When are the vines covered in the greenhouse?

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Answer: The cultivation promoted in the greenhouse, the sooner or later the filming time is directly related to the sooner or later of the grape fruit maturity. According to the characteristics of the local climate, it should not be too early or too late. If the natural dormancy time of the grapes covered by the shed is not reached too early, the cold demand (generally the cold demand of grapes is below 7.2 ℃ and the temperature is 700-1500 hours) is insufficient. Germination rate is reduced. However, covering the shed too late did not show the effect of early cultivation. The period of local canopy is appropriately carried out according to the characteristics of different cultivars. Varieties with short cold demand, such as Venus Seedless, Early Jade, and Purple Jade (requires 700 ~ 1000 hours of cold demand) can be covered in early January. Varieties such as Fujiminori, Xiahei, and Jingya (requires 1,100 to 1,300 hours of cooling) can be covered in the middle and late January, and should be completed by the end of January at the latest.

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Water Test

Water is vital to human life. Drinking water, swimming pool water, SPA water, aquarium water, pond water, related to the quality of everyone's life, how do you ensure the quality of water? Water quality test strips, of course. These convenient and easy-to-use strips quickly and accurately test for a range of contaminants and keep you and your family safe.


Water Quality Test Introduction
Water Quality Test Strips can provide Fast and Accurate water test results for 39 parameters such as pH, Total alkalinity,Residual chlorine,Total chlorine,Nitrate, NitrIte, Hg, Lead, Iron, Copper, Fluoride, Cyanuric acid, Bromine, Cr, Hardness, Sulfate, Carbonate root, Hydrogen carbonate root, Quaternary ammonium salt, Potassium permanganate,Sulfite, VC, Calcium, hydrogen peroxide, Escherichia Coli, phosphate, Sulfuretted Hydrogen, chlorine dioxide, peracetic acid,sulfur dioxide, Ammonia Nitrogen, Ammonium Chloride,lodine,Aluminum,Zinc,salt kalium/potassium, manganese,phosphorus.
We offers a full line of high quality, professional Aquarium test strips, Pool & Spa test strips and Drinking Water Test Strips to help customers meet their water testing requirement.

TEST PROCEDURE
Immerse the strip for 2 seconds and then remove the strip.
Do not shake excess water off, and then hold the strip horizontally for 20 seconds.
Compare against the color chart and read immediately within 30 seconds to get accurate result.
IMPORTANT TO KNOW
1.Test for 30 seconds
When using the water test strip, your results are complete (ready to compare) after dipping the
test strip. Upon completion, make sure to compare your results immediately. The strip is no
longer valid outside of the 30 second testing period Discard the test strip after 60 seconds as
any further color change will be meaningless.
2.Prevent altered results
Here`s what you can do to prevent decreased shelf life of the strip and altered results
Do Store in a cool dry place away from direct sunlight.
Do read the instructions carefully before use.
Do Avoid touching or polluting test areas of the strip.
Do not place wet fingers in the bottle.
Do Keep the cap on tight between use.
Do not remove the desiccant pouch.
3.Primary and Secondary water Regulations
The EPA sets legal limits on over 90 contaminants in water test strip. There are two categories,
primary and secondary. Primary contaminants are substances that can be toxic in small amounts
On the other hand, secondary contaminants are less toxic species and would include cosmetic
issues (color, taste, and odor) of water. These strips test for the most commonly found primary
contaminants lead, fluoride, copper, chlorine, nitrite, nitrate) as well as the most commonly found
secondary contaminants(Copper, Iron, Sulfate, Zinc, Manganese, Fluoride, Chloride, and pH)



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