Effect of aeroponics on root growth and nutrient absorption in tomato

doi:10.3969/j.issn.1004-1524.2017.05.12

›› 2017, Vol. 29 ›› Issue (5): 767-772.DOI: 10.3969/j.issn.1004-1524.2017.05.12

• Horticultural Science • Previous Articles Next Articles

Effect of aeroponics on root growth and nutrient absorption in tomato

ZHAO Xu¹, LIU Yanzhi², WANG Jing³, LI Tianlai⁴, SUN Zhouping⁴

1.Jining Center for Popularization of Agricultural Technique, Jining 272019, China;
2.Jining Agricultural Science Research Institute, Jining 272009, China;
3. Sishui Agricultural Technology Extension Station, Jining 273200, China;
4.College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China

Received:2016-12-22 Online:2017-05-20 Published:2017-06-06

Abstract

Abstract: Tomato plants (Lycopersicon esculentum L. cv. Liaoyuanduoli) were treated by aeroponical culture and perlite culture was used as the control. The results showed that the rhizosphere O₂ of aeroponic tomato was 14.7% higher while CO₂ concentration was only about 1/10 of the control plants. Aeroponics significantly promoted the root growth and nutrient absorption of tomato. The root length, root volume, root activity and nitrate reductase activity of tomato under aeroponical culture on 60 days after transplanting was increased by 66.0%, 63.0%, 34.9% and 30.5% than that of the control plants. The content of N, P, K, Ca and Mg in roots and fruits of aeroponic plants was significantly higher than that of the control plants, which were 1.8, 1.5, 1.4, 1.4, and 1.2 times of the control plants, respectively. The results indicated that the aeroponic culture significantly improved rhizosphere gas environment through increasing O₂ content and reducing CO₂ content. Aeroponic culture promoted the root growth and nutrient absorption at the same time, and then enhanced plant nutrition transferring to the ground part.

Key words: tomato, aeroponics, root growth, nutrition absorption

CLC Number:

S641.2

ZHAO Xu, LIU Yanzhi, WANG Jing, LI Tianlai, SUN Zhouping. Effect of aeroponics on root growth and nutrient absorption in tomato[J]. , 2017, 29(5): 767-772.

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Effect of aeroponics on root growth and nutrient absorption in tomato

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