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Control of perennial broadleaf weeds in Missouri field crops (1993)
(University of Missouri--Columbia. Extension Division, 1993)
Perennials are the most difficult weeds to control in field crops. Perennial plants survive, by definition, for more than two years and usually live for many years. Most perennial plants reproduce by seeds and by structures ...
Soil surface-seal measurement using high-resolution x-ray computed tomography (HRCT)
(University of Missouri--Columbia, 2006)
Rainfall on bare soil breaks soil aggregates, detaching particles, plugging pores and decreasing porosity in the top few mm of soil. This reduces hydraulic conductivity and increases runoff through a process known as surface ...