Notes

Hypothyroid turmoil caused by metastatic thyroid gland most cancers: an autopsy circumstance statement.
39% higher than the CK treatment (i.e., no GLDA was applied). There was significant positive correlations between the pH, mass concentration of DOC, and content of DTPA-Cd, and the total dose and number of applications. The mass concentration of DOC was the main factor affecting the DTPA-Cd content. The total Cd content in the soil (after at 585 kg·hm-2 was applied four times) decreased by 3.23% compared with that of the soil before planting Pennisetum purpureum Schum. Therefore, the application of GLDA is of great significance for the remediation of Cd contaminated farmland by Pennisetum purpureum Schum, and the application method should be selected reasonably.A field experiment involving eight treatments with water management combined with leaf spraying silicon fertilizer was conducted in a paddy field heavily contaminated with Cd (2.83 mg·kg-1) to study the effects of these treatments on rice growth and Cd accumulation in different rice tissues. The results showed that① the treatments had no significant effects on rice plant height or number of tillers, but increased the biomass of brown rice by 1.7% to 25.0%. Among the eight treatments, that of water flooding during the rice maturation period plus leaf spraying silicon fertilizer (CY) resulted in the highest amount of brown rice yield. ② The treatment of conventional water management plus leaf spraying silicon fertilizer (Si) had no significant effect on the exchangeable Cd content and TCLP extractable Cd content in soil, whereas the other treatments reduced the exchangeable Cd content by 7.8%-42.6% and the TCLP extractable Cd content by 20.0%-40.8%. ③ The Si treatment could reduce the Cd content in various rice tissues, with an overall decrease of 19.0% in brown rice. The other treatments significantly reduced the Cd content in various rice tissues. The treatment of moisture during the rice maturation period plus leaf spraying silicon fertilizer (CS) resulted in the highest reduction in the Cd content in brown rice (44.0%), and was followed by the treatments of batch-type water flooding during the entire rice growth period plus leaf spraying silicon fertilizer (JX; 36.4%), and moisture during the rice pustulation period plus leaf spraying silicon fertilizer (GS; 31.8%). ④ For paddy-fields that are contaminated with Cd to medium and heavy levels, the CS and JX treatments are recommended to manage rice production in order to significantly reduce the Cd content of brown rice whilst having little effect on the rice yield.To study the effects of cotton stalk biochar on the regulation of fungal diversity, the structure and function of alkaline rice rhizosphere soil under cadmium pollution was investigated. #link# An outdoor pot experiment was conducted by adding cotton stalk biochar (0%, 1%, and 5%) to an alkaline paddy soil with a cadmium concentration of 0.1 and 8 mg·kg-1. Taking rice rhizosphere soil as the research object, Illumina HiSeq sequencing was used to analyze the effects of cotton stalk biochar and cadmium pollution on the diversity, structure, abundance, and function of fungi in an alkaline rhizosphere soil, and to explore the correlation between soil environmental factors and the fungal community under the control of cotton stalk biochar. The results showed that① the application of cotton stalk biochar significantly increased the soil pH, available nutrients, and organic matter, and reduced the content of reducible cadmium in the soil (P less then 0.05). ② The distribution of rice rhizosphere soil fungi was mainly Ascomn of cotton stalk biochar could increase the relative abundance of Alternaria. Increasing cotton stalk biochar means that soil will have more endophytes, plant pathogens, and saprophytes; while increasing cadmium pollution will reduce endophytes, plant pathogens, and saprophytes in the soil. ③ The main environmental factors affecting the diversity and structure of fungal communities are the available potassium, organic matter, and pH of the soil. The reducible cadmium content, which comprises the largest proportion of cadmium in rice soil, was significantly positively correlated to Rotifera, Aphelidiomycota, and Ascomycota (P less then 0.05), but negatively correlated to other mycophytes (P less then 0.05). The results indicate that cotton stalk biochar plays a certain role in the microecological regulation of alkaline cadmium-contaminated soil.Drip irrigation and biochar amendment could affect the nitrogen form and transformation. Creating a deep understanding of the interacting effects of drip irrigation patterns and biochar on soil mineral nitrogen, as well as the key functional genes and microbial community involved in nitrogen transformation is helpful for improving facility agricultural management, increasing water and nitrogen use efficiency, and reducing the nitrate accumulation and groundwater pollution caused by nitrogen leaching. Four treatments [surface drip irrigation (D), insert drip irrigation (ID, insert depth 15 cm), surface drip irrigation +10 t·hm-2 of biochar (DB), and insert drip irrigation +10 t·hm-2 of biochar (IDB)] were conducted in a solar greenhouse, and non-rhizospheric and rhizospheric soils of pepper plants were studied. There was this website of drip irrigation patterns and biochar on ammonium-nitrogen in the non-rhizospheric and rhizospheric soils. Compared with surface drip irrigation, insert drip irrigation decreased tostly to ammonia monooxygenase gene (K10945) expression, whereas the α-Proteobacteria, especially the rhizobia members, contributed mostly to nitrite reductase gene (K00368) expression. Biochar addition regulated the bacterial community structure that participated in K10945 gene expression in the non-rhizospheric soil and K00368 gene expression in the rhizospheric soil (P less then 0.05). Overall, biochar addition contributed more to nitrate-nitrogen and microbial mineral nitrogen-transformation processes in the agricultural soil than did the drip irrigation patterns.Ecological reclamation is the major method for the revegetation of acid mine wasteland worldwide. In this study the pH, fertility characteristics, and heavy metal content of soils from Laili Mountain mine wasteland were analyzed. The research also studied the morphological characteristics and the heavy metal in Juncus ochraceus Buchen as well as its resistance to acid, adaptability to soil fertility in abandoned land, and tolerance to heavy metal pollution (e.g., Zn and Cu) to determine its remediation potential as a pioneer plant for acid mine wasteland. Results showed that the pH of soils in the study area were acidic, ranging from 3.46 to 4.01.The contents of organic matter, total potassium, total phosphorus, and available phosphorus was poor, being 10.28-25.75 g·kg-1, 8.84-9.32 g·kg-1, 0.56-0.63 g·kg-1, and 1.82-5.72 mg·kg-1 respectively.The contents of Zn, Cu, and Fe in the soil ranged between 54.93 and 114.49 mg·kg-1, 92.53 and 127.59 mg·kg-1, and 47133.60 and 112259.63 mg·kg-1, whereby the Cu content was 1.
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