Zijun Zhou

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In response to addressing potassium (K) deficiency in soil and decreasing agricultural production costs, the potential of K-bearing phyllosilicate minerals that can be directly used as an alternative K source has been investigated using sodium tetraphenylboron (NaTPB) extraction and an intensive cropping experiment. The results showed that the critical(More)
A new grading system for plant-available potassium (K) in soils based on K release rate from soils and plant growth indices was established. In the study, fourteen different agricultural soils from the southern subtropical to the northern temperate zones in China were analyzed by both chemical extraction methods and exhaustive cropping techniques. Based on(More)
Controlled-release fertilizers (CRF) use a controlled-release technology to enhance the nutrient use efficiency of crops. Many factors affect the release of nutrients from the waterborne polymer-coated CRF, but the effects of thermal post-treatments remain unclear. In this study, a waterborne polyacrylate-coated CRF was post-treated at different(More)
The purpose of this study was to describe the prescription of antibacterial agents for acute upper respiratory tract infections (URIs) in Beijing. A total of 8,588,699 outpatient cases in tertiary hospitals with acute upper respiratory tract infections (URIs) were selected from the Beijing Medical Claim Data for Employees (BMCDE) from Oct 2010 to Sep 2012.(More)
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