High yield cultivation of saffron

Crimson saffron, also known as saffron, saffron, sarsaparilla, poland, etc., is a perennial herb of the iris family. In the past, many farmers had planted safflower, but because they did not understand scientific management, the safflower bulbs were longer and smaller, the flowers were opened more and more, and the yield per mu was getting lower and lower. Most of them abandoned cultivation due to no benefit. After more than ten years of planting experiments, Henan Agricultural University and relevant units have shown that as long as the scientific management of the saffron is sufficient, the basal fertiliser should be applied, and the bulbs of more than 8 grams should be selected (Note: the bulbs below 8 grams do not bloom), and the budding technique is adopted. , Appropriate amount of hormones, while increasing the amount of bulbs planted, will ensure the high yield and stable yield of safflower. Planting one mus of saffron, the average mu harvesting dried flowers 1--2 kg, collecting bulbs 600--1000 kg, the domestic market price of safflower 4000--7000 yuan/kg, the international market price of 2,000 US dollars/kg, the market price of bulbs 40--50 yuan / kg. The annual income of a safflower safflower is about 1 million yuan. After the second year, there is no investment in bulbs, and the benefit is greatly increased. In the open cultivation of saffron in September, the north should be sooner rather than later. Early cultivation, early emergence, first hair root, after germination. Indoor flowering bulbs are planted in Daejeon immediately after picking 80% of flowers indoors from late October to mid-November. The saffron grows in Daejeon from mid-November to early May. The time is approximately six months. During this period, the following work should be done: To supply water for science. About 20 days after planting, 2000 kilograms of livestock and manure per acre is used to pour water. Under drought conditions, it is more watery. The saffron will turn green in mid-February of next year, and 300-400 kg of human feces will be applied per acre. Since March, the production of safflower has entered a vigorous stage. 0.2% potassium dihydrogen phosphate is sprayed every 10 days and sprayed 2 to 3 times. To properly regulate moisture. If the safflowers do not have enough soil moisture after the next planting, they must be fully watered. The northern region should be dry and dry. Before entering the winter, water should be sprayed to prevent freezing. In the following year, the water should be re-irrigated in April to meet the growing needs. Pay attention to freezing and keeping seedlings. Although saffron is a hardy-tolerant plant, it must take anti-freezing measures when it encounters severe cold temperatures of minus 20 degrees to 10 degrees. It is covered with a layer of hay, covered with plastic film and windproof. To remove lateral buds in time. When the ball is planted, extra lateral buds have been removed. If another lateral bud is found after growing into the field, insert it with a knife and remove the leaves. Do a good job of pest control. The entire growth period of saffron is basically a low temperature, with few pests and diseases, and it is generally prevented during rejuvenation. In case of rot disease, pour with 5% of the bacillus special 800 times liquid. If there are locusts, use 10% of Dimethoate Emulsion 2000 times spray. At the same time, we must do a good job of rat-biting bulbs and field rabbits to eat saffron leaves. China Agricultural Network Editor

Epichlorohydrin (ECH)

Epichlorohydrin, 3-Chloro-1, 2 - epoxypropene, chloropropylene oxide ,ECH .

Molecular Formula: CH2OCHCH2Cl, C3H5OCl

Properties: It is a volatile, unstable colorless liquid with irritating odor similar to chloroform and ether. Molecular weight is 92.85, density, 1.1806g/cm3, boiling point, 116.11°C, freezing point, -57.2°C, refractive index (nd20), 1.4382, flash point (open cup), 40.6°C, and ignition point, 415°C. It is slightly soluble in water, miscible with many organic solvents, and able to generate azeotrope with a variety of organic liquids.

Main Applications:
Epichlorohydrin is an important organic industrial chemical and a chlorine-consuming product in fine chemicals, mainly for producing epoxy resin, synthetic glycerin, epichlorohydrin rubber, nitroglycerine explosives, glass fiber reinforced plastics, and electrical insulation products, which are widely used in the chemical industry, light industry, transportation, medicine, electronics and other fields. It also can be used as solvent for cellulose ester, resin, and cellulose ether, and the raw material of plasticizer, stabilizer, surfactant, and chloroprene rubber.

Toxicity and Protection: It is highly toxic, absorbed through the skin, and irritating to skin and mucous membranes. In higher concentrations, it has the function of narcotism. When poisoning occurs, there will be eye irritation, conjunctivitis, rhinitis, lacrimation, cough, fatigue, gastrointestinal disorders, nausea and other symptoms. Serious poisoning may lead to anesthesia or even lung, liver or kidney damages. Lethal concentration of human beings is 20ppm. Lethal dose of rat is 5090mg/kg. The maximum allowable concentration in air is 5ppm (18mg/m3). Production equipment needs to be closed, air, circulating, and the operator, wear protective equipment. In addition, due to intense auto polymerization, epichlorohydrin can not be heated in the fire in case of container burst. As for reaction as reagent, it is appropriate to be diluted with inert solvent and slowly added.

Packaging, Storage and Transport:
As ferric chloride or stannic chloride can promote auto polymerization, epichlorohydrin should be stored in dry, clean iron barrel, 200kg each, and kept in a cool, ventilated, and dry place, away from fire and heat. Store and transport in accordance with the provisions of flammable toxic substances.

EPICHLOROHYDRIN SPECIFICATION DATA SHEET

ITEMS	GUARANTEED SPEC
PURITY% (m/m)≥	99.9
DENSITY g/cm3	1.180-1.183
COLOR(pt-co)≤	10
MOISTURE%(m/m)≤	0.05

Epichlorohydrin (Ech),Epichlorohydrin 106-89-8,99.9% Epichlorohydrin,High Quality Epichlorohydrin

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