scholarly journals EFFECT OF COPPER SULFATE FILTERS ON GROWTH OF BEDDING PLANTS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1144a-1144 ◽  
Author(s):  
Jodi Benson ◽  
John Kelly
Keyword(s):  
Plant Height ◽  
Copper Sulfate ◽  
Red Light ◽  
Dry Weight ◽  
Sulfate Solution ◽  
High Ratio ◽  
Copper Sulfate Solution ◽  
Bedding Plants ◽  
Light Passing ◽  
Bedding Plant

Height control is a major concern when growing bedding plants. Growth regulating chemicals are often applied to regulate height of bedding plant species. However, reductions in plant height have been observed when plants were grown under light with a high ratio of red to far red light. Light passing through clear double walled, acrylic panels filled with copper sulfate solution has a high red to far red ratio. This work examined the effect of growing tomatoes, peppers, pansies, petunias, geraniums, and impatiens under panels filled with 4, 8, and 16 percent copper sulfate solution. Plants were grown for approximately 3 weeks in cell packs, then data were taken on plant height, number of leaves, leaf area, fresh and dry weight, and chlorophyll content. Significant reductions in height (40-66%) were achieved by growing bedding plants under any of the copper sulfate concentrations.

Computed tomography assessment of soil and sediment porosity modifications from exposure to an acid copper sulfate solution

2021 ◽  
Vol 108 ◽  
pp. 103194
Author(s):  
Francisco R.A. Ziegler-Rivera ◽  
Blanca Prado ◽  
Alfonso Gastelum-strozzi ◽  
Jorge Márquez ◽  
Lucy Mora ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Copper Sulfate ◽  
Sulfate Solution ◽  
Copper Sulfate Solution ◽  
Soil And Sediment

The value of red light at night for increasing basil yield

2018 ◽  
Vol 98 (6) ◽  
pp. 1321-1330
Author(s):  
Jaimin S. Patel ◽  
Leora Radetsky ◽  
Mark S. Rea
Keyword(s):  
Plant Height ◽  
Red Light ◽  
Leaf Size ◽  
Cost Effective ◽  
Dry Weight ◽  
Photosynthetic Photon Flux Density ◽  
Photon Flux ◽  
Photon Flux Density ◽  
Light At Night ◽  
Sweet Basil

Sweet basil (Ocimum basilicum L.) is primarily used for culinary purposes, but it is also used in the fragrance and medicinal industries. In the last few years, global sweet basil production has been significantly impacted by downy mildew caused by Peronospora belbahrii Thines. Nighttime exposure to red light has been shown to inhibit sporulation of P. belbahrii. The objective of this study was to determine if nighttime exposure to red light from light-emitting diodes (λmax = 625 nm) could increase plant growth (plant height and leaf size) and yield (number and weight of leaves) in basil plants. In two sets of greenhouse experiments, red light was applied at a photosynthetic photon flux density of 60 μmol m−2 s−1 during the otherwise dark night for 10 h (from 2000 to 0600). The results demonstrate that exposure to red light at night can increase the number of basil leaves per plant, plant height, leaf size (length and width), and leaf fresh and dry weight compared with plants in darkness at night. The addition of incremental red light at night has the potential to be cost-effective for fresh organic basil production in controlled environments.

scholarly journals Visualization of Latent Fingerprints on Aluminum

2019 ◽  
Vol 73 (11) ◽  
pp. 945-946
Author(s):  
Rachel Fischer ◽  
Marco Oetken
Keyword(s):  
Corrosion Inhibitor ◽  
Copper Sulfate ◽  
Direct Contact ◽  
Sulfate Solution ◽  
Copper Deposition ◽  
Decisive Factor ◽  
Visualization Method ◽  
Latent Fingerprints ◽  
Copper Sulfate Solution ◽  
Negative Image

For aluminum, a new visualization method is presented in which copper is deposited electrochemically. The fingerprint on the aluminum (trace carrier) serves as an insulator as it prevents direct contact between electrolyte and aluminum. The decisive factor is the choice of an ammoniacal copper sulfate solution, which acts as a corrosion inhibitor due to the ammonia molecules. This enables uniform copper deposition on aluminum and thus the development of a clearly defined negative image.

Copper deposition on textiles via an automated dispensing process for flexible microstrip antennas

2014 ◽  
Vol 84 (19) ◽  
pp. 2026-2035 ◽  
Author(s):  
Bing Li ◽  
Dapeng Li ◽  
Jiping Wang
Keyword(s):  
Copper Sulfate ◽  
Copper Deposit ◽  
Sulfate Solution ◽  
Microstrip Antennas ◽  
Driving Pressure ◽  
Copper Deposition ◽  
Electrical Performance ◽  
Complexing Agent ◽  
Patch Antennas ◽  
Copper Sulfate Solution

A three-axis automatic robot was coupled with a precision liquid dispenser to deposit copper on fabrics to be used as the conductive layer for assembly of textile-based flexible microstrip patch antennas. Two reactive solutions, copper sulfate and sodium borohydride, were sequentially dispensed on fabrics and a conductive copper was produced in situ and in real time, through a simple redox mechanism. Driving pressure, the number of dispensing cycles, concentration and composition (i.e. the addition of a complexing agent sodium citrate to the copper sulfate solution) of the reactive solutions were studied to optimize the dispensing process in favor of rapid copper deposition. The electrical performance of the resulting copper deposit and its adhesion to the textile substrates were characterized. A copper coating of about 0.2 ohm/□ sheet resistance could be prepared in less than 1 hour under a 45 kPa driving pressure, at a 200 mm·s−1 moving speed, and within 60 dispensing cycles.

Coordination of copper(II) in aqueous copper sulfate solution

1983 ◽  
Vol 22 (8) ◽  
pp. 1184-1187 ◽  
Author(s):  
A. Musinu ◽  
G. Paschina ◽  
G. Piccaluga ◽  
M. Magini
Keyword(s):  
Copper Sulfate ◽  
Sulfate Solution ◽  
Copper Sulfate Solution
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