Schleswig, the founder of the post-Zhao dynasty, was originally a Jiezu who entered the fortress. After he became emperor in Guo Xiang (now Xingtai, Hebei), he was very angry because people in his country called Jie people conference semifinals. Schleswig made a law: no matter what you say or write, it is forbidden to use the word "Hu", and offenders ask for forgiveness.
One day, Schleswig-Holstein called local officials in Shanyu Pavilion. Fan Tan, the general, came to see Liu Bei in rags, and he was very dissatisfied. He asked, "Fan Tan, why didn't you appear in court neatly?" Fan Tan didn't know how to answer in a panic, and casually replied, "It's all because the Hu people have no morality and took all the clothes, which made me come to North Korea in rags." As soon as he finished speaking, he realized that he had violated the ban and quickly kowtowed and repented. When Schleswig saw that he knew the crime, he stopped suing. During a routine lunch, Schleswig pointed to a plate of gourd silk and asked Fan Tan, "Do you know the name of this thing?" Fan Tan saw that Shile was deliberately questioning him, so he respectfully replied, "Purple case delicacies, silver cups of green tea, golden bottles of nectar, and jade plate cucumbers." Schleswig-Holstein smiled with satisfaction.
Since then, cucurbit silk has been called cucumber and circulated between the government and the opposition. By the Tang Dynasty, cucumber had become a common vegetable in the north and south. There are many kinds of cucumbers now, which can be roughly divided into spring cucumber, shelf cucumber and dried cucumber. China's famous varieties are Beijing thorn melon and Ningyang thorn melon, which are beautiful in appearance, thin in skin and thick in flesh, and small in flesh.
cucumber
(Cucumber) (Cucumber) Cucurbitaceae, Cucumber. Annual creeping or climbing herb with slender stems with longitudinal edges and short bristles. Cucumber, also known as cucumber, thorn melon and cucurbitaceae millet. Cucumber has a long history of cultivation and is widely planted. It is a worldwide vegetable. Guangzhou cucumber has a long cultivation season, and it can be cultivated in the open field for more than 9 months. Protected cultivation can achieve annual production and supply, with an annual planting area of 500-65438+ 10,000 mu, which is one of the important markets and export vegetables.
Cucumber has shallow root distribution and weak regeneration ability. The stem is vine-like, 3 meters long and branched. The leaves are palm-shaped, large and thin, and the leaf margin has fine serrations. Flowers are usually monoecious. Fruit, a few centimeters to more than 70 centimeters long. The color of tender fruits ranges from milky white to dark green. The fruit surface is smooth or has white, brown or black thorns. Some fruits are bitter because of cucurbitacin. The seeds are flat and rectangular, and the seed coat is light yellow. The main types of cucumber cultivated in China are: North China type, mainly distributed in the provinces north of the Yangtze River; South China type, mainly distributed in southeast coastal provinces; British greenhouse type, European and American cold food type and acid soaking processing type. Cucumber is a warm crop. The optimum temperature for seed germination is 25 ~ 30℃, and the optimum temperature for seed growth is 18 ~ 32℃. Cucumber has strict requirements on soil moisture conditions. Adequate water supply is needed in the growing period, but the root system is not tolerant to hypoxia and high concentration of soil nutrients. The suitable pH value of soil is 5.5 ~ 7.2. Cucumber can be planted all year round. Seedling raising is often used in winter and spring cultivation. Use scaffolding for cultivation instead of weighing cucumbers. The growth period is long and the amount of fertilization is large. In China, base fertilizer is the main fertilizer, and topdressing is carried out many times during the growing period. Water properly in rainy areas, and pay attention to drainage and flood prevention in rainy areas. The harvest is carried out in stages. The tender fruit is usually harvested 7 ~ 15 days after the female flower blooms. The main diseases are downy mildew, powdery mildew, Fusarium wilt, Fusarium wilt, angular leaf spot and anthracnose. The main pests are: cotton aphid, red spider, greenhouse whitefly, lateral eating mite, cucumber worm and seed fly. Cucumber is an outcrossing crop, so it should be collected in isolation. Young fruits are eaten as vegetables. The pulp can be eaten raw. The contained protease helps the human body to digest and absorb protein, and the fruit can be pickled or pickled.
