About this Research Topic
With the growing human population comes an increased demand for food and fiber. However, the increasing threat of climate change is putting extra pressure on agroecosystems to achieve this goal. The intensification of agroecosystems to produce more food and fiber brings with it an increasing demand for freshwater, a resource that is lacking in many regions of the world. Effective irrigation is therefore crucial to increase crop growth and productivity. However, an adequate supply of high-quality water is often lacking due to increased human demand. With increasing concerns over the utilization of scarce water resources, there has been a renewed interest in improving water use efficiency in agricultural systems.
Water and fertilizer application are two of the main yield improvement approaches in crop production, and these are particularly important in arid regions. Crop modeling studies have shown that optimal water-nutrient application modes are beneficial for decreasing inputs but are not conducive to obtaining the highest yields by utilization of the crop compensation and self-regulation capacities. In the future, higher energy costs and scarce nutrient resources will result in rising fertilizer prices and environmental pollution. To counteract these issues, efficient water, and nutrient management strategies are needed to achieve optimal crop yield under arid conditions. This Research Topic aims at focusing on the impacts of irrigation and fertilization in terms of the changes in soil water levels, nutrient content on crop production and quality. Improved water management strategies to increase productivity, improve quality, and improve the resilience of crops will be documented.
The Research Topic will include studies on the fertigation on crop productivity, and the adaptation mechanism that enable plants to survive extreme water or nutrient deficit events. Examples of topics that will be considered include:
(i) New methodologies and technologies which promote water (and related nutrient use efficiency) in crop production
(ii) Mechanism of crop compensation and self-regulation capacities underwater or nutrient deficit
(iii) Improved coupling of water-fertilizer addition for enhancing crop productivity
(iv) Promotion of water and fertilizer use efficiency by optimizing root and shoot functional traits
(v) New modeling approaches and decision support tools to promote water use efficiency in farming systems
(vi) Design of new approaches to water footprinting in agriculture
(vii) Transboundary and policy issues facing water use in agriculture
Keywords: Crop Production, Water Supply, Agricultural Systems, Fertilization, Fertigation
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