Jianchu Shi

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As the critical information to study flow transport in soil–plant systems, root distributions and root-water-uptake (RWU) patterns have been studied extensively. However, most root distribution data in the past were collected under surface irrigation. Less research has been conducted to characterize root distributions under sub-irrigation. The objectives of(More)
Michaelis-Menten (MM) kinetics and a physical–mathematical (PM) model are the popular approaches to describe root N uptake (RNU). This study aimed to examine RNU and compare the two model approaches. A hydroponic experiment (Exp.1) investigated the effects of root length, root N mass, transpiration, plant age and solution N concentration on RNU of wheat(More)
The knowledge of soil moisture spatial and temporal variability improves the understanding of the scale issue for hydrological and climatic studies. In the paper, daily soil moisture samplings at 144 locations were collected in the spring wheat region, and the classical statistics, geostatistics and time stability analysis were used together to discuss the(More)
BACKGROUND AND AIMS Water-saving ground cover rice production systems (GCRPS) are gaining popularity in many parts of the world. We aimed to describe the characteristics of root growth, morphology, distribution, and water uptake for a GCRPS. METHODS A traditional paddy rice production system (TPRPS) was compared with GCRPS in greenhouse and field(More)
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