March 2006
VOLUME 16, NUMBER 3

 

Shortcuts to Measuring Crop
Profitability Could Mislead

June 2004 www.vegetablegrowersnews.com
By David Conner
Cornell University

Knowing whether a crop is profitable is a crucial piece of information for farm management. Yet for diversified vegetable farms, some growing hundreds of different crops or varieties, measuring this can be a daunting task. Many prominent organic farmers in the Northeast use and advocate the use of a simple rule of thumb: “the $30 per pick-pack hour rule.” This rule states for that every hour spent harvesting and packing produce by the farmers and their crew, it ought to result in at least $30 in revenue. For example, if three workers spend two hours picking and one hour washing and packaging in a given crop (a total of nine person hours: (3*2) + (3*1)), this product should bring at least $270 (9*$30) in sales.

Using this rule is much easier than tracking all costs (inputs and labor, plus indirect and overhead costs) associated with growing a crop. However data collected over two growing seasons – 2002 and 2003 – from seven organic vegetable farms in the Northeast cast doubt on the usefulness of this rule. This rule is based on two main arguments:

1. $30/ hour may not cover the total cost of production; and

2. A key underlying assumption of this rule, that all production costs associated with raising a crop are roughly equal for all crops, is violated.

The production costs were gathered on seven organic vegetable farms in five Northeast states. They are participating in the Northeast Organic Network project and were identified as being exemplary farms. While these farms do not represent a random, or even a typical sample, the results of the following analyses should provide a caution against relying too much on this shortcut measure of crop profitability.

Break-even analysis

The first analysis measures the break even revenue per pick- and pack-labor hour. It is calculated by taking the total production costs (direct variable costs like labor and inputs, plus overhead and indirect variable costs, including land and machinery, maintenance, marketing and so on) and dividing by the total number of person-hours spent harvesting and packing. Farms that achieve this dollar-per hour figure will exactly break even. A farm that fails to bring in this amount of revenue per hour will lose money; an amount greater than this figure indicates profit. The table shows the maximum, minimum and average break-even revenue figures for each of 10 crops. Some crops have only two observations (data from only one farm over two years); others have up to eight. Not that, on average, only four crops – beet, carrot, onion and strawberry – would actually make money if the farmer only makes $30 per pick-pack hour. Five crops – Asian greens, lettuce, string beans, tomatoes and winter squash – would need, on average, to produce more than $50 per hour to break even.

Production costs before harvest

The $30 per hour rule assumes that the costs up to harvest are roughly equal on all crops; date from these seven farms call this assumption into question as well. For each crop on each farm, the harvest and packing labor costs were subtracted from production costs (inputs plus labor). The results were then compared across farms and across crops.
Looking at data from different crops over two years for the same farm, the differences in production costs before harvest are quite large. The costs differ from a minimum factor of 2.71 on one farm to a maximum factor of 10.89 on another. Clearly, costs before harvest are not roughly equal, even on the same farm. Looking at similar crops over different farms and years, the differences are much less pronounced. Four crops – beets, carrots, onions and string beans – vary by a factor of 1.2 or less. It is important to note, however, that analysis of each of these crops used data from only a single farm; these factors reflect the difference between two consecutive crop years on the same farm. Four crops – garlic, lettuce, tomato and squash – vary by a factor of 2.5 or more; these data all come from multiple farms.

Implications

Certainly, the $30 per hour rule has some value. Proponents claim that it may help growers gauge how fast and efficiently the crew is working, as well as providing information on the prices they received. It may also work better for growers who do much of the on-farm labor themselves and have less out-of-pocket labor expenses. This analysis does suggest caution in relying too heavily on this rule. While this analysis uses data from a small number of crops and farms, the fact that so few would make a profit at $30 per pick-pack hour is cause for concern. Furthermore, the key assumption of roughly equal costs for all crops before harvest is also questionable.

It is a daunting task to measure all costs across all crops on a diversified farm. However, reliance on quick – but rough – rules of thumb may lead to poor crop choices. Clearly, a measure in between these two extremes is in order. Here are some suggestions:

Measure all costs for a handful of crops: perhaps select one you believe is a sure money-maker and one you think may be less profitable;

Given that costs for a single crop on a single farm changed little over the two years, do a few in- depth measurements on different crops each year;

Calculate the break-even revenue for the whole farm (total farm expenses divided by total pick- pack hours),measure this figure for a few select crops and compare;


Use, with some caution, published enterprise budgets from other sources. Full budgets from the NEON project will be available in a book to be published shortly. Vern Grubinger’s Sustainable Vegetable Production from Start-up to Market contains budgets fro several crops; they were compiled several years ago, so some price adjustment may be needed. Organic vegetable budgets from Rutgers and North Carolina State University are also available.

Forms to guide the measurement of small fruit and vegetable crops are also available from Dr. Wen-fei Uva at Cornell University.

Summary of Break-even Revenues ($/hour)

Crop
Maximum
Minimum
Average
Asian Greens
75
35
55
Beet
21
17
19
Carrot
23
23
23
Garlic
38
28
32
Lettuce
75
15
54
Onion
27
23
25
Parsnip
53
29
41
Strawberry
17
13
15
String Bean
100
78
89
Tomato
195
24
85
Winter Squash
90
27
65

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