Direct Return to the Field is Extremely Harmful

First of all, nowadays, unlike the past ecological farming, which did not use any feed additives, modern farming almost always uses feed, antibiotics, feed additives, etc., which are discharged with animal manure. If livestock manure is not treated and returned directly to the field, it is not only harmful to the soil environment, but also may threaten food safety and thus human health. It is not a joke that diseases enter through the mouth!

Similarly, excessive heavy metals in livestock manure is also a major hazard. When livestock and poultry manure containing large amounts of heavy metals are applied to farmland for a long time, it can cause heavy metal pollution of the soil. The heavy metal elements in the soil-water-plant system accumulate and transform, and will eventually pose a threat to human health through the food chain.

Second, raw manure contains worm eggs, especially chicken manure, which is most likely to breed root-knot nematodes. Studies have shown that nematode eggs in raw chicken manure hatch easily and can multiply by tens of thousands overnight, and the incidence of nematodes in soil is highest in plots with chicken manure.

Finally, the direct introduction of raw manure into the ground can easily lead to seedling burn and root burn. If you insert your hand into the soil at this time, you will feel the soil temperature is higher. This is because the fermentation of raw manure will emit a lot of heat, which will lead to root burning and seedling burning.

Therefore, it is recommended that you do not buy or use manure directly from large-scale farms just because it is cheap or convenient. The use of manure must be treated harmlessly first. For the main body of the farm, it must not be used directly, even if you have your own planting project for digestion.