to create partial budgets for five summer fallow treatments: sunn hemp, velvet bean, cowpea, sorghum-sudangrass, and use of tillage to manage weeds preceding a summer squash crop. Partial budget analyses are used to evaluate the relevant costs and
Alyssa H. Cho, Alan W. Hodges, and Carlene A. Chase
Bielinski M. Santos and James P. Gilreath
A 2-year field study was conducted in two locations in the Dominican Republic to determine the influence of various support systems and nitrogen fertilization programs on passion fruit (Passiflora edulis var. flavicarpa) yield and economic returns. Three trellis systems were used: 1) single line, where a single wire was placed along the planting rows at 2 m high; 2) double lines, where two wires were established along the planting rows at 2 and 1 m high, respectively; and 3) crossed lines, with wires at 2 m high, allowing the vines to grow both along and across the planting rows. Nitrogen (N) fertilization rates were 13, 26, and 52 g/plant of N every 20 days. Plants trained with the single- and double-line support systems combined with 52 g/plant of N had higher marketable yield and had the lowest proportion of non-marketable fruit/plant per year. Partial budget analysis indicated that the single-line support system had a marginal return rate of 36% compared to the double-line support system.
Silvia G. Mauri, H.C. Bittenbender, Kent D. Fleming, and Loren D. Gautz
Marketable coffee (Coffea arabica) yield and cost of production under two systems of mechanized pruning—hedging and stumping— were investigated. Data were collected from 1997 to 2001—a single pruning cycle—on three cultivars on three farms on Kauai, Maui, and Molokai. Treatments were variations of hedging and stumping, including time of pruning, methods of re-growth control, and tree in-row spacing were applied to each coffee cultivar. Economic evaluation was based on a partial budget analysis of the actual costs per year of the different pruning systems used on each farm. Mechanical pruning costs per acre for best hedging and stumping treatments across cultivars were 90% and 83% less, respectively, than the current practice of manual pruning. Response to pruning system varied according to coffee cultivar, tree in-row spacing and farm location. The tall cultivar Mokka had higher yields when hedged at 5 ft (1.5 m) tall and 5 ft wide, and the semi-dwarf cultivar Yellow Catuai had higher yields when stumped at 2 ft (0.6 m) tall. Hedge pruning should be done early in the year, January to February, for the semi-dwarfs, `Yellow Catuai' and `Red Catuai', but can be delayed until May for `Mokka'. Annual topping in the hedging systems should be done January to May for `Yellow Catuai' but maybe delayed until May for `Mokka' and `Red Catuai' without yield loss. The economic evaluation revealed that the cost of stumping was higher than hedging. For `Yellow Catuai' on Kauai the economic evaluation indicated that although the cost of stumping was higher, the accompanying higher yields resulted in a higher gross margin for this system. When stumping, verti- cal branches can be set with a contact herbicide spray to avoid higher hand pruning costs without lowering yields. Stumps should be narrowed after stumping if spaced, 2.5 ft (0.75 m) the current standard in-row spacing for mechanical harvesting. Wide in-row spacing (5 ft) should be considered by growers when planting or re-planting.
Nathaniel Ferraro, Darrell Bosch, James Pease, and James S. Owen Jr.
is done most straightforwardly with a partial budget of annualized and discounted costs and returns. Partial budgets were used to consider marginal costs or returns specifically associated with the investment alternatives. If one alternative is a
Ursula K. Schuch, Jack J. Kelly, and Trent Teegerstrom
mats or overhead spray irrigation. Partial budgets including initial investment and maintenance costs using capillary mats, overhead spray irrigation, or hand watering with a hose were compared during two seasons. Materials and methods Plant performance
Bielinski M. Santos and Persio R. Rodriguez
( Halford et al., 2001 ; Martin et al., 2001 ). For the economic analysis, the partial budget methodology was applied on the two most promising treatments ( Perrin et al., 1988 ). This methodology uses a two-step procedure: 1) the dominance analysis and 2
Orlando F. Rodriguez Izaba, Wenjing Guan, and Ariana P. Torres
grafted and nongrafted cucumber was conducted. Data were used to develop a partial budget analysis and a sensitivity analysis. Data included production costs, marketable yield, and cucumber price through different market channels. Our goal is to increase
Olha Sydorovych, Charles D. Safley, Rob M. Welker, Lisa M. Ferguson, David W. Monks, Katie Jennings, Jim Driver, and Frank J. Louws
preplant fumigation with MeBr in a plasticulture production system. Second, we evaluated the economic feasibility of the alternatives to MeBr using a partial budget methodology. Partial budget methodology Partial budget analysis was used to evaluate the
Charles R. Hall and Dewayne Ingram
) were included in the analysis. This is common practice when using a partial budgeting economic framework. Facilities may vary significantly among successful operations in the industry; therefore, corresponding fixed costs also vary accordingly. Because
Desire Djidonou, Zhifeng Gao, and Xin Zhao
.95 (2010) and $11.95 (2011) per 25-lb carton during the harvest periods [ U.S. Department of Agriculture (USDA), 2011) ] were used in calculating the gross returns (crop value) of grafted and nongrafted tomato production. Partial budget analysis of grafted