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Browse by Author: Jonathan Schultheis
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Postharvest Cooling and Handling of Green Beans and Field Peas

By: Mike Boyette, Jonathan Schultheis, Ed Estes, W. C. Hurst, P. E. Sumner Postharvest Cooling and Handling of North Carolina Fresh Produce

This publication has been prepared to acquaint growers, shippers and processors with energy-efficient handling and cooling methods useful in preserving the quality of fresh green beans and field peas.

Chapter 8: Crop Production Management - Sweetpotatoes

By: Katie Jennings, Lina Quesada-Ocampo, Jonathan Schultheis, Alex Woodley, Craig Yencho, Kenneth Pecota, Anders Huseth, Stephen Cole Smith, Mike Boyette

This chapter of the North Carolina Organic Commodities Production Guide covers key management practices for organic sweet potato tobacco production.

A Guide to Intensive Vegetable Systems

By: D. C. Sanders, Ed Estes, K. B. Perry, David Monks, Kenneth Sorensen, Charles Averre, Michael Linker, Jonathan Schultheis, Mike Boyette, D. Eikhoff

Intensive Vegetable Production refers to a system of marketing and producing vegetable crops in which great attention is placed on detail and optimization of resources such as land, capital, labor, equipment, transportation to market and management time. The objective of such a system is maximum profit for the farm. The system you choose should take into account your location, availability of markets, production seasons and personal interest. This publication covers irrigation, plastic mulch, pest management, precision seeding, market preparation and many other facets of intensive vegetable production.

Summer Squash Production

By: Jonathan Schultheis Horticulture Information Leaflets

Summer squash are grown throughout North Carolina in both the spring and fall. A major portion of the state's production is located in Sampson and Henderson counties and adjoining areas. Summer squash are harvested as immature fruit, have soft skin, and are very perishable (1- to 2-week shelf life).

Specialty Crops in North Carolina: Acreage and Distribution

By: Roger Batts, Jeanine Davis, Gina Fernandez, Chris Gunter, Wayne Mitchem, David Monks, Jonathan Schultheis, Sara Spayd

With the increasing diversity of North Carolina agriculture, it is important to document and assess the presence of the commodities produced in the state. Crop data are publicly maintained on only the top 20 or so specialty crops, yet state and federal decisions impact hundreds of individual crop species. Because little information is available for most specialty crops, it must be gleaned from many different sources.

Guidelines for Sweetpotato Seed Stock and Transplant Production

By: Jonathan Schultheis Horticulture Information Leaflets

Sweetpotato production should be planned as a part of your total annual farm management scheme. Sweetpotatoes should not be grown just "once in a while" or just in those years you think you'll be able to "get rich quick." Commitment to an ongoing production program is required in order for you to be a successful grower.

Commercial Production of Pickling and Slicing Cucumbers in North Carolina

By: Jonathan Schultheis, Charles Averre, Mike Boyette, Ed Estes, Gerald Holmes, David Monks, Kenneth Sorensen

This comprehensive factsheet for farmers describes recommended practices for producing pickling and slicing cucumbers.

Growing Jerusalem Artichokes

By: Jonathan Schultheis Horticulture Information Leaflets

This publication offers information on the Jerusalem artichoke, (Helianthus tuberosus L.), also known as sunchoke, which can be produced throughout the United States. However, the plant is better adapted to the northern two-thirds of the country than the southern third. Most areas of North Carolina are satisfactory for producing the crop although yields are not as good as in cooler climates where the crop is better adapted. Jerusalem artichokes are also often used for pickling purposes.

Muskmelons (Cantaloupes)

By: Jonathan Schultheis Horticulture Information Leaflets

Muskmelon is commonly known in the trade as a cantaloupe. However, no cantaloupes are actually grown commercially in the United States, only muskmelons. Cantaloupes are a rough warty fruit while muskmelon have the characteristic netting on the fruit rind. This publication covers the growing and harvesting of muskmelons in North Carolina.

Sweet Corn Production

By: Jonathan Schultheis Horticulture Information Leaflets

Field corn was grown in North America before 200 BC. Field corn is produced primarily for animal feed and industrial uses such as ethanol, cooking oil, etc. In contrast, sweet corn is produced for human consumption as either a fresh or processed product.

Fresh Market Production Cucumbers

By: Jonathan Schultheis Horticulture Information Leaflets

The slicing cucumber is an important crop to North Carolina, with yearly production fluctuating between 5,000 to 8,000 acres, depending on season and market conditions. North Carolina slicing production accounts for approximately 10% of the U.S. production acreage.

Offsetting Drought for Small-Scale Vegetable Production in North Carolina

By: Jeanine Davis, Robert Evans, Garry Grabow, Bill Jester, Billy Little, Allan Thornton, Jonathan Schultheis

A good source of water is a necessity for producing quality vegetables. During periods of drought, crop diversification and mulches can be used to cope with drought situations, but nothing will substitute for the timely application of water. This publication covers some guidelines for irrigation systems to help offset periods of drought in the Southeast United States.

Presprouting Sweetpotatoes

By: Jonathan Schultheis, George Wilson Horticulture Information Leaflets

Sweetpotato seed roots should be pre-sprouted for maximum transplant production. Presprouting is the process by which sweetpotato seed stock is conditioned to produce sprouts (transplants) prior to bedding. Some refer to this as "waking up" the sweetpotatoes after they have been asleep in storage during the winter. This reinforces the often overlooked fact that sweetpotatoes are still alive.

What Is the Difference Between a Sweetpotato and a Yam?

By: Jonathan Schultheis Horticulture Information Leaflets

Several decades ago, when orange-fleshed sweet potatoes were introduced in the southern United States, producers and shippers desired to distinguish them from the more traditional, white-fleshed types. The African word nyami, referring to the starchy, edible root of the Dioscorea genus of plants, was adopted in its English form, yam. Yams in the United States are actually sweetpotatoes with relatively moist texture and orange flesh. The following information outlines several differences between sweetpotatoes and yams.

Growing Pumpkins and Winter Squash

By: Jonathan Schultheis Horticulture Information Leaflets

Pumpkins were used by American Indians long before Columbus visited our shores, and pumpkins readily found their way to the first Thanksgiving table. Pumpkins were used by early settlers much as we use them today – for food and decoration. This factsheet covers growing and harvesting pumpkins in North Carolina.

Storing Winter Squash and Pumpkins

By: Jonathan Schultheis, Charles Averre Horticulture Information Leaflets

Harvested squash and pumpkins are still very much alive even though they are mature and have been removed from the vine. The objective of curing and storing is to prolong the storage life of the fruit by slowing the rate of respiration and protecting against storage rots.

Growing Gourds

By: Jonathan Schultheis Horticulture Information Leaflets

Gourds are very closely related to cucumbers, squash and melons. They have been grown for both ornamental and utility purposes for many years. Several societies have been established to bring together people who are fascinated by the uniqueness of these plants.