Beer and poop cocktails may sound exaggerated, but they are a godsend for farmers.
The use of chemicals to remove harmful pests from agricultural land is known to harm the environment and the people who maintain it.
However, in a new study, by-products from beer production and oil extraction from seeds are whipped with fresh cow dung, Make strange but effective pesticidesAccording to researchers at the Niker Basque Agricultural Research and Development Institute in Spain.
This cocktail increased lettuce yield by about 15% over the year while treating parasites that attack plant roots, promoting a sustainable food system and reducing harmful agricultural waste. ..
Is Research Was published in the magazine Frontiers in Sustainable Food Systems on Monday.
“There are still many questions to answer in order to better understand what happens in the soil during and after these biodisinfection treatments,” said the lead author and PhD student of the study. Maite Gandariasbeitia said in a statement. “This helps to really clarify what features other potential organic treatments should look for in order to effectively address soil parasite populations.”
To cleanse the soil of harmful parasites, researchers treated greenhouse-grown lettuce crops with used beer grains called bagasse, by-products from harvested rapeseed called rapeseed cake, and fresh cow dung. ..
The treated soil was naturally infested with nematodes, a soil parasite that cultivates the root tissue of plants to lay eggs and cause knot-like swelling, so 45% at the final harvest before the study began. Caused more yield loss.
“This damage adversely affects root development, which means that crops can’t absorb nutrients efficiently, plants grow slower, and ultimately farmers’ yields decrease,” Gandarias Bay said. Mr. Tia said.
After the first crop treatment, the team learned that the swollen nodes of the roots of the plant were significantly reduced. And a year later, the yield increased by 15%, the population of beneficial microorganisms in the soil increased, and “proved by a significantly higher soil respiration rate,” the researchers said.
Previous studies have also shown that cocktails work because they are high in nutrients and promote the activity of small organisms that are useful in breaking down organic matter such as feces and killing parasites.
This treatment also helps reduce agricultural pollution released into waterways, air, and even food, which can contain chemical pesticides that are used to keep harmful organisms away.
Insecticide It is regularly detected in 90% of our streams and rivers.And, according to the Council for the Conservation of Natural Resources, Americans now contain an average of 43 pesticides in their blood. These chemicals cause illness in humans and help to serve food on dishes. And can kill pollen carriers such as native bees.