Germination and emergence of some native grasses in relation to litter cover and soil moisture
1942
Glendening, G.E.
1. During the summer of 1938 seeds of 10 native perennial grasses were planted in replicated plots under eight different treatments, including cultivation and covering of the surface soil with various kinds of litter on a depleted semidesert grassland range south of Tucson, Ariz. At the same time provision was made on an adjacent plot to obtain moisture samples at surface-inch, 6-inch, and 12-inch depths of bare soil, soil covered with straw litter, and soil covered with open-mesh gauze fabric. 2. Results showed that moisture content at all levels was consistently greater under the straw and gauze than on bare ground and that the length of time during which moisture content of the surface soil was above the calculated W.C. was greatest under the straw litter. 3. Germination and emergence of grass seedlings was increased from 4 to more than 20 times over that on the bare ground by the various surface-soil treatments.
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