Special fertilizer for selenium-rich rice cultivation, and preparation method thereof

Abstract

The invention discloses a special fertilizer for selenium-rich rice cultivation, and a preparation method thereof. The special fertilizer for selenium-rich rice cultivation is applied in the filling period of rice according to an application amount of 35-40 kg / 666.7 m<2>; and the special fertilizer for selenium-rich rice cultivation comprises, by weight, 21-30 parts of selenium-rich red dates, 15-25 parts of selenium-rich fish meal, 5-10 parts of glucolactone, 10-16 parts of urea, 5-15 parts of selenium-rich yeast powder, 10-15 parts of L-selenium-methyl selenocysteine, 6-15 parts of boric acid, 7-15 parts of zinc sulfate, 8-15 parts of humic acid, 6-15 parts of diammonium phosphate and 10-22 parts of dried small shrimp powder. The special fertilizer for selenium-rich rice cultivation canbe applied in the filling period of rice, can increase the selenium content of the rice by 25% or above, also can improve the yield, taste and nutritional values of the rice, and has good applicationand promotion values.

Description

technical field [0001] The invention relates to the technical field of rice cultivation, in particular to a special fertilizer rich in selenium for rice cultivation and a preparation method thereof. Background technique [0002] Selenium is an indispensable trace element in the human body. Selenium and vitamin E are both anti-peroxidation substances (peroxides are harmful to the human body). It has also been proved that it has a therapeutic effect on children who are malnourished due to lack of protein. Carcinogens are resistant. The main manifestations of selenium deficiency in the human body are hair loss and nail loss. Some patients have skin symptoms, and a small number of patients may have neurological symptoms and tooth damage. People with mild or moderate selenium deficiency have no obvious signs or symptoms. Possible diseases caused by selenium deficiency in human body: energy deficiency malnutrition, hemolytic anemia, Keshan disease, Kashin-Beck disease, hypertens...

AI Technical Summary

Problems solved by technology

However, most of the existing selenium-enriched rice is sprayed with selenium-containing inorganic salts on the rice leaves at the early stage of rice flowering and flowering. This method of page spraying makes it difficult for all selenium to be absorbed, and the selenium-enriched effect cannot be achieved.