NÔNG NGHIỆP VIỆT NAM — TẠP CHÍ NÔNG NGHIỆP ĐÔNG NAM Á

Turning straw into fertilizer instead of burning it: Ninh Binh's "green rice" cuts costs by 25%

On July 8, 2026, in Nghia Son village, Ninh Binh Province in northern Vietnam, a "green rice farming plus rice-straw recycling model" formed by the International Rice Research Institute (IRRI), the local company VAG Group, and the province's Department of Agriculture and Environment got underway. The pitch is to cut production costs by over 25%, lift yields by about 20%, and reduce greenhouse gases from the paddy. Low-emission rice has until now had the Mekong Delta as its lead, and there is significance in the point that the method has moved north to the Red River Delta. Japan's rice sourcing is beginning to turn its eyes toward imports against the backdrop of soaring prices, and on this site we have followed the move where low-emission green rice exceeded 70,000 tonnes of certified volume and was first shipped to Japan. This northern model can be read as a step that widens the base of that supply source.

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What got underway in Ninh Binh Province

What launched is a demonstration model billed as a "sustainable and circular green rice value chain." The setting is Nghia Son village, Ninh Binh Province. Here VAG Group set up a "green agriculture innovation center" and runs everything as a single flow, from cultivation in the paddy to post-harvest rice-straw processing.

The parties are three: IRRI, VAG Group, and the provincial Department of Agriculture and Environment. IRRI handles the cultivation technology and measurement, VAG Group brings in not just materials but a technology package and rice-straw processing equipment, and the administration bridges to the farmers. VAG Group's formal name is "Vietnam Green Agriculture Investment and Development Group," and it bills itself as a provider of integrated solutions rather than a materials vendor.

The trial is deployed not in Ninh Binh Province alone but across three northern provinces: Hung Yen, Ninh Binh, and Hai Phong. Results are already in from the 2026 spring crop, and the plan is to aim for areal expansion the following spring after the autumn crop.

Breaking down the substance of the 25% cost cut

Because this is a theme where figures tend to take on a life of their own, we grasp the breakdown of the reduction. The key is a sowing method of "mechanical drill-seeding plus simultaneous fertilizer embedding." By stopping transplanting and hand-sowing and instead dropping seed and slow-release fertilizer into the soil at the same time by machine, it reduces the input amount itself.

In IRRI's demonstration report, this method reduced nitrogen fertilizer by over 30% and seed rice by about 30%. At least 7 million dong per hectare in cost is freed up (converted at 10,000 VND = about 60 yen, about 42,000 yen), and farmers' profit is said to increase by about 21 million dong (about 126,000 yen). Labor was also reduced by 20-30%.

Item Change from the conventional
Production cost Reduction of over 25%
Nitrogen fertilizer Reduction of over 30%
Seed rice Reduction of about 30%
Labor Reduction of 20-30%
Yield Increase of about 20%
Farmer profit Increase of about 21 million dong/ha

That reducing fertilizer raises yield seems contradictory at first glance, but this is the result of optimizing the timing and placement of fertilization. The same thinking has been demonstrated in the Mekong too, and the case where the Mekong low-emission rice program recorded a 12% yield increase with 45% less seed and 30% less fertilizer aligns in direction. Behind the 20% yield increase in the north likely lies the fact that the conventional farming of the Red River Delta had large room for over-input to begin with.

"Not burning the straw" becomes the heart of the cycle

The distinctiveness of this model lies outside the paddy. It is the point of incorporating a step that, rather than burning the rice straw that comes out after harvest, remakes it into organic fertilizer.

The 4-5 tonnes of rice straw that come out of one hectare are processed by machine, mixed with livestock manure and microbes, and fermented into 3-4 tonnes of organic fertilizer. Returning this to the next crop's paddy advances soil building while curbing additional purchases of chemical fertilizer. Stop the burning and the emissions from open-field burning also disappear.

The Red River Delta has many small-scale farms, and post-harvest rice-straw burning has widely remained in the region. Turning that straw from trash to burn into fertilizer you don't have to buy is the mechanism where cost reduction and emission reduction stand at the same time. VAG Group's center handles this processing, and farmers gain a place to bring their materials.

What the site and those involved said

At the launch, the parties made statements such as the following.

