What are the hidden hazards of farm fertilizer? What are the disadvantages of applying more farm fer

Farmyard manure contains bacteria and pests such as E. coli, nematodes, etc. Direct use can lead to the spread of pests and diseases, crop diseases, and can also affect the human health of edible agricultural products。When immature chicken manure ferments in the soil, it is easy to breed bacteria and pests.

Chicken manure is a breeding ground for camping and root-knot nematodes. The number of eggs carried by chicken manure is 100 per 1000 grams.

Nematodes are extremely sensitive to chemicals. After application, nematodes quickly migrate to a depth of 50 cm meters underground to escape, making it difficult to **. Root-knot nematodes are one of the deadliest hazards, and when insufficient fermentation is applied to the field, a second fermentation will begin when the fermentation conditions are met.

If the roots of the fermentation site are close together and the crop is small, the heat generated by the fermentation will affect the growth of the crop and, in severe cases, lead to the death of the plant.

Livestock farm manure is generally a strong acid fertilizer (pH.

Therefore, fermentation is required to adjust the pH when used. Therefore, the application of acidic farm manure in the orchard is equivalent to "adding insult to injury", causing damage to fruit trees, such as rotten roots, black roots, yellow leaves, premature tree aging, and blocked nutrient absorption.

When raw manure is used in the ground, methane is produced during the decomposition process.

and harmful gases such as ammonia, which cause acid damage and root damage to soil and crops. What's more, the ethylene gas produced has the effect of inhibiting root growth and is also the main cause of root burning. Although raw manure contains a certain amount of organic matter, it takes a certain amount of time to decompose and transform without fermentation, and the decomposition process consumes oxygen in the soil, making the soil temporarily in a state of hypoxia and inhibiting crop growth.

If the farmyard manure is not rotten, it will cause some damage to the plant and will burn the roots.

The harm of farm manure is that there may be some bacteria in it, which can lead to disease.

If it is sufficient, the fertilizer plant will be closed, affecting the economy and people's livelihood.

Hello, you can talk nonsense again, comrades, fertilizer is pollution-free, it is recommended to use it more, anyway, experts don't eat it,

The biggest harm of farm fertilizer is that it makes fertilizer factories make less money, which affects the tax revenue that the country receives from fertilizer factories, reduces the income of fertilizer workers and thus reduces their consumption, and affects the country's GDP

Farmhouse fertilizer is good! Crop man, seedling smile! Before application, stone powder, kill for a day, and then test, sterile disease, pH, should be neutral, diluted, applied to the roots, nitrogen, phosphorus and potassium, slightly mixed points, microelements, high-yield line ......

The biggest harm of farm fertilizer is that it can make crops grow vigorously, and the benefit of chemical fertilizer is that it can make people susceptible to various cancers.

In the past, ascariasis was severe, and its transmission route was ...... caused by human feces watering vegetables

Farm manure has been used for thousands of years, tens of thousands of years. Suddenly a modern chemical product came out one by one, and then the egg gave birth to chemical fertilizer kimchi (soilless cultivation), and the nutrient solution mixed with various chemical fertilizers was used to grow vegetables, and then what? Another noble name (green food) (organic food) is not left, and there are chicken feathers.

The biggest harm of farm manure is that it can directly burn the crops.

Chemical fertilizers are harmful, so be exempt! Nowadays, farm fertilizer is also harmful, everyone doesn't have to eat anything, wait for death!

If you don't go to dung for farming, it's better to pick up a begging stick.

This is the topic of which illiterate animal fart to make up? The scientific community has recognized that farmyard fertilizer is the best organic fertilizer. What kind of eggs are you fart?

Is the world so ridiculous now? Let such a beam-jumping clown dare to come out and reverse right and wrong? A group of illiterate people followed.

It's been thousands of years and it's too good at telling jokes to come up today.

It is not harmful to plants, on the contrary, it has certain benefits, which can make the soil better and not harder. It is easy to loosen the root system, and it can also store water and oxygen, which is convenient for the aerobic respiration of the roots, so as to better absorb nutrients. It is easy to loosen the root system, and it can also store water and oxygen, which is convenient for the aerobic respiration of the roots, so as to better absorb nutrients.

The advantages are: the nutrients are more comprehensive, and the fertilizer effect is milder and longer-lasting.

The disadvantages are: (1) the composition is complex, the fertilizer efficiency changes greatly, and it is not easy to grasp the accurate fertilizer amount; (2) slow decomposition and late fertilizer efficiency; (3) Large dosage. (4) High oxygen consumption.

