China News Service, Urumqi, December 26 (Reporter Zhu Jingchao) At present, all sea rice in Xinjiang has been harvested and put into warehouses. The measured yield per mu exceeds 500 kilograms. Since the trial planting in 2018, it has achieved high yields for many years in a row.

　　At present, there are about 30,000 mu of seawater rice planted in the saline-alkali land in Xinjiang. By planting seawater rice, not only the saline-alkali land has been transformed into fertile land, but local farmers have also brought considerable benefits.

What is sea rice?

　　Seawater rice is not rice that grows in seawater, nor is it directly irrigated with seawater.

Seawater rice is a common name for salt-alkali-tolerant rice, which refers to a special type of rice variety that has a certain ability to tolerate salt-alkali and can be grown and produced in coastal tidal flats and inland saline-alkali lands.

　　Rice is an important food crop in China. At the same time, the process of rice planting can improve the soil to a certain extent. However, rice is moderately sensitive to salinity and alkali. Under saline-alkali stress, its growth will be inhibited, or even harvested, which will affect rice yield.

Therefore, improving the saline-alkali tolerance of rice has become an important factor in the development and utilization of saline-alkali land.

The Yuepu Lake seawater rice planting base in Kashgar, Xinjiang has a bumper harvest.

Data map courtesy of Yuepu Hurong Media Center

The national sea rice is distributed in more than 10 provinces with an area of ​​600,000 mu

　　According to estimates by experts, China has nearly 1.5 billion mu of saline-alkali land, mainly distributed in the northwest, northeast, north China and coastal areas. Among them, nearly one-tenth of the saline-alkali land, or nearly 150 million mu, has potential for development and utilization.

　　According to public information, as of the end of 2021, China's sea rice planting area will reach 600,000 mu, distributed in more than 10 provinces and autonomous regions including Heilongjiang, Shandong, Jiangsu, Xinjiang, Inner Mongolia, and Zhejiang.

In 2022, the sea rice planting area is expected to exceed 1 million mu.

　　According to expert analysis, as national and local governments pay more attention to food production and comprehensive utilization of saline-alkali land, more and more local governments and scientific research institutes have increased their attention and investment in this area. reason for the expansion.

Harvesting site at the Yuepu Lake Seawater Rice Planting Base in Kashgar, Xinjiang.

Data map courtesy of Yuepu Hurong Media Center

Xinjiang's saline-alkali land has a high salt content in Yuepu Lake, the first successful trial planting in the country

　　Zhang Guodong, executive deputy director of the Qingdao Seawater Rice Research and Development Center of the academician Yuan Longping’s team, said that the distribution of saline-alkali land in China is mainly concentrated in the north and coastal areas, and the formation factors of saline-alkali land are also different. Northeast China is dominated by alkaline land, and Xinjiang is dominated by salt. , Xinjiang has a vast area, a large amount of evaporation, and a high salt content in saline-alkali land, which is more than ten to twenty per thousand. The lack of fresh water resources around the saline-alkali land is also the main factor affecting the promotion of seawater rice in Xinjiang.

　　In 2018, Qingdao Seawater Rice Research and Development Center and Qingdao Jiutian Smart Agriculture Group, with the support of local governments, established 6 farms in Nanniwan, Yan'an, Shaanxi, Yuepu Lake, Xinjiang, Daqing, Heilongjiang, Dongying Army Horse Farm, Shandong, Qingdao, Shandong and Wenzhou, Zhejiang. The area of ​​each base ranges from dozens to hundreds of hectares. This is the first simultaneous planting experiment conducted by the academician Yuan Longping's team in China.

　　Why did you choose Yuepu Lake as the first trial planting in Xinjiang?

Wang Qi, a technician from the Xinjiang Aid Headquarters in Tai'an City, Shandong Province, who participated in the project throughout the entire process, told reporters that Yuepuhu County is adjacent to the Taklamakan Desert and is the lowest-lying area in Kashgar. 17‰, which is very typical.

