HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (18): 23-28.doi: 10.14088/j.cnki.issn0439-8114.2022.18.004

• Resource & Environment • Previous Articles     Next Articles

Preparation of water-soluble fertilizer containing calcium and magnesium trace elements and analysis of its seed soaking performance

HE Zi-jian1, HAN Xiao-zhao1,2, HUANG Han-da2,3, ZHANG Xu1,2, LIU Ya-hua1,2, KONG Shuai1   

  1. 1. School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China;
    2. Anhui Province Water-soluble Fertilizer Engineering Technology Research Center, Hefei 230009,China;
    3. Hefei Green Agriculture Fertilizer Co., Ltd., Hefei 230088,China
  • Received:2021-08-05 Online:2022-09-25 Published:2022-10-21

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Abstract: According to the content of trace elements in watermelon, the formula was designed and the effect of different Ca+Mg concentrations on the phase balance of Zn（NO3）2-Mn（NO3）2-H2O system at 10 ℃, pH=3, and Ca/Mg ratio 1 was studied by the isothermal dissolution equilibrium method. Based on the phase diagram, the liquid water-soluble fertilizer products containing medium amount of calcium and magnesium and meeting the agricultural industry standard of trace element water-soluble fertilizer （NY 1428—2010） were prepared. The watermelon seed soaking test showed that the seed soaking effect was better when Ca+Mg=40 g/L, Zn+Mn=126 g/L liquid water soluble fertilizer diluted 600 times.

Key words: trace element, water-soluble fertilizer, phase diagram, seed soaking, watermelon

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