  • An IRRI senior researcher reported that in the first demonstration farmer profit increased by about 21 million dong per hectare, and explained that the reductions in fertilizer and seed rice were effective
  • The deputy director of the Ninh Binh Province Department of Agriculture and Environment assessed the 2026 spring crop's yield as up about 20% and the results as good. He stressed that the four-party cooperation of the state, researchers, companies, and farmers would be the foundation for expansion
  • VAG Group's lead manager stated that the company provides not mere materials supply but a complete technology package based on the principles of implementation, measurement, evaluation, and effectiveness

That the administration put the phrase four-party cooperation front and center likely reflects that it is watching whether this method takes root as a regional mechanism rather than one company's product. That the company clearly stated it takes responsibility all the way to measurement also looks like a move conscious of the data backing that export destinations demand.

How it works for Japan's environmental sourcing

Here is the main point for Japanese sourcing managers. This northern model should be grasped, rather than as a mere production-increase case, in the sense that supply sources of low-emission rice accompanied by environmental data are increasing.

First, Diversification of sourcing risk. Vietnam's low-emission rice has until now concentrated in the Mekong Delta, and the 1-million-hectare plan also centered on the south. The move where Dong Thap's footprint-free paddies became the standard-bearer of the 1-million-ha plan is a representative example. If an equivalent method starts turning in the Red River Delta, production areas split north and south, and the risk of supply disruption from weather or disease can be held down. The north is close to the Chinese border and northern ports, and the logistics route can also be secured separately from the south.

Second, The point that evidence of emissions and resource circulation comes as a set. Among Japan's food and distribution companies, the current of demanding disclosure of environmental data in raw-material sourcing is strengthening. Rice that stops burning, turns straw into fertilizer, and even measures fertilization amount can speak of its carbon footprint and circularity in numbers. It becomes a differentiation material as not simply Vietnamese but rice whose emissions were measured, and passes more readily as the raw material for products that emphasize environmental consideration.

Third, Raising up the cost structure. If production costs drop 25%, competitiveness remains even with the cost of environmental compliance loaded onto the export price. Room arises for the Japanese side to source environmentally certified rice at a reasonable price funded by improvements in production efficiency, rather than being saddled with an overpriced product. This is a point to judge by watching actual market prices going forward.

Basic information practitioners should grasp

Item Details
Model name Green rice value chain (sustainable and circular)
Start date July 8, 2026
Entity IRRI / VAG Group / Ninh Binh Province Department of Agriculture and Environment
Demonstration site Nghia Son village, Ninh Binh Province, and three northern provinces (Hung Yen, Ninh Binh, Hai Phong)
Main technology Mechanical drill-seeding plus simultaneous fertilizer embedding; turning rice straw into organic fertilizer
Rice-straw processing 4-5 tonnes/ha to 3-4 tonnes/ha of organic fertilizer
Next development After the autumn crop, expand to the north and north-central region (Nam Dinh, Vinh Phuc, Phu Tho, Thanh Hoa)

Summary: three indicators to confirm next

The Ninh Binh green rice model is new in the point that it reconnects cost reduction and emission reduction through the resource use of rice straw. If Japanese sourcing players are to follow what comes next, there are three things to confirm. First, how far the area expansion proceeds after the autumn crop. If the model spreads areally across the small-scale farms of the Red River Delta, exportable volume gains reality. Next, in what form the measurement data on emissions and fertilization amount is disclosed externally. Only once the evidence appears does it get onto the stage of environmental sourcing. Finally, the export destination of the northern rice. Watching whether it goes to domestic consumption or export, and whether inquiries for Japan appear, will show whether this production area becomes a sourcing candidate. Now that the north's low-emission rice has started moving is precisely the time it is worth redrawing the map of the supply network.

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Author of this article

While running a food brand in Kyoto, I have worked on products that bring out the appeal of ingredients, such as dried vegetables and vegetable powders. I am now in my second year living in Vietnam, where I am also involved in coffee production on the ground, learning the whole process from cultivation to processing and flavor development. Out of a wish to deliver foods people can enjoy with peace of mind in everyday life, I value products whose production background and the faces of their makers are visible. Drawing on the appeal of both Japanese and Vietnamese food cultures, I aim to bring a little richness to daily life.

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