This family belongs to the fruit of Cucumber, a cucurbitaceae plant.
Alias zucchini, thorn zucchini, zucchini.
Improved strain
At present, South China cucumber and North China cucumber are planted in Guangzhou, and the main cultivated varieties are as follows:
1, Yuanfengyuan No.6 cucumber: produced by Yuanfengyuan Vegetable Research Institute in Xia County, Shanxi Province. It is the first generation hybrid with early maturity and vigorous growth. The main side vines have melons, and the female flower rate is high. The melon is straight, dark green, shiny, 35 cm long, with dense thorns, short stalks and good quality, with a yield of 5000 kg per mu. Suitable for planting in spring, summer and autumn.
2. Zaoqing No.2: A first-generation hybrid of South China cucumber bred by Vegetable Research Institute of Guangdong Academy of Agricultural Sciences, with strong growth potential, main vines bearing melons and many female flowers. Melon is cylindrical, with dark green skin and length of 2 1 cm. Suitable for sale in Hong Kong and Macao, resistant to low temperature, Fusarium wilt, anthracnose, downy mildew and powdery mildew. 53 days from sowing to the first harvest. Suitable for cultivation in spring and autumn.
3. Jinchun No.4 Cucumber: A first-generation hybrid of North China cucumber bred by Tianjin Cucumber Research Institute, which is resistant to downy mildew, powdery mildew and Fusarium wilt. The main vine bears melons, which are early-maturing, medium-growing, rod-shaped and 35 cm long. Suitable for open cultivation in spring and autumn.
4. Yuexiu 1: A new hybrid of cucumber in North China bred by Vegetable Research Institute of Guangdong Academy of Agricultural Sciences. The main vine bears melons, and the female plant rate is 65%. Melon is rod-shaped, 33 cm long, precocious, resistant to low temperature, Fusarium wilt, anthracnose, epidemic disease and downy mildew, and suitable for open cultivation in spring and autumn.
5. Zhongnong No.8: A first-generation cucumber hybrid in North China, which was bred by Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences. Plants grow strongly and have many branches, mainly melons, and are resistant to downy mildew, powdery mildew, cucumber mosaic virus disease, Fusarium wilt, anthracnose and other pests and diseases. Suitable for open cultivation in spring and autumn.
Key cultivation techniques
1, soil selection and soil preparation
Choose cohesive sandy loam with pH value of 6.0-7.5, rich in organic matter, good drainage and irrigation performance, and water and fertilizer conservation to avoid continuous cropping with melon crops. The previous crop is preferably paddy field. Soil preparation adopts deep ridge, width 1.8m-2.0m (flat ridge), ridge height of 30cm, north-south direction, double-row planting, plant spacing of 30cm.
2, timely sowing, seedling raising and planting.
Sow in early spring1-March, and sow in summer and autumn from June to August. Spring sowing adopts seed soaking to accelerate germination, seedling raising or plastic film mulching direct seeding, and summer and autumn seed soaking direct seeding or dry direct seeding can be used.
Soaking seeds to accelerate germination is widely used in cucumber sowing. Scald the seeds with warm water at 50-55℃ for 65438 00 minutes, and keep stirring to prevent burns. Then soak it in warm water at about 30℃ for 4 -6 hours, scrub it clean, drain it after soaking, moisturize it in an incubator at 28-30℃ or a warm place to accelerate germination, and start germination after 20 hours. In early spring, seedlings were raised with small arch shed for heat preservation. Seedlings are cultivated in seedling cups or seedbeds. When seedling age 15-20 days (two true leaves), plant in sunny evening. Attention should be paid to protecting the root system, watering thoroughly with water before seedling raising, and planting with soil to prevent root damage.
