Why do there be wild tomatoes in China?

The traditional view is that tomatoes were eaten only as vegetables and fruits, and were first introduced by Europeans in the nineteenth century, in the late Qing Dynasty.

In the name of food, better edible varieties were selected and introduced into China. Before that, tomatoes were only made as ornamental plants in China. The first document to record tomatoes is found in Zhao Han's Plants (1617) of the Ming Dynasty, in which Zhao Han mentions that tomatoes were written by Western missionaries in an earlier Wanli.

years, and sunflowers.

Brought to China together. 1621 Wang Xiangjin's "Qunfang Spectrum".

It reaffirmed the ** of tomatoes, and people in the future believed in it until 1983. Tomato.

Around mid-July 1983, in the northern suburbs of Chengdu Phoenix Mountain.

In the excavated tombs of the Western Han Dynasty, nearly 60 pieces of pottery, lacquerware, rattan and bamboo pipes were unearthed, and food remains such as rice grains, fruits, and animal bones were found. In order to maintain a certain humidity, the excavators covered the rattan and bamboo vessels with a damp cloth and transported them to the warehouse of the cultural relics storage center for preservation. A strange thing happened, and after more than ten days, people found that there were plant shoots growing inside and outside the bamboo and rattan pipes, and they were very surprised.

In order to find out the details of this plant, the archaeologists invited experts from the Sichuan Academy of Agricultural Sciences and the Chengdu Branch of the Chinese Academy of Sciences to study, but the experts could not make a conclusion at that time, so they decided to bring the germinated seeds back for cultivation. Vegetable experts from the Chengdu Institute of Agricultural Sciences divided the germinated seeds into four pots and cultivated them in a greenhouse, and the researchers continued to cultivate them in a larger area in the following years, and found this small tomato.

The growth pattern is different from that of modern tomatoes: first, it can grow and bear fruit from cuttings; Second, it is able to bloom and bear fruit in the cold winter months. After summarizing the environment of the excavation site and academic debate, archaeologists determined that in the Western Han Dynasty 2,100 years ago, the tomb owner had used this small tomato as a vegetable or fruit to eat, and the experts further concluded that the small tomato in the Western Han Dynasty already had the characteristics of cultivation.

In this way, the history of eating and cultivating tomatoes was suddenly advanced by 1,700 years. The discovery of tomatoes in the Western Han Dynasty has opened a new way of thinking for paleobotanists and vegetable experts in China, who began to look for the descendants of the Chinese ancestors of tomatoes in the mountainous areas of Yunnan, Sichuan and Guangxi.

In Jiuzhaigou. region, this small tomato has also been discovered), and experts from the Shanxi Academy of Agricultural Sciences have specially used wild tomatoes found in Guangxi to cultivate a large area.

For wild tomatoes, which are tomatoes that grow naturally from nature, that is, what we call tomatoes, which are now gradually evolving, a relatively small kind of tomatoes, that is, degraded tomatoes, are called "goat's milk persimmons" in the supermarket, ** higher than large tomatoes, indicating high nutritional value.

Wild tomatoes** In the Peruvian region of South America, a villager found wild tomatoes in the primeval forest, which was used as an appreciative plant until home, and was later planted by local villagers, and as an ornamental plant, after all, the original tomatoes are relatively small and the red color is relatively strong, so they are very beautiful.

In the history of human development, the long-term life experience summarizes that the fruits are relatively bright and beautiful, and they all contain toxins, such as poisonous mushrooms are particularly bright, and once people eat them, they will be poisoned and die, so for a long time, human beings do not try wild tomatoes. It wasn't until later that a European scholar, risking his life, tried a wild tomato, that is, a wild tomato, and the result was very refreshing and delicious, and no poisoning was found, so that wild tomatoes could be eaten.

Since wild tomatoes began to be discovered by humans, and transplanted to live, and multiplied and planted, becoming ornamental plants, it means that wild tomatoes can be planted, and wild tomatoes have strong vitality, as long as there are seeds, as long as they are sprinkled in the ground, and the management method is very extensive, they can bear tomatoes.

