Water scarcity and low soil fertility are the main factors limiting crop production in semi-arid regions. One the other hand, excessive water resource input and large amount of fertilizer application not only lead to low water productivity and nitrogen use efficiency, but also produce a series of environmental problems and affect the structure and function of farmland ecosystem.
Click here for original story, New water-fertilizer strategy to achieve high yield of maize and resource use efficiency simultaneously
Source: Phys.org