| abstract |
The invention discloses a red soil improving agent which comprises the following components by weight percent: 30%-40% of red mud, 15%-25% of sepiolite, 20%-30% of straw biomass char, 10%-15% of calcium hydroxide and 10%-15% of magnesium oxide. Full test results prove that, by adopting the red soil improving agent and a preparation method thereof provided by the invention, the problems of poor crop growth and low yield caused by soil acidification in red soil areas in China, serious shortage of supply of calcium, magnesium and other medium elements and the like can be effectively solved, thereby having abroad application prospects in the red soil areas in the South. |