The dream of directly irrigating farmland with seawater has a long history. However, due to the limitations of various technical conditions, this is always considered to be a whimsical scientific fantasy. In fact, there are indeed great technical obstacles in direct irrigation of farmland with seawater. Because every/kloc-0.000g of seawater contains 35g of salt on average, isn't it "salting" to irrigate green plants with this seawater? Obviously, it is the basic idea to cultivate "salt-tolerant" amphibious crops and realize direct irrigation of farmland with seawater.

In recent ten years, scientists have discovered and cultivated "halophytes" through a lot of research and practice. One of the characteristics of this plant is that it likes the seawater environment and can grow normally in seawater. Their roots have a "filtering" device, which can filter out the salt in seawater and make crops get fresh water nutrition. At present, scientists have found that there are 14 crops with this characteristic, and two halophytes can produce protein equivalent to wheat, which is expected to become people's new food. Salicornia bigelovii Torr, which grows on the coast of Mexico, is an amphibious halophyte. In China, scientists have found that Suaeda salsa, which grows in coastal beaches, is also a halophyte. After artificial cultivation and domestication, its buds can be served on the table, and its seeds can be made into healthy edible oil because they are rich in unsaturated fatty acids.

Another way to screen and cultivate halophytes is to use crop hybridization technology. In 1980s and 1990s, American scientists cultivated halophytes through hybridization. Directly irrigate these crops with 70% seawater to obtain well-grown cucumbers and tomatoes. Irrigation of wheat, barley and other crops with seawater with salt content of 3.8% has also achieved an ideal harvest. In recent ten years, people have cultivated many new halophytes by using gene technology. In Saudi Arabia, where there is little rain, people have successfully carried out this experiment.

Simple technical treatment of seawater can also achieve amazing results. Scientists conducted experiments and directly used magnetized seawater to irrigate crops. The experimental results were unexpected. The average harvest per hectare of beach is 65,438+05 tons of eggplant, 30 tons of sorghum or 33 tons of tomatoes. Although this technology is still in the experimental stage, its initial hope gives people reason to believe that the dream of direct irrigation of farmland with seawater will come true in the near future.

In recent ten years, based on people's long-term dream of irrigating farmland with seawater, this paper studies seawater and crosses seawater with crops to produce a new product, which is a better new product produced by physicians.

Are you satisfied? Landlord?