Research Progress in Crop Root Biology and Nitrogen Uptake and Use, with Emphasis on Cereal Crops

The biological characteristics of crop roots are closely related to the efficient utilization nitrogen and have become a research hotspot in agricultural cultivation breeding recent years. root system microbiota play crucial role both basic plastic growth development plants response external environmental changes. Nitrogen is an indispensable nutrient element for growth, key achieving high yield quality crops establishing environmentally friendly production. absorbed utilized by rice mainly enters aboveground part plant through from within soil. This process explored perspective biology (root morphology, physiological biochemical characteristics, regulation, rhizosphere microorganisms, their symbiotic systems), which line with directions “less investment, increased production, protection, sustainable development” China. Based on status this field at present, article interaction mechanism between absorption utilization, looks forward future biology. study provides theoretical basis reducing fertilizer application, optimizing nitrogen-efficient management techniques, selecting varieties.