3. Fertilizer and water management and soil cultivation
Applying sufficient base fertilizer is one of the keys to stable and high yield. Cucumber responded well to base fertilizer. When preparing soil, deep ploughing is added with decomposed organic fertilizer, 2000 -3000 kg/mu, 50 kg of gross fertilizer and 30 kg of calcium superphosphate as base fertilizer. When the plant has 2-3 true leaves, topdressing is started. Cucumber root system has weak absorption capacity and is sensitive to high concentration fertilizer. Topdressing is based on the principle of "applying fertilizer frequently and sparingly", with topdressing 1 time every 6-8 days and 5-6kg urea per mu.
When tendrils appear, we should combine intertillage with weeding and fertilization. After the first batch of melons are harvested, fertilizer should be applied 1 time, peanut bran 15 kg -20 kg, compound fertilizer 30 kg and potassium fertilizer 10 kg per mu.
In summer and autumn, due to the high temperature, rapid growth and aging, heavy rainfall and much loss of fertilizer and water, in addition to applying sufficient base fertilizer, topdressing should be done as soon as possible. During the true leaf stage of 1-2 and after the first batch of melons are harvested, it is necessary to carry out 1 time soil cultivation and fertilization, and pay attention to phosphorus and potassium fertilizers to avoid steep growth and premature aging.
Water should be controlled in spring cucumber seedling stage. The water demand is the largest in the flowering and fruiting period, with water spraying 1 time in sunny days and irrigation 1 time in 3-5 days of drought. Do a good job in flood control in rainy days.
4. Guiding and pruning of erect vines
Generally, when tendrils appear, bamboo is inserted to set up a frame to draw vines and set up a "herringbone frame". After the tendrils appear, they will be painted once every 3-4 days, so that the plants are evenly distributed and carried out in the sunny evening. Whether cucumber is pruned depends on the variety, and the main vine generally does not need pruning; If the main side vines bear fruit or the side vines bear fruit, they should be pruned. Generally, all the side vines below 8 knots are cut off, 3 knots are left at the top of the side branches above 9 knots, and about 30 knots are left at the top of the main vines.
Step 5 harvest
It takes about 55 days from sowing to first harvest in spring, and 35 days in summer and autumn. It can be harvested about 10 day after flowering. That is, the skin color changes from dark green to bright green and shiny, and it is better to harvest when the petals do not fall off. The first melon should be harvested early, so as not to affect the growth of subsequent melons, or even hinder the growth of plants, forming deformed melons and premature senescence of plants, thus affecting the yield.
Eliminate pests and diseases
The common diseases and pests that harm cucumber are the same as bitter gourd, as well as gray mold and bacterial angular leaf spot.
1, gray mold
(1) Ecological control: water in the morning, and properly control water at the early stage of the disease to prevent excessive watering;
(2) Remove diseased fruits and leaves in time after the onset, and burn or bury them deeply;
(3) Chemical prevention metallurgy: spraying 25% diclofenac EC for 3000-4000 times, 30% Aimiao EC for 3000-4000 times, 900- 10% Baolian wettable powder and 50% Sukeling wettable powder for 2000 times at the initial stage of the disease. Or 45% Tektronix suspension 3000-4000 times, 50% chlorpheniramine WP 1500 times, 40% polysulfide suspension 600 times, 2% wuyiencin aqueous solution 150 times, once every 7- 10 days for 2 consecutive days.
2. Bacterial angular leaf spot
Most of them occur in high temperature and rainy season, and germs overwinter in seeds and soil. Pathogens invade through wounds and water holes. High temperature and rainy weather, low-lying water accumulation, continuous cropping for many years and improper management of fertilizer and water will aggravate the occurrence. After the storm, it developed rapidly and caused serious losses. The disease should focus on prevention, prevention and control methods:
(1) Seed disinfection: soak the seeds in 3000-4000 times of 72% agricultural streptomycin soluble powder solution for 2 hours, or soak them in 150 times of 40% formalin solution for 90 minutes, wash them with clear water, and then soak the seeds according to the conventional operation to accelerate germination;
(2) Chemical control: 30% copper oxychloride colloidal suspension 800 times solution, or 77% chlorhexidine wettable powder 1500 times solution, 2% carbaryl Su Ming solution 400-500 times solution, 72% agricultural streptomycin soluble powder 4000 times solution, neophytomycin 4000 times solution and agricultural antibiotic10.
