Results 241 to 250 of about 12,710,147 (277)

Least limiting water range as affected by soil texture and cropping system

Agricultural Water Management, 2014
Abstract In this study the least limiting water range (LLWR) and associated measurements (water content at field capacity, θ FC , wilting point, θ PWP , air filled porosity, θ AFP , and mechanical resistance, θ SMR ) were tested on two soils of clay loam (CL) and sandy loam (SL), each under long-term cultivation with either wheat ( Triticum ...
Azadeh Safadoust, Bahram Gharabaghi, A A Mahboubi   +2 more
exaly   +2 more sources

The sensitivity of shoot growth of corn to the least limiting water range of soils

Plant and Soil, 1996
The least limiting water range (LLWR), the range in soil water content within which limitations to plant growth associated with water potential, aeration and mechanical resistance to root penetration are minimal, has been proposed as an index of the structural quality of soils for crop growth.
Alvaro Pires da Silva, B D Kay
exaly   +2 more sources

Is least limiting water range a useful indicator of the impact of tillage management on maize yield?

Soil and Tillage Research, 2020
Abstract Tillage management is a key factor driving changes in soil physical properties (SPP) and crop yield around the world. However, there is a lack of knowledge about the relationships between SPP and crop yield. The dynamic of SPP during the growth period is also seldom taken into account to understand suitable soil physical environment for crop
Guopeng Liang, Aurore Degre, Shengping Li   +2 more
exaly   +3 more sources

Estimating the Least Limiting Water Range of Soils from Properties and Management

Soil Science Society of America Journal, 1997
Abstract The least limiting water range, LLWR, is the range of soil water content within which plant growth is least limited by water potential, aeration, and mechanical resistance. Little information is available on the influence of soil property or management practice on LLWR.
Alvaro Pires da Silva
exaly   +2 more sources

Soil water availability for plants as quantified by conventional available water, least limiting water range and integral water capacity

Plant and Soil, 2010
There are different approaches to define the soil available water (SAW) for plants. The objectives of this study are to evaluate the SAW values of 12 arable soils from Hamadan province (western Iran) calculated by plant available water (PAW), least limiting water range (LLWR) and integral water capacity (IWC) approaches and to explore their relations ...
Mohammad Reza Mosaddeghi
exaly   +2 more sources

Effects of compaction and cover crops on soil least limiting water range and air permeability

Soil and Tillage Research, 2014
A B S T R A C T Crop rotations that include tap-rooted species of cover crops may help alleviate the deleterious effects of soil compaction on plant growth by modifying soil physical properties. We studied the effects of compaction and cover crops on the least limiting water range (LLWR) and air permeability in the surface layers of a loamy (Exp.
Ray Weil, Guihua Chen
exaly   +2 more sources

Modelling Plant Variety Dependent Least Limiting Water Range (LLWR) [PDF]

, 2022
Drought stress is a major limiting factor for yield on a global scale (Solh and van Ginkel, 2014), with drought effects being predicted to become more severe with increasing global temperatures (IPCC, 2014). Climate change is also expected to increase the frequency and severity of floods leading to root oxygen stress (Trenberth, 2011). At the same time,
Themistocleous, George
openaire   +2 more sources

SoilFlex ‐LLWR: linking a soil compaction model with the least limiting water range concept

Soil Use and Management, 2015
Abstract Soil compaction impacts growing conditions for plants: it increases the mechanical resistance to root growth and modifies the soil pore system and consequently the supply of water and oxygen to the roots.
Keller, T., da Silva, A. P., Tormena, C. A., Giarola, N. F. B., Cavalieri, K. M. V., Stettler, M., Arvidsson, J.   +6 more
openaire   +3 more sources

Characterization of the Least Limiting Water Range of Soils

Soil Science Society of America Journal, 1994
Abstract The supplies of O 2 and water and the mechanical impedance of soil are determined by soil structural form and soil water content. The range in soil water content in which limitations for plant growth associated with matric pressure, aeration, and mechanical ...
A. P. da Silva, B. D. Kay, E. Perfect
openaire   +1 more source

An Algorithm for Calculating the Least Limiting Water Range of Soils

Agronomy Journal, 2005
The least limiting water range (LLWR) is used to estimate the optimum soil water content for plant growth based on the range of bulk density values for a given soil series under evaluation. However, the use of this methodological approach by soil scientists has been limited by the lack of a detailed description of the statistical and mathematical ...
Tairone Paiva Leao, Alvaro Pires da Silva, Ed Perfect, Cassio Antonio Tormena   +3 more
openaire   +1 more source