The invention discloses a salinization removing
system for in-
greenhouse cultivation soil. The salinization removing
system comprises a cultivation medium layer, a salt isolating layer, a salt settled layer and a
greenhouse base layer. The cultivation medium layer is prepared from cultivation media, a leaching
pipe is arranged at the bottom of the cultivation medium layer, and first downward through holes are formed in the leaching
pipe; the salt isolating layer comprises a first non-
woven fabric layer; the salt settled layer comprises
coal cinder and first gravel, a salt leaching
pipe is arranged in the upper middle of the salt settled layer, and second upward through holes and third downward through holes are formed in the salt leaching pipe; the
greenhouse base layer is prepared from second gravel, a salt discharging pipe is arranged at the bottom of the greenhouse base layer, a dip angle of 0-10 degrees is formed between the salt discharging pipe and the horizontal plane,
saline water is discharged from the low end of the salt discharging pipe, and one section of a water outlet of the salt discharging pipe is sequentially filled with
zeolite,
scrap iron and
activated carbon in the
water flow direction, wherein the ratio of the
zeolite to the
scrap iron to the
activated carbon is 1:1:1. The salinization removing
system can be controlled by labor, salt of the in-
greenhouse soil can be collected, washed and removed, the salinization removing effect on the in-
greenhouse cultivation soil is achieved, and meanwhile the hardening problem of in-
greenhouse soil is solved.