China News Service, Songyuan, October 13 (Reporter Guo Jia) "The saline-alkali land improved by covering with sand, planting 'Dongsheng 118' soybean yielded 211.08 kg per mu."
The reporter recently accompanied agricultural experts from the Northeast Institute of Geography and Agroecology of the Chinese Academy of Sciences to the Changling Demonstration Base in the Da'an Demonstration Zone for production testing.
Once the results of the production test were announced, there was warm applause at the scene.
This means that high yields can also be achieved in poor saline-alkali land.
The Songnen Plain is a veritable "granary" in China, but in addition to the fertile black land, there are nearly 4 million hectares of barren saline-alkali land.
Now, they are seen as one of the regions with the greatest potential for increasing grain production in China.
The "Black Soil Granary" scientific and technological battle is carried out by the Chinese Academy of Sciences in conjunction with the three northeastern provinces and Inner Mongolia. It is an important measure to implement the national strategy of "holding grain in the ground and storing grain in technology". Efficient improvement and comprehensive utilization.
The production testing expert team tested the yield of "Dongsheng 118" soybean variety in Changling Demonstration Base.
Photo by Guo Jia
The production testing expert group believes that the soybean variety "Dongsheng 118" can be widely used in soda saline-alkali areas such as Da'an and Songyuan.
The successful breeding of this variety provides an excellent variety for the marginal land to increase the soybean planting area.
"Dongsheng 118" soybean variety was selected and bred by Feng Xianzhong's team of Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences using molecular design technology. The "Zhongke Douxin" series of soybean liquid-phase breeding chips developed by Feng Xianzhong of the Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, makes the breeding efficiency of soybean progeny more efficient than traditional breeding. It has increased by more than 80%, breaking the technological monopoly of foreign countries in this area.
The saline-alkali land where high-yield soybeans grow uses the sand-covering technology, which is mainly used in dry fields and complements the "treatment of alkali with rice" in paddy fields.
The Chinese Academy of Sciences has observed for 11 consecutive years that the effect of covering 20 cm to 30 cm of sandy soil is the best, supplemented by protective tillage technology, which can effectively solve the phenomenon of alkali return.
Huang Yingxin, a researcher at the Northeast Institute of Geography and Agroecology of the Chinese Academy of Sciences, introduced that there are more than 1 million hectares of sandy land around the saline-alkali land in the Songnen Plain, which provides rich resources for sand-covering and improving the saline-alkali land.
The original vegetation type can also be restored after the sandy soil is removed, without reducing the area of woodland or grassland.
Huang Yingxin believes that if the saline-alkali land in the Songnen Plain can be reasonably improved and crops such as corn and soybeans can be planted, it has the potential to increase the output of grain by 20 billion to 40 billion catties, and can also alleviate the dilemma of China's high dependence on imports of soybeans.
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