High-oil soybean production and main technologies
2025-07-20 14:08:36
The Ministry of Agriculture introduced the "Soybean Industry Revitalization Plan" in an effort to boost domestic soybean production. Since 2002, the four provinces of Heilongjiang, Jilin, Liaoning, and Inner Mongolia have been designated as key regions for high-oil soybean cultivation, serving as a crucial part of the broader crop industry restructuring strategy.
One of the main reasons behind this initiative is that China's soybean output lags behind global leaders. In the late 1970s, the country shifted from being a net exporter to a major importer. Today, China consumes over 25 million tons of soybeans annually, but domestic production only meets about 10 million tons, leaving a significant gap of 15 million tons that needs to be filled through increased local production.
Additionally, soybean oil makes up more than one-third of the world’s edible oil market, making high-oil soybean development highly promising. There is also a growing demand for high-quality, non-genetically modified soybeans in China. Among the top four soybean-producing countries — the U.S., Brazil, Argentina, and China — only China continues to produce non-GM soybeans. This gives China a competitive edge, especially as some developed nations embrace genetically modified foods, creating new opportunities for Chinese soybean exports.
Currently, the average yield in the U.S. stands at 170 kg per hectare, while in Heilongjiang, China, it is around 160 kg, and in Liaoning, it is approximately 120 kg. The primary factor limiting higher yields remains the level of agricultural technology used in cultivation.
To improve productivity, several high-yield cultivation techniques have been developed:
First, selecting high-yield and high-oil soybean varieties is essential. Varieties with an oil content above 21% are ideal for local conditions. Examples include Liaodou 11, Liaodou 13, Liaodou 14, Liaodou 15, Tiefeng 31, and Dandou 10.
Second, the choice of production environment is important. Soybean fields should be located away from industrial zones and highways to prevent contamination. It is recommended to use organic materials like corn stalks or vegetable residues instead of chemical treatments. High-oil soybeans should not be planted on land where herbicides like atrazine were used in previous crops.
Third, proper fertilization is crucial. A base application of 2000 kg of organic fertilizer, along with 8-10 kg of diammonium phosphate and 10 kg of potassium sulfate, or a specialized soybean fertilizer, should be applied. A topdressing of 6-10 kg of ammonium sulfate is advised during the early flowering stage, particularly in low-fertility areas.
Fourth, sowing should occur between May 5th and 10th, with a seeding rate of 3-3.5 kg per mu. Planting density should be adjusted based on soil fertility — denser in thin soils and sparser in richer ones.
Fifth, pest and disease control is vital. Focus should be placed on preventing soybean virus diseases, underground pests, aphids, red spiders, soybean borerworms, and dodder seedlings.
Finally, harvesting should be done manually when 90% of the leaves have fallen, or mechanically once the plants have fully shed their foliage and the beans have matured.
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