However, we should know that human and animal manure is the best fertilizer for growing vegetables, mainly referring to rotten human and animal manure and urine, and it is a pollution-free, green and healthy organic fertilizer. Human and animal feces and urine have just been discharged, containing a lot of harmful substances and bacteria. Eggs are immature and used directly in vegetable fields. Vegetables can grow well, but harmful substances and bacterial eggs are easy to clean and cause diseases.
Man invented chemical fertilizer. Grain output has been further improved. The emergence of chemical fertilizers has effectively solved the problem of food shortage, but it has also brought about the negative effects of excessive use of chemical fertilizers. The first is the damage of chemical fertilizer to the environment and the harm to the human body. Because chemical fertilizer is a chemical product, the harm of chemical fertilizer to land is self-evident. Long-term use of chemical fertilizers makes the soil harder every year. If you want to increase or maintain crop yield, you must use more and more chemical fertilizers, which will cause a vicious circle of environmental damage. Food produced by chemical fertilizer will damage the life support system of human body, so long-term consumption of food produced by chemical fertilizer will also lead to various diseases.
It is not only healthy, but also produces real green vegetables, which is a real organic fertilizer. In the era without fertilizer, it was the only fertilizer. At that time, people ate with confidence. Now the same variety of dishes are big, but the taste is not as good as before. One of the reasons is that organic fertilizers such as human and animal manure are not used.
Are vegetables grown with human excrement healthier? Will you buy them? A: Since ancient times, farmers have used human and animal manure to fertilize vegetables, which is definitely healthy. Isn't it harmless to grow vegetables with chemical fertilizer? Farmers have their own vegetable gardens, which are economical, applicable and environmentally friendly! Rural people seldom go to the market to buy food.