Farmyard manure is an environmentally friendly organic fertilizer. Most of the farm manure belongs to organic fertilizers, such as human manure, livestock manure, kitchen waste and manure, green manure, compost and manure. But it is not the same as organic fertilizer, which is defined by the standard for organic fertilizer.

Standard definition of organic fertilizer (NY 525-2002): carbon-containing materials that are mainly applied to plants and/or animals, and are applied to the soil to provide plant nutrition as their main function. <>

Organic fertilizer is processed from biological matter, animal and plant waste, and plant residues, eliminating toxic and harmful substances, and is rich in a large number of beneficial substances, including: a variety of organic acids, peptides, and rich nutrients including nitrogen, phosphorus, and potassium. The application of organic fertilizer can not only provide comprehensive nutrition for crops, but also has long fertilizer effect, can increase and renew soil organic matter, promote microbial reproduction, improve the physical and chemical properties and biological activity of soil, and is the main nutrient for green food production.

However, although there are many types of components in organic fertilizer, the content of each nutrient is relatively small, and there are many pathogens. It needs to be stored and rotted to kill germs, and it is better to use it with chemical fertilizers.

Now, with the continuous development of science and technology, through the artificial screening, separation, domestication and cultivation technology of beneficial bacteria, the beneficial bacteria can be integrated into the harmless treatment of organic fertilizer, which can produce a variety of different varieties of biological organic fertilizer, which can improve soil quality, reduce environmental pollution, increase fertilizer and efficiency.

Farmhouse manure is not fertilizer Organic fertilizer is the organic fertilizer that is completely decomposed and meets the NY525-2012 standard.

I think that farmhouse fertilizer is an environmentally friendly fertilizer to grow crops, and farming fertilizers are needed to grow crops, and the crops grown are green and very strong.

Farm fertilizer refers to human urine manure and the manure of cattle, sheep, pigs, dogs, chickens, ducks, geese and other livestock and poultry as fertilizer, which is an environmentally friendly organic fertilizer!

Fermented farmhouse manure is an environmentally friendly fertilizer. If there is no fermentation, the taste is particularly strong and cannot be close.

For farmers, engaged in agricultural production and planting can not be separated from fertilizer, modern mainly to chemical fertilizer and farm fertilizer two kinds, fertilizer is a kind of fast-acting fertilizer rolling simple, fast, but the harm to the soil is relatively large, and although the effect of farm fertilizer is a little slower, but can effectively improve the condition of the soil can reduce the fertilizer expenditure of farmers, save costs, very popular with the friends of the agricultural high pants.

It is a natural and environmentally friendly fertilizer, but it has to be composted and fermented!

Mixing chemical fertilizers with farm fertilizers can do a lot of good things.

First, it can comprehensively improve the nutrients required for crop growth. Chemical fertilizer is characterized by high nutrient content, fast fertilizer efficiency and short duration, and relatively single nutrients; Agricultural organic fertilizers are mostly complete fertilizers, but they have low nutrient content, slow fertilizer efficiency and long duration. Therefore, the mixed application of chemical fertilizers with agricultural organic fertilizers can complement each other's strengths.

Second, it can reduce nutrient fixation and improve fertilizer efficiency. When chemical fertilizers are applied to the soil, some nutrients are absorbed or fixed by the soil, reducing the availability of nutrients. When mixed with farm fertilizer, the contact surface between the fertilizer and the soil can be reduced, thus reducing the chance of being fixed by the soil.

Third, it can preserve storage, reduce loss, and improve the absorption conditions of crops for nutrients. Chemical fertilizers have high solubility and high osmotic pressure on the soil after application, which affects the absorption of nutrients and water by crops, which increases the chance of nutrient loss. This can be avoided if mixed with farmyard fertilizer.

Fourth, it can adjust the soil acidity and alkalinity and improve the soil structure. Farm fertilizer is the raw material for microbial life, and chemical fertilizer provides inorganic nutrients for microbial growth and development, and the mixing of the two can promote the activity of microorganisms, and then promote the decomposition of organic fertilizer.

There are two main advantages of cracking: first, organic fertilizer can decompose and release carbon dioxide from the source shed, which can help the photosynthesis of plants; Second, it can prevent environmental pollution caused by ordinary chemical fertilizers and lead.

No pollution, environmental protection. The land is not easy to compact.

It does not pollute the environment, and the things that are grown are eaten and pulled well.