Device for stimulating nutrient absorption of plant root system and using method of device

• Main Authors: LAI YONGLIN, JIA ZHIHONG, MO JINYU, SHI WEIMING, SHEN HONG, YANG XUJIAN
• Format: Patent
• Language: Chinese; English
• Published: 07.09.2011
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a device for stimulating nutrient absorption of a plant root system and a using method of the device. The device comprises a sampling pipe, a liquid-supplying system and a low-pressure system, wherein the sampling pipe is respectively connected with the liquid-supplying system and the low-pressure system; the sampling pipe comprises a sampling pipe body and an anion/cation exchanging membrane; a plurality of holes are arranged in the middle of the outer wall of the sampling pipe body; and a plurality of grooves are arranged between the holes on the outer wall of the sampling pipe body. The method for using the device comprises the steps of: burying the sampling pipe which is soaked in a sodium bicarbonate (NaHCO3) solution in the soil for 2 hours; taking the sampling pipe out and eluting the sampling pipe with hydrochloric acid (HCl) solution; and detecting the content of anionic and cationic nutrients in the eluent to evaluate the nutrients, which can be absorbed by the plant root sys