Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Robert G. Downer"'
Publikováno v:
Weed Technology. 20:1035-1039
Field trials were conducted to evaluate weed control and soybean tolerance with co-application of pyraflufen-ethyl and glyphosate. Pyraflufen-ethyl applied at 11, 23, or 45 g ai/ha in combination with glyphosate did not affect control of barnyardgras
Publikováno v:
Weed Technology. 19:719-723
Coapplication of herbicides and insecticides affords growers an opportunity to control multiple pests with one application, given that efficacy is not compromised. Glufosinate was applied at 470 g ai/ha both alone and in combination with the insectic
Publikováno v:
Weed Technology. 19:762-767
Coapplication of herbicides and insecticides affords growers an opportunity to control multiple pests with one application given that efficacy is not compromised. Trifloxysulfuron was applied at 5.3 g ai/ha both alone and in combination with the inse
Autor:
Donnie K. Miller, B. Rogers Leonard, Joseph H. Pankey, Robert G. Downer, Richard W. Costello, James L. Griffin
Publikováno v:
Weed Technology. 18:698-703
Field studies were conducted to evaluate weed control with combinations of glyphosate at 750 g ae/ha and the insecticides acephate (370 g ai/ha), dicrotophos (370 g ai/ha), dimethoate (220 g ai/ha), fipronil (56 g ai/ha), imidacloprid (53 g ai/ha), l
Publikováno v:
Weed Science. 52:178-182
Field research was conducted in 1999 and 2000 to determine the effect of reduced glyphosate rates on growth and yield of nonglyphosate-resistant cotton. Rates of 9, 18, 35, 70, 140, and 280 g ha−1, representing 0.008, 0.016, 0.031 0.063, 0.125, and
Autor:
E. Barry Moser, Robert G. Downer
Publikováno v:
Communications in Statistics - Simulation and Computation. 33:363-375
Few guidelines exist for the application of geostatistical methods to spatial counts and the prediction to unsampled areas is an important aspect of experimental field research. The prediction performances of kriging and a correlated errors Poisson m
Publikováno v:
Weed Science. 51:781-785
Field research was conducted for 2 yr to determine the effect of reduced rates of glufosinate on growth and yield of non–glufosinate-resistant cotton. Rates of 3.4, 6.7, 13, 26.5, 52.5, and 105 g ha−1, representing 0.008, 0.016, 0.031, 0.063, 0.1
Publikováno v:
Weed Science. 51:786-791
Field research was conducted for 2 yr to determine the effects of reduced rates of bromoxynil on growth and yield of non–bromoxynil-resistant cotton. Rates of 4.5, 9, 17, 35, 70, and 140 g ha−1, representing 0.008, 0.016, 0.031, 0.063, 0.125, and
Publikováno v:
Agronomy Journal. 94:1305-1316
To maximize profitability, cotton (Gossypium hirsutum L.) producers must attempt to control the quality of the crop while maximizing yield. The objective of this research was to measure the intrinsic variability present in cotton fiber yield and qual
Autor:
Robert G. Downer
Publikováno v:
Journal of Statistical Computation and Simulation. 72:747-757
Research in many disciplines involves data with spatially correlated observations. Spatial dependence violates the independent errors assumption required for techniques such as the standard one-way analysis of variance for a completely randomized des