill
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Manu, J., and Vasudeva Madav. "Hydrodynamic effect of elastic and inelastic collisions in fluidized bubbling bed reactor." In NATIONAL CONFERENCE ON ENERGY AND CHEMICALS FROM BIOMASS (NCECB). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0005565.

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Reports on the topic "Effect of chemicals on weeds"

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Miles, Gaines E., Yael Edan, F. Tom Turpin, Avshalom Grinstein, Thomas N. Jordan, Amots Hetzroni, Stephen C. Weller, Marvin M. Schreiber, and Okan K. Ersoy. Expert Sensor for Site Specification Application of Agricultural Chemicals. United States Department of Agriculture, August 1995. http://dx.doi.org/10.32747/1995.7570567.bard.

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In this work multispectral reflectance images are used in conjunction with a neural network classifier for the purpose of detecting and classifying weeds under real field conditions. Multispectral reflectance images which contained different combinations of weeds and crops were taken under actual field conditions. This multispectral reflectance information was used to develop algorithms that could segment the plants from the background as well as classify them into weeds or crops. In order to segment the plants from the background the multispectrial reflectance of plants and background were st
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Lorenz, P. B. The effect of alkaline agents on retention of EOR chemicals. Office of Scientific and Technical Information (OSTI), July 1991. http://dx.doi.org/10.2172/5629326.

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Petit, Sylvain, Joannie Chin, Amanda Forster, Michael Riley, and Kirk Rice. Effect of artificial perspiration and cleaning chemicals on mechanical and chemical properties of ballistic fibers. Gaithersburg, MD: National Institute of Standards and Technology, 2008. http://dx.doi.org/10.6028/nist.ir.7494.

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VanderGheynst, Jean, Michael Raviv, Jim Stapleton, and Dror Minz. Effect of Combined Solarization and in Solum Compost Decomposition on Soil Health. United States Department of Agriculture, October 2013. http://dx.doi.org/10.32747/2013.7594388.bard.

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In soil solarization, moist soil is covered with a transparent plastic film, resulting in passive solar heating which inactivates soil-borne pathogen/weed propagules. Although solarization is an effective alternative to soil fumigation and chemical pesticide application, it is not widely used due to its long duration, which coincides with the growing season of some crops, thereby causing a loss of income. The basis of this project was that solarization of amended soil would be utilized more widely if growers could adopt the practice without losing production. In this research we examined three
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Sessa, Guido, and Gregory Martin. A functional genomics approach to dissect resistance of tomato to bacterial spot disease. United States Department of Agriculture, January 2004. http://dx.doi.org/10.32747/2004.7695876.bard.

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The research problem. Bacterial spot disease in tomato is of great economic importance worldwide and it is particularly severe in warm and moist areas affecting yield and quality of tomato fruits. Causal agent of spot disease is the Gram-negative bacterium Xanthomonas campestris pv. vesicatoria (Xcv), which can be a contaminant on tomato seeds, or survive in plant debris and in association with certain weeds. Despite the economic significance of spot disease, plant protection against Xcvby cultural practices and chemical control have so far proven unsuccessful. In addition, breeding for resist
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Belkin, Shimshon, Sylvia Daunert, and Mona Wells. Whole-Cell Biosensor Panel for Agricultural Endocrine Disruptors. United States Department of Agriculture, December 2010. http://dx.doi.org/10.32747/2010.7696542.bard.

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Objectives: The overall objective as defined in the approved proposal was the development of a whole-cell sensor panel for the detection of endocrine disruption activities of agriculturally relevant chemicals. To achieve this goal several specific objectives were outlined: (a) The development of new genetically engineered wholecell sensor strains; (b) the combination of multiple strains into a single sensor panel to effect multiple response modes; (c) development of a computerized algorithm to analyze the panel responses; (d) laboratory testing and calibration; (e) field testing. In the course
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Chejanovsky, Nor, and Bruce D. Hammock. Enhancement of Baculoviruses' Insecticidal Potency by Expression of Synergistic Anti-Insect Scorpion Toxins. United States Department of Agriculture, January 1996. http://dx.doi.org/10.32747/1996.7573070.bard.

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The extensive use or non-specific, hazardous, chemical insecticides demands the development of "healthier" alternative means for pest control. Insect-specific, baculoviruses expressing anti-insect toxin genes (from mites or scorpions) demonstrated in laboratory assays and field trials enhanced insecticidal activity and provided some protection from lepidopterous larvae to agricultural plantations. To utilize recombinant baculoviruses as commercial biopesticides in row crop agriculture, further increase in their speed of kill should be achieved and the reduction in crop damage should be compara
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Friedlander, Michael, Clinton Dawes, and Y. (Joel) Kashman. The Interaction between Epiphytes and Seaweeds. United States Department of Agriculture, June 1995. http://dx.doi.org/10.32747/1995.7571355.bard.

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Two Israeli laboratories (IOLR and TAU) cooperated with one American laboratory (USF) in the research of the interaction between epiphytes (Ulva sp.) and the cultivated seaweed (Gracilaria sp.) The main objectives included the following aspects: Structural aspects, effects of different irradiances on growth, sensitivity studies, allelopathic excretions, selective chemicals and integration of studies of epiphytization. The studies were operated in outdoor tanks, indoor growth chambers and in the lab. The main conclusions and their relevance for mariculture are as following: 1. The green algal e
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Chamovitz, A. Daniel, and Georg Jander. Genetic and biochemical analysis of glucosinolate breakdown: The effects of indole-3-carbinol on plant physiology and development. United States Department of Agriculture, January 2012. http://dx.doi.org/10.32747/2012.7597917.bard.

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Genetic and biochemical analysis of glucosinolate breakdown: The effects of indole-3-carbinol on plant physiology and development Glucosinolates are a class of defense-related secondary metabolites found in all crucifers, including important oilseed and vegetable crops in the Brassica genus and the well-studied model plant Arabidopsis thaliana. Upon tissue damage, such as that provided by insect feeding, glucosinolates are subjected to catalysis and spontaneous degradation to form a variety of breakdown products. These breakdown products typically have a deterrent effect on generalist herbivor
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Lahav, Ori, Albert Heber, and David Broday. Elimination of emissions of ammonia and hydrogen sulfide from confined animal and feeding operations (CAFO) using an adsorption/liquid-redox process with biological regeneration. United States Department of Agriculture, March 2008. http://dx.doi.org/10.32747/2008.7695589.bard.

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The project was originally aimed at investigating and developing new efficient methods for cost effective removal of ammonia (NH₃) and hydrogen sulfide (H₂S) from Concentrated Animal Feeding Operations (CAFO), in particular broiler and laying houses (NH₃) and hog houses (H₂S). In both cases, the principal idea was to design and operate a dedicated air collection system that would be used for the treatment of the gases, and that would work independently from the general ventilation system. The advantages envisaged: (1) if collected at a point close to the source of generation, pollutants would
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