Volume 26, Issue 4 (Winiter 2023)                   jwss 2023, 26(4): 79-90 | Back to browse issues page

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Zarei F, Nouri Emamzadehei M, Ghasemi Dastgerdi A, Shahnazari A. The Pattern of Root Distribution and Water Absorption in Layered Soil. jwss 2023; 26 (4) :79-90
URL: http://jstnar.iut.ac.ir/article-1-4206-en.html
University of Shahrekord , Zarei.farzaneh12@gmail.com
Abstract:   (1095 Views)
The pattern of root distribution in layered soils is one of the significant issues in the calculations of soil water and irrigation management and planning. The objective of this study was to determine the pattern of root distribution of soybean in layered soils and its effect on water uptake. The research was conducted in a completely randomized design with 15 treatments consisting of three different textures of soil (light, heavy, and medium) in four replications. The pattern of root distribution was monitored by the sampling of columns at the end of the growth period of the soybean. It was observed that the presence of the layer with medium texture has led to better plant development and growth after comparing the treatments in terms of plant growth. In general, root length density decreased with increasing soil depth, except in cases where there were different layers of soil, and root length density takes place in the following order: root length density in layers with medium texture≥ heavy texture≥ light texture. The rate of root water uptake rate was highest in the sandy layers, intermediate in clay, and lowest in loamy texture. Also, the rate of root water uptake rate increased significantly with increasing depth regardless of treatments. It can be concluded that the pattern of root distribution and plant growth is significantly affected by soil texture and its stratification.
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Type of Study: Research | Subject: Ggeneral
Received: 2021/09/6 | Accepted: 2022/05/10 | Published: 2023/03/1

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