Method of manufacture and method of use of biochar capable of promoting growth of seedlings in gleyed rice field

The invention particularly relates to a method of manufacture and a method of use of biochar capable of promoting growth of seedlings in a gleyed rice field.The method of manufacture comprises the steps: 1, chopping and air drying rice husk; 2, subjecting the rice husk treated in step 1 to high-temperature anaerobic combustion at 500-550 DEG C to obtain rice hull biochar.Compared with the prior art, the method of manufacture provided herein can significantly improve a growth environment for roots of seedlings so that the growth and development of seedlings is effectively facilitated; moreover, the manufactured biochar has contents of calcium, magnesium, potassium and sodium ions that are respectively 12.35 cmol/kg, 12.86 cmol/kg, 40.34 cmol/kg and 1.83 cmol/kg, and it is possible to well replenish trace elements in soil and improve oxidation-reduction condition of the soil. 本发明具体涉及种促进潜育化稻田秧苗生长的生物炭制造方法及其使用方法，其制造方法包括：步骤，将谷壳切碎后风干；步骤二，将步骤处理好的谷壳在500～550℃下进行高温无氧烧制，制得谷壳生物炭。相较于现有技术，本发明提供的促进潜育化稻田秧苗生长的生物炭制造方法，能够显著改善秧苗根