Method for planting iodine-contained spinach

Abstract

The invention discloses a planting method of a spinage rich in iodine, comprising the following steps: 1) a good-qualified variety is selected and the spinage seed is peeled and placed in cold water which is replaced for one time, exposed in low temperature of four to five Celsius system for sprout acceleration after being immersed and is planted after the seeds sprout; 2) fertile soil block of good temperature and water conservation is selected, carefully plowed and harrowed. Seeds with sprouts are widely distributed or planted in rows on the bed surface, seedlings are thinned after coming out at the place where seedling are too close to each other to keep the sol wet; 3) basic fertilizer is applied before spinage is planted, solid iodine organic fertilizer is applied on the soil surface at one time or liquid iodine fertilizer is periodically sprayed before spinage is picked. Owning to the adoption of the invention, not only spinage containing iodine can be nursed, but also the iodine fertilizer left in the soil and the spinage root rich in iodine can increase the iodine background content in the soil and the surroundings so as to gradually improve the environment in the area short of iodine and enhance the iodine content in food chain.

Description

technical field [0001] The invention relates to a cultivation method of iodine-enriched spinach. Background technique [0002] Iodine is an essential trace element for the human body. It plays an extremely important role in the metabolic process of the human body. More than one-third of the iodine in the human body exists in the form of the thyroid gland. Without iodine, the thyroid gland cannot synthesize thyroxine. It has biological functions such as promoting protein synthesis, regulating energy conversion, accelerating growth and development, and maintaining the structure of the central nervous system. Therefore, iodine deficiency in the human body will lead to a series of physiological disorders and abnormal biological functions, especially when babies are iodine deficient during growth and development. It can cause intellectual disability, and the overall impact on the human body due to iodine deficiency is called "iodine deficiency disease" (IDD). [0003] According ...

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Problems solved by technology

However, it has also been exposed in practice for many years that there are some obvious defects in this measure: the one is that the inorganic iodine added in table salt is volatile, and part of the iodine will be lost during storage, transportation and cooking, so the concentration of iodine added in table salt is very low. In addition, there are obvious individual differences in the absorption of inorganic iodine in salt by the human body, so that it is difficult to quantitatively evaluate its biological effectiveness; second, the iodine in the organism has the characteristics of double thresholds, that is, high iodine or low iodine Iodine will have different properties and different degrees of biological effects on the body. High iodine intake can also cause disease. People of different ages and categories (such as children, adults, pregnant women and nursing mothers) have a large daily demand for iodine. The difference is that the national salt iodization is implemented to supplement iodine for people who are really iodine deficient, but also forcibly supplement iodine for people who are not deficient in iodine, and even a small number of people who have excessive iodine intake. The incidence rate of high iodine disease has increased due to excessive intake of iodine, and it is spreading; third, in areas with severe iodine deficiency, once iodized salt is stopped, the prevalence rate of IDD will increase, which shows that adding iodine to table salt is a kind of Temporary rather than permanent and fundamental measures to improve iodine deficiency

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