Greenhouse Vegetables: Closed Nursery Practices
In Jiangxi Province, the majority of greenhouse vegetable farming currently relies on greenhouses and small sheds. It's crucial for farmers to keep these structures properly closed, especially during colder periods. The director of the Jiangxi Institute of Vegetables under the Jiangxi Academy of Agricultural Sciences emphasizes that maintaining a closed environment is key to protecting crops from harsh weather conditions.
To improve temperature retention, farmers are advised to install an internal insulation film that is about one meter high inside the greenhouse. This helps to trap heat more effectively. During the day, any grasshoppers or pests found on the shed should be removed promptly. However, it's generally recommended not to open the greenhouse unless absolutely necessary. For those with the resources, additional measures such as setting up wind barriers on the back side of the greenhouse can further enhance protection against cold winds and improve overall growing conditions.
By following these practices, farmers in Jiangxi can ensure better crop survival and higher yields, even in challenging weather conditions. It's all about maintaining a controlled and stable environment for the plants to thrive.
Fixative (dye-Fixing Agent)
Active Ingredient: Quaternary ammonium salt cationic surfactant
Chemical Name: Formaldehyde-free Fixing Agent
Chemical Family: PolyDADMAC
CAS No.: 26062-79-3
1.Formaldehyde-free Fixing Agent
2.Has no free formaldehyde,no peculiar smell,no irritation to skin, accord to eco request
[Description]:
Formaldehyde-free Fixative Color Fixing Agent is belongs to polymerization polyDADMAC, a cationic polymer. It can make up of macromolecular compound with dye, then achieve to improve soaping and rub fastness of fabrics. It can be used for color fixing for dyeing and printing of reactive dyed fabrics as cotton, linen, silk, and direct dyed fabrics.
[Specification]:
Appearance: Brownish yellow viscous liquid
Ionic character: Cationic
PH Value: 5-8 (1% aqueous solution)
Dissolution: Dissolve in cold water easily.
Composition: Special polymer compound
[Dilution Method]:
With 4-6 times the water and stir to dissolve dilution.
[Direction for Usage]:(To dilute finished product as an example)
A. Padding Process: 5-20g/L, temperature 40°C-60°C, PH Value:5-8, One-dip-one-nip or Double-dip-double-nip.
B. Dipping process: 1-4% (O.W.F), Room temperature 40°C-60°C, PH Value:5-8, bath ratio:1:8-12,Time: 20-30 min.
[Properties]:
1. Concentrated Formaldehyde-free Fixative Fixing Agent has good color fixing property, can obviously improve the dyeing or printing of fabric soaping, washing fastness and wet rubbing fastness.
2. Can be used for much of the association between dye fixation, anti fading property, does not affect the dyeing or printing of fabric vividness. No effect for the original feel, processing fabric has excellent hydrophilic.
3. Formaldehyde-free Fixative widely used for dyeing or printing of the direct, active dye fixing finishing, good fixation effect, especially for the red dye and Cuilan dyes, particularly prominent, fixation is better than the general Formaldehyde-free Fixative.
4. The dye PH value for a wide range, acid, alkali resistance, resistance to hard water, high temperature resistance, an environment-friendly products, does not contain formaldehyde.
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Specifications: |
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| Appearance: | Colorless, Transparent Colloid |
| Viscosity: | 100cps-80000cps |
| Solid Content: | 40%min. |
| PH (30% solution): |
3 - 7 |
| Ionic Nature: |
Cationic |
| Specific Gravity: | About 1.1 |
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Package and Storage:
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Fixative,Dye-Fixing Agent,Organic Dye-Fixing Agent,Reactive Dye-Fixing Agent
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com