(1) Rice field selection. The farmed plots are required to have convenient transportation, sufficient water sources, and easy irrigation and drainage, and they should be cultivated with shallow soil layers and fertile farmland with bottom soil.
(2) Build a ditch. In the paddy field, trenches are digged in the east-west direction. The ditches are 50 centimeters wide and 40 centimeters deep. The water depth is 25 centimeters. The width of the mantle is 40 centimeters. The field is surrounded by ditches. Each end of the field is ditches, and the other end is separated to form an N-type ditches. The total surface area of ​​the water is about 400 square meters, which accounts for 40% of the rice field area (1000 square meters).
(3) Seed sources. With Daping No.2, Astragalus can choose wild seedlings in the local market, requiring neat specifications (about 30 or so per kilogram), strong activity, health and no damage, and a dark brown body with dark brown spots.
(4) Anti-escape facilities. On the inner side of the ridge, there is an asbestos tile or hard plastic film buried deep inside (until 5 centimeters below the rammed soil layer), and a 40 centimeter excavated a fence that is slightly inclined inwards, and the water inlet and outlet are used to construct a barrier. Or use a net of nylon mesh or linoleum paper at the junction between the wall and the bottom of the field to pressurize the soil to facilitate fishing and escape. Producers can adapt their measures to local conditions, draw materials locally, and do a good job of preventing escape facilities.
2, feeding and management
(1) Disinfection and fertilization. After the sewers are constructed, 15 cm of water is poured. At the end of May, 80-100 kg of lime are sprinkled throughout the field, and 40 kg of rice bran and 400 kg of fermented cow dung are applied to the surface of the hoe, and the soil is loosened by 20 cm.
(2) Nurturing. At the beginning of June, oysters were put in 0.5 kg per square meter, and a thin layer of straw was placed on the surface of the mulberry to provide shade protection. In addition, depending on the breeding growth, feeds such as rice bran or cow dung are regularly or irregularly added and the soil layer is turned loose.
(3) Feeding of cubs. In mid-to-late June (when the cockroaches are multiplying), young puppies are released at a density of about 10 per square meter. When it is put in, the ditch is best divided into sections, and the young quail is evenly distributed in each ditch, and the dead water is allowed to build for one day, allowing it to hide in the cave. On the next day or the third day, remove the partitions, open the ditch, make the ditch open, micro-flowing water in the early days, and increase the water flow in the middle and later period with the growth of the yellow eel.
(4) Disease prevention and control. In addition to smoothing the surface of lime, when the calves were released, they were immersed in 3% saline for 5 minutes (depending on the activity) and sick and frail calves were removed. Sprinkle 30x10 negative concentration of quicklime water on the ditch regularly to prevent the death of batches, and regularly add quail feeds, loosen the soil layer, promote habitat proliferation, and conduct serious inspections. We found that the fences and fences were damaged and repaired promptly. I discovered that rats, water snakes, etc. entered and killed.
3, catching and wintering carefully cultured after about 150 days, that is, around the middle of November arrested. Huang Yu sells high economic returns before and after the Spring Festival. Therefore, it is necessary to strengthen the overwintering management, put the pool water dry, and lay a layer of rice straw or wheat straw on it to achieve the purpose of moisturizing and freezing soil insulation. In addition, it is also necessary to prevent invading pests such as rats and cats.
1. Chemical Composition:sodium methylene bis-naphthalene sulfonate
Appearance: beige brown powder
Solubility: soluble in water of any hardness
PH value: in 1% water solution, PH = 7-9
Performance: good diffusion and protective colloid, and no penetration and foaming .
Ion: anionic.
Stability: resistance to acid, alkaline, hard water, salt.
Affinity: have an affinity for protein and polyamide fibers, for cotton, hemp and other fibers no affinity.
Miscibility: may mix with anionic and non-ionizing surfactant simultaneously.
2. Specifications indicators
|
Items |
Indicators |
|
|
Type |
First Grade |
Qualified |
|
Appearance |
Beige brown powder |
Beige brown powder |
|
Dispersancy (Standard substance) |
≥100% |
≥95% |
|
PH Value (1% water solution) |
7-9 |
7-9 |
|
Sodium sulfate content |
≤3% |
≤5% |
|
Fineness (residuals of 60 mesh/screen) |
≤5% |
≤5% |
|
Calcium and magnesium ions, Ppm≤ |
1000 |
4000 |
|
Impurities (non soluble in water) |
0.05% |
0.10% |
3. Application
Printing and dyeing industry: mainly used for dyeing vat dyes suspension, leuco acid staining, dispersion and soluble vat dyes dyeing. Also be used for silk / wool interwoven fabric dyeing, the yarn is no color. Mainly used for industrial dye dispersion and diffusion of color lakes manufacturing additives.
Building materials industry: as early strength cement water reducing agent, the amount of 0.5-1% by cement after the shock has good dispersion effect, increasing the strength of cement. Diffused N of concrete tensile strength, impermeability, frost and compressive modulus of elasticity are improved, no corrosion of steel effect.
Pesticide industry: It can be widely used in wettable pesticides, with good dispersion and solubilization, can significantly improve the efficacy, dosage according to product requirements. Example: buprofezin, the amount of 3-5 %; thiophanate amount of 0.8-1.5 %, 0.8-1 % Kai Ling vegetables.
Electroplating industry: the color is added, crossing pigment dispersants N allows uniform dispersion can significantly improve the plating surface brightness, and the amount is usually 10% of the pigment.
Rubber industry: rubber (latex) of industrial production process, the dispersed substances such as sulfur accelerator, antioxidant zinc oxide fillers ( such as barium sulfate , calcium carbonate ), etc., added to the dry weight of a dispersing agent N2-4% , 10% dispersant solution prepared in advance , and along with the other components in a ball mill grinding , can improve the dispersion effect and shorten the milling time .
Packing: 25kg bags.
Storage: two years and must be upload and download lightly.
Dispersant N,Dispersant,Dispersing Agent Nno,Dispersing Agent
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com