In fact, it is also the tomatoes that are often seen in our rural vegetable gardens, even in the fields, wild tomatoes can be seen on the ditches. In fact, these are also tomatoes, not wild tomatoes found from the primeval forest in the real sense, a kind of small tomatoes with strong vitality that have been artificially cultivated, and it can also be understood that artificially cultivated large tomatoes, after planting, will gradually appear small tomatoes, and gradually degenerate into wild tomatoes. For example, after humans eat tomatoes raw, the seeds are excreted with the feces, and wild tomatoes will grow in the second year in the field, which is the main reason why people find tomatoes in the field without planting.

In short, wild tomatoes can be planted, and the way of planting is very simple, the way of management is also very simple, the method of planting is simpler, as long as the seeds are buried in the ground, of course, it is best to bury them in the ground in the spring, tomatoes will sprout and grow, blossom and bear fruit, without special management methods, and also tomatoes I also attract pests and diseases, the results are particularly many, the vine stems are particularly long, the yield per mu is quite high, the yield of nearly 10,000 catties, and the fruiting time is also particularly long. In fact, the small tomatoes in the big supermarkets are also called goat's milk persimmons, which are wild tomatoes, also called wild tomatoes.

Tomatoes are warm-loving, with a suitable temperature of 25 28 during the day and 16 18 at night. Below 15, tomato seed germination, pollination and fertilization and tomato turning red were affected: below 10, the growth was slow, reproductive development was inhibited, the stems and leaves stopped growing at 5, 2 were cold-damaged, and 0 was frozen to death.

More than 35 years of reproductive development is affected, and more than 40 percent of people die of physical disorders and heat. Sufficient light and suitable temperature difference are conducive to the accumulation and ripening of nutrients, promote the healthy development of plants, prevent overgrowth, enhance the disease resistance and stress resistance of tomatoes, and improve yield.

Humidity requirements. The basic principle is that high humidity is not required in other periods, except for the germination, emergence and slow seedling stage after seedling planting, which requires higher temperature and humidity. In addition to the appropriate control of water before planting, flowering and ripening period, sufficient water should be ensured in all other stages**.

Principles of fertilization. Tomato needs a large amount of fertilizer, and sufficient nutrition should be ensured in each period, but there are certain differences in the amount of fertilizer in each growth period, focusing on nitrogen fertilizer in the early stage, focusing on potassium fertilizer in the later stage, and the demand for phosphate fertilizer throughout the growth period. However, the demand for potassium fertilizer should be ensured throughout the growth period.

Under the condition of ensuring the normal growth and development of tomato, low-temperature exercise was carried out on tomato to promote the normal reproductive physiological process and the recovery of growth as soon as possible after injury. Before seedling sorting and planting, sufficient exercise should be carried out to ensure that the difficult period after the injury is safely passed, and the temperature can be slightly lower during the normal growth stage.

The key to tomato cultivation is to cultivate strong seedlings, which have 6 7 leaves, 60 70 days old, 20 23 cm tall, 60% 70% flower buds.

In tomato production, tomatoes should be fertilized with formulas. The production of 100 kg of tomatoes requires kilograms of nitrogen, phosphorus, and potassium. According to the yield of 5000 kg per mu, it should be applied in stages and in a timely manner, at this time, the amount of fertilizer is large, and the amount of fertilizer should be increased appropriately, each time per mu 29 kg of ammonium sulfate, 18 kg of superphosphate, 20 kg of potassium sulfate.

There are several principles that should be followed during the planting process:

1. According to the soil fertility conditions, comprehensively consider the environmental nutrients**, and appropriately reduce the amount of nitrogen and phosphorus fertilizers.

2. Pay attention to the old vegetable shed to apply more compost containing more straw, and less poultry manure such as chicken manure and duck manure, which can restore soil fertility, supplement carbon dioxide in the shed, and also benefit from desalination and alleviation of continuous cropping obstacles.