Sexual and taste efficacy
Cool and sweet; Enter lung, stomach and large intestine meridian.
Efficacy indication
Clearing away heat and promoting diuresis, detoxicating and detumescence, promoting fluid production and quenching thirst. Indications: body heat, polydipsia, sore throat, wind-heat eye diseases, damp-heat jaundice, dysuria, etc.
nutritional ingredient
Every 100g contains 0.6-0.8g of protein, 0.2g of fat, 0.6-2.0g of carbohydrate, 0.4-0.5g of ash, 0.5 0.5- 19mg of calcium, 29-33mg of phosphorus and 0.2-65438 of iron. In addition, it also contains glucose, rhamnose, galactose, mannose, xylose, fructose, caffeic acid, chlorogenic acid, various free amino acids, volatile oil, cucurbitacin, cucumber enzyme and so on.
food therapy
1. Cucurbitacin C contained in anti-tumor cucumber can improve human immune function and achieve the purpose of anti-tumor. In addition, the substance can also treat chronic hepatitis and persistent hepatitis, and prolong the survival time of patients with primary liver cancer.
2. Anti-aging cucumber is rich in vitamin E, which can prolong life and resist aging; Cucumber enzyme in cucumber has strong biological activity, which can effectively promote the metabolism of the body. Rubbing the skin with cucumber juice has the effect of moistening skin and stretching wrinkles.
3. Alanine, arginine and glutamine contained in hangover-relieving cucumber have certain auxiliary therapeutic effects on patients with liver diseases, especially those with alcoholic cirrhosis, and can prevent and treat alcoholism.
4. Glucosides and fructose contained in hypoglycemic cucumbers do not participate in the usual sugar metabolism, so diabetics use cucumbers instead of starchy foods to satisfy their hunger, and their blood sugar will not increase or even decrease.
5. Propanolic diacid contained in weight-loss cucumber can inhibit the conversion of sugar into fat. In addition, the cellulose in cucumber can promote the elimination of spoilage substances in human intestine and reduce cholesterol, which can strengthen the body.
6. Brain-nourishing and tranquilizing cucumber contains vitamin B 1, which is beneficial to improve the function of brain and nervous system, calm and soothe the nerves, and assist in the treatment of insomnia.
Healthy diet
1. sweet and sour cucumber sliced cucumber 500g, salt, sugar and white vinegar. First, wash the cucumber, cut it into thin slices and marinate it with salt for 30 minutes; Wash cucumber with cold boiled water to remove part of the salty taste, control the moisture, and add refined salt, sugar and vinegar 1 hour. This dish is sweet and sour, and has the effects of clearing away heat, appetizing, promoting fluid production and quenching thirst. It is suitable for polydipsia, greasy mouth and anorexia, especially in summer.
2. Porphyra cucumber soup 150g cucumber, 15g laver, and appropriate amount of dried laver. Firstly, cleaning cucumber, cutting into rhombic blocks, and cleaning laver and dried seaweed; Add clear soup to the pot, bring to a boil, add cucumber, dried laver, refined salt and soy sauce, skim the foam after boiling, add laver, pour sesame oil, sprinkle with monosodium glutamate and mix well. The decoction has the functions of clearing heat and tonifying kidney, and is suitable for female climacteric patients with kidney deficiency and excessive heat.
3. Hawthorn juice mixed with 5 cucumber tender cucumbers, 30 grams of wild vegetables and 50 grams of sugar. First, peel the cucumber from the heart and both ends, wash it and cut it into strips; Wash hawthorn, add 200 ml of water to the pot, cook for about 15 minutes, and take juice 100 ml; Cucumber strips are put into a pot, boiled and fished out; Add sugar to hawthorn juice and simmer slowly. After the sugar melts, add dried cucumber strips and mix well. This dish has the functions of clearing away heat, reducing blood fat, losing weight, promoting digestion and resolving food stagnation, and is effective for people with obesity, hypertension and sore throat.