　　Wang Qi said that in 2018, 300 mu of seawater rice was planted in Are Gaimai Village, Bayiawati Township, Yuepu Lake County, and the yield per mu was 300 kg. The temperature has been reduced from 17‰ to 2‰. It has also achieved two crops of rice and wheat within one year, and the experiment of transforming saline-alkali land into fertile land has been successful.

　　Encouraged by this result, in 2020, the Xinjiang Base of Qingdao Seawater Rice Research and Development Center will establish a demonstration project in Akto County, Kizilsu Kirgiz Autonomous Prefecture, to help local people increase their income.

The Yuepu Lake seawater rice planting base in Kashgar, Xinjiang has an yield of more than 540 kilograms per mu.

Data map courtesy of Yuepu Hurong Media Center

The "four-dimensional improvement method" is suitable for Xinjiang's soil characteristics and low cost

　　Zhang Lishan, head of the Xinjiang base of the Qingdao Sea Rice Research and Development Center, said that currently, the severe saline-alkali land in Xinjiang has been transformed into 2,000 mu of fertile land, mainly using the "four-dimensional improvement method."

　　The saline-alkali land in Xinjiang is mostly distributed around the Taklamakan Desert. The water quality in the surrounding areas has high salinity and lack of available fresh water resources. It will consume a lot of fresh water resources, so we have to find ways to improve the saline-alkali soil.

　　Zhang Lishan said that the four-dimensional soil improvement method proposed by Qingdao Seawater Rice Research and Development Center is very suitable for promotion and use in Xinjiang, and the cost is low.

It is a technical supporting method that integrates the four major agricultural production elements of the element Internet of Things system, soil directional conditioner, plant growth regulator and saline-alkali-tolerant rice.

　　The four-dimensional improvement method basically includes rice varieties with certain stress resistance, such as cold-resistant rice, drought-tolerant rice, and salt-alkali-tolerant rice. This is a foundation, and soil conditioners and plant auxins are constructed. Physical and chemical methods are used to solve the ratio of some trace elements in the poor soil, making it more suitable for the growth of plants.

　　The element Internet of Things system is the core part of the four-dimensional soil improvement method.

This system consists of two parts.

Part of it is based on the nature of the soil, burying pipes at a depth of 1 to 1.5 meters underground to collect interstitial water in the soil, so that the water for irrigation of rice can be recycled, and at the same time block the high-salt groundwater from reverse osmosis to the cultivation layer and damage crops.

The second part is to use advanced Internet of Things technology to collect and transmit information such as crop growth environment, growth situation, pests and diseases to the data center in real time, and artificial intelligence and agricultural experts will propose solutions. The biggest advantage of this system is to save fresh water resources. , and at the same time carry out scientific and precise control and application of fertilizers and pesticides.

The Yuepu Lake Seawater Rice Planting Base in Kashgar, Xinjiang has transformed the heavily saline-alkali land into fertile land, realizing double cropping of rice and wheat, bringing huge benefits to farmers.

Data map photo by Zhu Jingchao

Sea rice planting area in Xinjiang is gradually expanding to help rural revitalization

　　According to the reporter's understanding, at present, the Xinjiang base of Qingdao Sea Rice Research and Development Center and the Xinjiang Branch of Zhongnong Sea Rice (Shenzhen) Biotechnology Technology Co., Ltd. plant about 30,000 mu of sea rice, because in some areas with low salinity, farmers can The sea rice seeds are used for planting by itself, and the yield is not low, which has the conditions to expand the scale of planting.

　　Zhang Lishan said that in addition to transforming 2,000 mu of severely saline-alkali land and achieving demonstration effects, the Xinjiang Base of Qingdao Seawater Rice Research and Development Center is located in the Kashgar area around the Taklimakan Desert, Kizilsu Kirgiz Autonomous Prefecture, and Bayingoleng Mongolian Autonomous Prefecture through cooperation with farmers More than 10,000 mu of seawater rice has been planted, achieving higher yields and farmers gaining better returns.

The planted area is expected to further expand in 2023.

　　He said that saline-alkali soil contains a variety of trace elements, rich in selenium, and seawater rice has high nutritional value, which is well recognized by the market.

As the planting area continues to increase, seawater rice planting will become a booster for rural revitalization.

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