3. The temperature is low in early spring, the soil nutrients are slow, the early topdressing should keep up, and the nitrogen fertilizer topdressing should be reduced after May, and the use of potassium fertilizer should be increased; The temperature in early autumn is high, the soil has a strong ability to organic nutrients, and it is mainly controlled, and no top dressing is required.

4. Recommended fertilization should be closely combined with reasonable irrigation, it is recommended to use ditch irrigation under film, drip irrigation, etc., each time irrigation per mu does not exceed 30 square meters, sandy soil does not exceed 22 square meters.

5 For the overwintering tomatoes, sweet corn can be planted by using the summer fallow to achieve reasonable crop rotation and overcome the obstacles of continuous cropping.

Because after tomatoes were introduced to China, new varieties evolved to adapt to China's ecological environment, rather than being native to China.

The word "tomato" is sometimes written as "蕃" with the prefix of cursive. Native to Central and South America, it is now widely cultivated worldwide as a food fruit and vegetable.

Tomatoes were introduced to China around the Ming Dynasty, and at that time they were called persimmons, because they were red in color and came from the West, so they had the name of tomatoes. From China, it was introduced to Japan, and Japan also called it persimmon. Historically, the Chinese used to add the word "tomato" to things imported from abroad, so they called it "tomato."

Because I know that the tomatoes sold on the market are all genetically modified, and the harm to the human body is unknown, I don't want to become this high-tech test field with my family, and I usually have to collect native and wild varieties for seed retention when I am at home, so I am afraid that our country's soybean genes will be hijacked by foreign countries, and our own country's soybean will be violated by native seeds.

The seeds currently collected are: Native Wild Tomato <>

In particular, I would like to introduce the above tomato, the skin is particularly thin, it is impossible to transport it to other places to sell, the juice is very much, the taste is very sour, it is suitable for seasoning, it is easy to survive, and it is just for the sake of inheritance, flowering and fruiting, which is contrary to the genetically modified products that cannot be reproduced.

Yes, it's green, it's eco-friendly, and it tastes better!

It is also edible, though.

It's to eat less.

During the Wanli period of the Ming Dynasty, after Columbus discovered the Americas, European colonists brought back tomatoes, corn, potatoes, etc. from the Americas. These things were transmitted to China in the late Ming Dynasty with the East and the West.

Tomato is also known as tomato, persimmon, angiosperm, dicots, nightshade, nightshade, tomato subgenus, and is an annual vegetable.

Native to South America, it is widely cultivated in all parts of China, and it is produced more in summer and autumn. Red tomatoes, fiery red fruit color, generally slightly oblate and spherical, small umbilicus, thick meat, sweet taste, juicy and refreshing, good flavor, raw food, cooked food can be, can also be processed into tomato sauce, tomato juice.

Pink tomatoes, fruit pink, nearly round spherical, small umbilicus, smooth fruit surface, moderate sweet and sour taste, good quality, yellow tomatoes, orange yellow fruit large, round spherical, thick flesh, flesh and sandy, raw food taste light, suitable for cooked food.

Tomato variety, color, ripeness, sweetness, and even the production season are all important factors that determine the lycopene content in them.

Tomatoes of the yellow variety contain very little lycopene, containing only milligrams per 100 grams; Red varieties of tomatoes are more abundant, generally containing 2-3 mg per 100 grams, and can reach up to 20 mg.

In general, the redder the color of the tomatoes, the higher the lycopene content, and the lower lycopene content of unripe and semi-ripe green tomatoes. There is also a pink tomato on the market, and the lycopene content is not as high as that of red.

The content of lycopene is negatively correlated with the content of soluble sugars in tomatoes, that is, the less sweet the tomatoes, the higher the lycopene content in them.

In addition, the lycopene content in tomatoes produced in summer is relatively high, which is mainly because the abundant sunlight and long light hours in summer will greatly increase the lycopene content; Tomatoes grown in greenhouses in winter have a relatively low lycopene content, which is a must-have for families.