The Migration Characteristics of Effective Selenium in Soil in Situ

Abstract

One of the two trace elements needed for plant growth is selenium. The transmission of selenium in soil is critical to crop absorption and food safety. This paper studies the characteristics of effective selenium transmission in soil under drip irrigation conditions. Through the combination of field experiments and indoor simulation, the distribution and change of selenium in the soil profile were monitored. The research results show that drip irrigation significantly affects the vertical and horizontal migration of effective soil selenium, forming a specific distribution pattern, and dripping water and soil type are the main factors affecting selenium transmission. This article reveals the mechanism of effective selenium transmission in Shatian Youyuan, which provides a scientific basis for accurate drip irrigation and selenium nutrition management. It is further explained that the drip irrigation system not only transports water, but also affects the distribution of selenium in the soil. Through the combination of field experiments and indoor simulation, the researchers analyzed in detail the distribution and change of selenium in the soil profile of Shatian Youyuan. The study found that under drip irrigation conditions, the vertical and horizontal migration of effective selenium in the soil was significantly affected, forming a unique distribution pattern. In addition, the research results also revealed two main factors affecting selenium transmission in the soil: dripping water and soil type. Under the conditions of different drip water and soil types, the migration law of selenium is significantly different. These findings provide an important basis for accurate drip irrigation and selenium nutrition management, which helps to improve crop yields and food safety. In a word, by studying the transmission characteristics of effective selenium in the soil under drip irrigation conditions, this paper reveals the transmission mechanism of selenium in Shatian Youyuan, which provides scientific guidance for the rational utilization and management of selenium in China's agricultural production. This will not only help to improve crop yield and quality, but also have a positive impact on food safety and human health.