Zobrazeno 1 - 10
of 22
pro vyhledávání: '"C. Owen Gwathmey"'
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 41, Iss 2, Pp 307-323 (2016)
We determined the value of soil test information for potassium (K) in upland cotton production using the linear response plateau (LRP) and linear response stochastic plateau (LRSP) functions. A stochastic dynamic programming model was used to determi
Externí odkaz:
https://doaj.org/article/58eee634f24e4013885b7f7811a9854a
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 32, Iss 2, Pp 383-401 (2007)
Farmers are concerned about the high cost of planting herbicide-resistant cotton with the high plant densities recommended for ultra-narrow-row cotton. This study evaluated the effects on net revenues of four herbicide-resistant technology fee polici
Externí odkaz:
https://doaj.org/article/830589624ba54307a90bce9b79557bca
Publikováno v:
Journal of Plant Nutrition. 40:1547-1556
Recent research has shown that stochastic yield response functions fit data better than deterministic yield response functions; however, little research exists comparing profit-maximizing fertilizer rates for upland cotton (Gossypium hirsutum L.) usi
Publikováno v:
Field Crops Research. 191:41-53
The timing of cotton crop maturity is a major determinant of yield, fiber quality, and net returns. Yet there is surprisingly little consensus on the definition of crop maturity in cotton and no standard method of measuring its timing. This review pr
Publikováno v:
Agricultural Systems. 106:84-93
Information about soil nutrient carryover dynamics can assist cotton producers with the optimal management of potassium (K) fertilizer. Optimal K management promotes cotton plant health, may decrease input costs, and increases cotton lint yields. A d
Publikováno v:
Agronomy Journal. 103:584-592
Cotton (Gossypium hirsutum L.) producers are motivated to reduce seeding rates by the high cost of seed and gene technology. A 3-yr study was conducted in irrigated and nonirrigated fields at Milan, TN, using combinations of row width, planting patte
Publikováno v:
Agronomy Journal. 102:1352-1360
Cotton (Gossypium hirsutum L.) producers monitor crop maturity during the season to determine when to terminate inputs and to defoliate. COTMAN monitors crop maturity based on time for plants to reach five nodes above white flower (NAWF = 5). Normali
Publikováno v:
Agronomy Journal. 101:738-746
Cotton (Gossypium hirsutum L.) growers want information about alternative planting configurations to reduce seed, technology, and other production costs. We evaluated the impact of solid and 2 x 1 skip-row configurations on net returns for cotton gro
Autor:
C. Owen Gwathmey, Lawrence E. Steckel
Publikováno v:
Weed Science. 57:346-350
Field studies were conducted to examine both density and duration of glyphosate-resistant (GR) horseweed interference in cotton. Two studies, one examining the effect of horseweed density and a second the duration of horseweed interference, were cond
Autor:
Randy Wells, Ryan P. Viator, Keith L. Edmisten, J. Tom Cothren, Earl D. Vories, Russell C. Nuti, C. Owen Gwathmey, Jack T. Reed
Publikováno v:
Agronomy Journal. 100:1327-1331
The last effective boll population (LEBP) is the basis for many cotton (Gossypium hirsutum L.) management decisions such as defoliation timing. The objective of this research was to determine the last effective boll population based on first position