| abstract |
The present invention is applicable to the field of soil residual phosphorus activation, and provides a method for rapidly improving soil residual phosphorus activity by applying sulfide, including: (1) a treatment method for the test soil; (2) the input amount of the sulfide and the cultivation time; ( 3) Specific measures for soil cultivation. The method adopts the method of adding sulfide from an external source, so that the sulfide reacts with the iron oxide combined with P in the soil to release P, and by changing the inorganic phosphorus component in the soil, it promotes the insoluble phosphate Fe-P to migrate to the soil. The more effective components Sol-P and Al-P are converted to increase the content of available phosphorus in the soil to improve the activity of residual phosphorus in the soil; using commercially available inorganic sulfides as conditioning tools, it is easy to obtain and simple to operate , while supplementing soil sulfur nutrients; in addition, no fertilizer is needed in the implementation process, the cost is low, easy to accept, and has practical promotion value. |