4. Cucumber dandelion porridge 50 grams of cucumber and rice, 30 grams of fresh dandelion. Firstly, cucumber is washed and sliced, and dandelion is washed and chopped; Wash the rice in the pot first, add 1000 ml water, and cook porridge as usual. After the porridge is cooked, add cucumber and dandelion and cook for a while. This porridge has the effects of clearing away heat and relieving summer heat, diuresis and detumescence. It is suitable for excessive toxic heat, sore throat, wind-heat eye diseases, short and red urine, etc.
Note: patients with cucumber cold and stomach cold are prone to abdominal pain and diarrhea.
Selected document
"Daily Materia Medica": "Eliminate the heat in the chest, relieve polydipsia and benefit the waterway."
Lu Chuan Ben Cao: "Cure fever, thirst and burns."
Herbal Medicine in Southern Yunnan: "Relieve spasm, heat toxin and clear polydipsia."
"Materia Medica Seeking Truth": "It tastes sweet and cold, and it can clear away heat and benefit water."
Cultural appreciation
Prince Don Zhang Huai. "Huangtai Melon Ci": "Melons are planted under Huangtai, and ripe melons give birth to leaves. Pick the melons well, and then pick them thin. Three picks are still good, and four picks hold vines. "
Wu. "Selling Cucumber": "Jujube flowers shed their clothes, and the village in the south is surrounded by the north. Cow clothes and ancient willows sell cucumbers, and it's a long way to go in Xiu Yuan. The Japanese are thirsty for tea and knock on the door to ask the wild people. "
Qing Wu Ye Wei. "Ode to a Melon": "Who can be the same? Leave early, the car is full, the vines attract the blue embankment, and the song loves the yellow flowers. When a guest is drunk, it should be refreshing, but a child's cold pillow tends to tilt. Qi Min made up a monthly order, and the melon road weighed heavily on the Wangs.
Huang Qing Zhijun. "Planting Wang Gua Li Bean Vegetable": "I will hold the urn body in the end, and five pots are not listed. If you know anything, you will lead me. The vine covers the wild, and the root kills people. Go and tell my parents that the poor son is really poor. "
Historical legend: Cucumber originated in India and was brought back to China by Zhang Sai when he went to the Western Ocean. It was called cucumber at that time. In the Eastern Jin Dynasty, she became the queen of Zhao. He was dissatisfied with the Han people calling the northern minorities "Hu people", so he changed his name to cucumber to avoid the word "Hu". Some southerners can't distinguish the pronunciation of "Huang" and "Wang", so they are also called "Wang Gua".
Cucumber itself is a good nutrient.
As far as cucumber is concerned, it is a delicious and nutritious vegetable. In taste, cucumber meat is crisp and tender, with sweet juice and delicious fragrance. In terms of nutrition, it contains protein, fat, sugar, vitamins, cellulose and rich ingredients such as calcium, phosphorus, iron, potassium, sodium and magnesium. In particular, the micro-cellulose contained in cucumber can reduce the contents of cholesterol and triglyceride in blood, promote intestinal peristalsis, accelerate waste excretion and improve human metabolism. Propionic acid contained in fresh cucumber can also effectively inhibit the conversion of sugar into fat. Therefore, eating cucumber regularly can reduce weight and prevent coronary heart disease.
Cucumber destroys the nutrition of other foods.
Why is it best not to have cucumbers for a "bumper harvest"? Because cucumber contains a vitamin C decomposing enzyme, it will destroy vitamin C rich in other vegetables. Tomatoes in the "bumper harvest" are typical vegetables rich in vitamin C. If we eat them together, the vitamin C we take from tomatoes will be destroyed by the decomposing enzymes in cucumbers, and the nutritional supplement effect will not be achieved at all. In addition to eating a "bumper harvest", people often eat a cucumber and then a tomato; Or there is already a plate of "scrambled eggs with tomatoes" on the dining table, and then a plate of "fried meat with cucumbers". None of these ways are correct.
In addition, the more vitamin C content in food, the more serious it is destroyed by the decomposing enzymes in cucumber.