Results 271 to 280 of about 182,479 (288)
Some of the next articles are maybe not open access.
Root-length densities of various annual crops following crops with contrasting root systems
Soil and Tillage Research, 2014Abstract The aim of this study was to evaluate how soil structure and root-length densities of annual crops can be influenced by preceding crops. Three different annual field crops (spring wheat, Triticum aestivum L., winter barley, Hordeum vulgare L.
Ute Perkons +9 more
openaire +1 more source
Estimating Root Length Densities Around Transplanted Container-Grown Plants
Arboriculture & Urban Forestry, 1983A simple method is described for measuring root length densities and is applied to the study of root distributions around transplanted container-grown plants. Roots were separated from core samples using a soil elutriation system and counted using Tennant's line intersect method.
David Barnett +3 more
openaire +1 more source
Evaluation of a core sampling scheme to characterize root length density of maize
Plant and Soil, 2008Information about root distribution is important for characterization and modeling of water and nutrient uptake, biomass, and yield. Due to the heterogeneous distribution of roots in row crops, the reliability and representativeness of estimates of RL and root morphology using core sampling depend on the number of samples and their location.
Uwe Buczko +2 more
openaire +1 more source
Ying yong sheng tai xue bao = The journal of applied ecology, 2012
By using soil core method, the biomass, surface area, and length density of roots < or =2 mm and 2-5 mm in diameter in a 50-year-old Populus cathayana plantation on the northern slope of Qinling Mountains were determined during growth season. Among the roots
Hui, Yan +2 more
openaire +1 more source
By using soil core method, the biomass, surface area, and length density of roots < or =2 mm and 2-5 mm in diameter in a 50-year-old Populus cathayana plantation on the northern slope of Qinling Mountains were determined during growth season. Among the roots
Hui, Yan +2 more
openaire +1 more source
Plant and Soil, 1993
Flexible- and rigid-walled minirhizotron techniques were compared for estimating root length density of 14- to 28-day-old Pinto bean (Phaseolus vulgaris L.) and spring whet (Triticum aestivum L.) plants in soil boxes under controlled environment conditions at three soil bulk densities (1.3, 1.5 and 1.7 g cm−3).
openaire +1 more source
Flexible- and rigid-walled minirhizotron techniques were compared for estimating root length density of 14- to 28-day-old Pinto bean (Phaseolus vulgaris L.) and spring whet (Triticum aestivum L.) plants in soil boxes under controlled environment conditions at three soil bulk densities (1.3, 1.5 and 1.7 g cm−3).
openaire +1 more source
Simulating root length density dynamics of sunflower in saline soils based on machine learning
Computers and Electronics in Agriculture, 2022Lifeng Wu, Wenzhi Zeng, Guoqing Lei
exaly
Root Length Density from Core-Break Observations: Sources of Error
1991ABSTRACT Sources of error in estimating root length/volume of soil from counts of roots visible at broken faces of a soil core were analyzed. Angular distribution of root growth has a large effect on the relationship. Systematic gradients of root length density in a core should have little influence on calibrations.
openaire +1 more source
Generalization of the root length density distribution of cotton under film mulched drip irrigation
Field Crops Research, 2015Songrui Ning, Jianchu Shi, Qiang Zuo
exaly