Speaking of castor beans, I believe that older farmers and friends will not be unfamiliar, but if you say that castor beans are highly toxic, there may be a lot of people will not believe it, and there are even people who say that he once consumed castor oil. The reason why the toxicity of castor seed is ignored, because the value of castor is relatively large, people pay attention to its role, but ignored its toxins.

Castor is more adaptable to the environment, in addition to the colder places in the north of China, most areas are able to be cultivated. Especially around the 80s, when every household in rural areas will plant castor beans. Because of the castor's ability to adapt to the environment, so in the countryside in front of the house are able to see the castor growing traces of this kind of plant that is commonplace, if it is said that it is poisonous and highly toxic, may be opposed by many people.

In the castor mainly contains ricin and other substances, this material is able to cause poisoning of the main elements. Through the relevant information, swallowing two to seven grains will be able to make a child poisoning, or even death, swallowing 20 grains can lead to adult poisoning, or even death. This is definitely not alarmist talk, but a result of scientific verification. Therefore, there are news reports, castor beans are also being used to refine highly toxic substances, are used abroad in the military "weapons".

Because castor oil extracted high viscosity, low freezing point, and very cold and high temperature resistance, but also other fats and oils can not be replaced by a product, therefore, in the past, the industrial exploitation is not developed enough, castor oil is used in industry, used to make lubricating oil for machinery, textiles, printing, and pharmaceuticals have a very high value. As the value produces economic benefits, which is the main reason why farmers in those years a large number of cultivation.

Castor in addition to industrial use is more extensive, there are many uses in agriculture. Such as castor leaves is a good feed for sericulture, sericulture in rural areas in the past, in addition to the use of mulberry leaves, most of the rest are castor leaves. Secondly, castor oil residue, is a very good organic fertilizer, especially for planting vegetables on the use, not only rich in nutrients, and can also reduce the occurrence of pests.

In the rural areas of the year, because the farmers' economic resources are not many ways, daily life, farmers rely on food crops in addition to the production of cash crops, planting cash crops is relatively small, even if the planting of cash crops, more than their own food, the market sales range is relatively narrow, the economic value of the market is not high, and the initial investment is also relatively large.

Castor beans are different, it is adaptable to the environment, do not need to take up arable land planting, farmers can be in front of the house, deserted home base, roadside, or ditches can be planted, and castor beans the price of the year is not low, but also very convenient to sell, the village is always purchasing vendors door-to-door purchase.

I now realize that at that time in the countryside planted a piece of castor beans, a year can sell dozens of dollars, for farmers and friends have a great attraction, in the case of the toxicity of the castor beans and do not know too much about the role of economic interests, so it will be a large number of planting. What's more, castor beans taste bitter, extremely difficult to eat, and therefore will not easily lead to the phenomenon of human and animal poisoning.

Conclusion: However, in recent years, industrial oil has a better natural oil, can replace the castor oil, castor seed oil in the amount of use is greatly reduced, castor seeds in the industry is less utilized, the economic value of reducing the phenomenon of castor planted in the countryside has gradually disappeared, not to mention that there is no rural traders door to door to buy castor, even if some people planted a few, but also just as an appreciation of the plant. is when an appreciation of the plant.