Decomposing straw and agricultural byproducts with microorganisms of Hungary and Vietnam
In Vietnam, rice straw is the most common form of biomass lignocellulose among agricultural byproducts and provides much nutrition for the field. According to statistics, 70% of Vietnam"s population works in agriculture and rice is the main crop, so the amount of straw after harvest is huge. The research team is chaired by Assoc. Prof. Dr. Le Mai Huong, Institute of Natural Products Chemistry, which applied the process of straw decomposition and applied the experience of handling products, collecting and upgrading raw materials. agricultural waste by microbiological technology, as well as intensive farming methods of Hungarian partners in rural Vietnam. This new method has been tested in Kim Dong district, Hung Yen province, gaining positive results and receiving enthusiastic support from farmers.
Fallow
Under the new method, after harvesting summer-autumn rice, instead of burning rice straw, the stubble will be left intact and plowing will be carried out. After that, rice straw is treated immediately in the field by microbial products to create nutrient sources for soil, intercropping crops, including potatoes on the area that have treated straw and added products Microorganisms of Vietnam and Hungary to enhance the development of tubers.
Potato grown by the new method
Potatoes grown according to the traditional method
The results showed that, in the area of experimental planting, the potatoes were bigger and yielded higher productivity than the traditional potato cultivation. It is worth noting that when applying the new method, intensive cultivation of potato crops, farmers have reduced the cost of fertilizer N, P, and K by 25% and do not need to use manure as traditional.
On the other hand, the new farming method not only gives farmers an additional harvest of agricultural products during the year, but also returns soil fertility, through the process of decomposing straw and agricultural by-products. to accumulate carbon and humus in the soil (humic acid). Besides, it is the harvested byproducts of winter crops that become nutritious for the soil to enter the next rice crop.
The initial success of the project is a premise to create a new intensification direction, change the farming practices of farmers, make use of available by-products and economic benefits and contribute to career in sustainable agricultural development, environmental protection, reduction of CO2 emissions into the air.
Tranlated by Minh Tam
