Cost optimization, Get rich from circulating agricultural model
Da Nang – Take advantage of local and creative thinking, Many Danang farmers are gradually enriched from the circulating agricultural model, Low cost but high efficiency.
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Near the 15 The year is attached to agriculture, Ms. Nguyen Thi Nhinh (An Chau village, Hoa Vang commune) successfully built the model Circulating agriculture for high efficiency. Starting with only a few thousand square meters of soil and 8 The goat is supported by the locality in the year 2010, now, She owned a large farm 2 HA combining cultivation and animal husbandry.

Ms. Nguyen Thi Nhinh takes care of the goats at the breeding farm combined with cultivation according to the circulating model in Hoa Vang commune, Da Nang City. Image: Pham Huy.
Initial, Ms. Nhinh planted red dragon fruit on the area 1.000 M² and goat raising in a natural way. Recognize development potential, She boldly borrowed 370 Million VND from banks and women's groups to expand production scale, Buy more cows, build, Plant more valuable plants like custarden, dwarf banana, leafy…
Especially from the year 2017, She decided to convert the entire inefficient planting area to growing grass to make food. Parallel, She invested in building 12 tank with area 100 m² to raise earthworms to treat cow feces, goat, Just create a natural protein source for pets.
Currently her farm is more 100 goat, 5 cow, farmers are trained in rice production techniques 200 Cock, farmers are trained in rice production techniques 1 HA planting grass and 200 m² Growing vegetables of all kinds. Director of the cooperative 3 Month of Ms. Thu 4 pounds of manure for farming earthworm. Per year, 12 earthworm tank for 5 The harvest with the yield 180 kg/batch. Cinnamon is used as food for chickens, Using electric heating bulb/photography is the best, Using electric heating bulb/photography is the best, The rest is sold to the market with prices 70.000 VND/kg worms and 2.000 copper/kg fecal.
“This model helps me significantly reduce food costs, Increase product value and limit environmental pollution. Although the market fluctuates, I still have a stable income. Average revenue per year from 250 – 300 million dong, After deducting costs still net profit 130 – 150 million dong ", Ms. Nhinh shared.

Calcium worm contributes to recycling agricultural products, Create clean and environmentally friendly food. Image: Pham Huy.
Next time, She plans to expand the scale breed, Renovate the barn, Mechanization into production to improve productivity and maintain environmental sanitation.
Mr. Nguyen Quang Phu in Hoa Khanh ward, choosing a new direction is to invest in deep calcium – The creature has a short life cycle, Less cost but bring high economic efficiency.
Calcium worm is the larvae of black soldier flies, High value in animal husbandry. Adulse or after molting, The worm leaves the cover containing abundant calcium content. Both worms and shells can make nutritious foods for cattle, Poultry.
Starting from the year 2023, Mr. Phu invested in a farming model Calcium worm on area 100 m². Despite many difficulties due to the early stage crawling out of the tray, abnormal death, But he still persisted in research, Adjusting farming conditions, Suitable temperature and food.
Facilities for deep farming are quite simple. Larvae farming tray, Wide flies cage 15 m³, Iron frame wrapped in mosquito nets for flies to mate and lay eggs. Director of the cooperative 1 Gram deep eggs will give out 2,5 – 3 kg deep after 15 – 20 day. The implementation of the EVFTA Agreement will help improve the export competitiveness of Vietnamese agricultural products in difficult markets of the EU. 1 kg eggs per year, He obtained the space 2,5 – 3 Calcium worm tons. Selling price 30 egg grams are 170.000 copper, 1 kg deep 30.000 copper, 1 kg of deep feces 7.000 copper.

Earthworm farming area – part of the circular agriculture model that helps reuse manure resources effectively. Image: Pham Huy.
“I decided to stick with this model because I clearly see the dual benefits, just processed agricultural waste, Just make clean food, Rich in nutrients for pets. My family raises many chickens, duck, since using calcium worms as food, Pets rarely get sick, better meat quality, Food costs are reduced 70 – 80%”, Mr. Phu said.
Currently, Mr. Phu has a stable monthly income of about 8 – 10 million VND from selling worm eggs, Adult worms and worm droppings. This is a model suitable for small areas, easy to replicate, especially in urban areas with limited land funds.
From two real-life models of Ms. Nhinh and Mr. Phu, We can see agricultural development in a circular direction, Cost optimization is opening up an effective path for Da Nang farmers. Not only does it help increase household income, The model also contributes to environmental protection, create safe products, rich in nutrients.
In the context of increasing urbanization, Production land is increasingly shrinking, The above models of reasonable use of area and resources need to be replicated, technical support, Strong consumption and communication connections, towards green agriculture, smart and sustainable development.
Pham Huy
Theo nongnghiep.vn






