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WhatsApp: +86 18037808511WEBApr 2, 2024 · The cost of fertilizer was determined using the price of urea (US596 t −1), resulting in a cost of US for a 1unit N input. The cost of soil testing and fertilization is summarized from the ...
WhatsApp: +86 18037808511WEBJan 27, 2023 · Given the mediating effect of urea on HB interaction, CG grinding in the presence of urea was also conducted to enhance the HB interaction between urea and CG minerals. Urea was added prior to grinding with 1%, 3%, and 5%, determined by the mass ratio of urea to CG. The effect of urea dosage on the size distribution of CG was .
WhatsApp: +86 18037808511WEBDec 24, 2021 · In the above equations, N and Y represent the N uptake and grain yield obtained from Ntreated plants, respectively, N0 and Y0 represent the N uptake and grain yield obtained from nonNtreated plants, respectively, and F represents the appliion rate of N. The price of fertilizers was as follows: OF— US ha −1, CU— ha −1, .
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