System Of Iron Salt Water Phase Diagram And Its Applications

This dissertation firstly researched FeSO4-ZnSO4-H2O、 FeSO4-MnSO4-H2O、FeSO4-CuSO4-H2O water system by isothermal dissolution equilibrium, use Zn2+、Fe2+、Mn2+and Cu2+concentration axes in Cartesian coordinates made out of0℃,10℃and25℃,the different pH FeSO4-ZnSO4-H2O、FeSO4-MnSO4-H2O and FeSO4-CuSO4-H2O system phase diagramAccording to the phase diagram, the Fe-Zn, Fe, Mn and Fe-Cu water solublefertilizer formula determines the method and its stability evaluation method. Studiesindicate that it could be prepared quality ratio Zn/Fe=1.86~4.46, Cu/Fe=0.3~0.96,Mn/Fe1.62or higher, Fe+Zn (or Fe and Mn, Fe and Cu)100g/L or higher, pH (1+250times dilution) of trace elements in the range of3.0~10.0water soluble fertilizer(agent); The Fe-Zn trace elements and Fe-Mn water soluble fertilizer have good storageperformance, and Fe-Cu water soluble fertilizer should not be stored for the winter.Based on features of the above technology and peas preparation of Fe-Zn soaked withwater soluble fertilizer experiments, it could be found that the Fe-Zn water solublefertilizer had a certain influence on pea seed germination. When seed for7days, thegermination rate, germination potential, average root length and plant height wereincreased and then decreased with increasing the concentration of water solublefertilizer, and all reached to the maximum when the Fe+Zn concentration was42mg/L.on best seed soaking conditions, control germination rate increased by20%than water,germination potential increased by20%; The average root length reflected2.63cmincrease with rising by about33percent, and the biggest growth plant height wereincreased2.29cm with rising by about28percent on average.