Download Biology and Management of Noxious Rangeland Weeds by Roger L. Sheley PDF

By Roger L. Sheley

This necessary reference for land managers and scholars of ordinary source administration offers functional, science-based info wanted for sustainable weed administration and land recovery.

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Modeling spatial and temporal patterns of soil water availability in semiarid grasslands: effects of plant spacing and lateral distribution of water uptake. Supp. Bull. Ecol. Soc. Amer. 76(3):342. A. A. Evans. 1970. Economic evaluation of scotch thistle suppression. Weed Sci. 18:583-86. A. Katz. 1985. Herpetofaunal use of four habitats on the middle Gila River drainage, Arizona, 355-58. Proc. First North American Riparian Conference, Tucson, AZ. K. 1995. Effect of light environment during soil disturbance on germination and emergence pattern of weeds.

Forage yields did not differ among treatments which controlled 90% or more leafy spurge. Marginal net return over marginal cost from herbicide treatments ranged from $35/ha to $63/ha. In North Dakota, the most cost-effective treatment was picloram plus 2,4-D (Lym and Messersmith 1990). Annual spring applications provided a net return of $284 and $109/ha in eastern and western North Dakota, respectively. The efficacy of controlling spotted knapweed with picloram was evaluated with an economic model (Griffith and Lacey 1991).

Aeroallergens of western Montana. Rocky Mountain Medical J. 79-82. B. R. Rimbey. 1988. F. H. B. ), The ecology and economic impact of poisonous plants on livestock production. Westview Press, Boulder, CO, 17-25. R. Lacey. 1991. Economic evaluation of spotted knapweed (Centaurea maculosa) control using picloram. J. Range Manage. 44:43-47. E. Arnold. 1985. ) control in pasture. Weed Sci. 33:381-85. M. Nowierski. 1989. Spotted knapweed: Allelopathy or nutrient depletion. Proc. Knapweed Symposium. Montana State University, Bozeman, MT.

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