12 articles tagged "Transplant Production".

Unit heaters that aren’t properly maintained can be a source of air pollution that harms seedlings. (Photo by E. Maynard)

Transplant production will soon begin in earnest if not already underway. It is sensible to check the greenhouse heating system before starting production to make sure it works and won’t pollute the air in the greenhouse. This checklist for gas or propane-fire unit heaters highlights some of the major points. If you are not familiar with the system a service technician can help. General Maintenance. Check for physical damage; Remove any obstruction in vent and exhaust systems; Make sure components are supported properly and securely. Fans and Blowers. Lubricate as needed; Check for smooth operation; Inspect for physical damage; Adjust belts as needed; Check connections to electrical power. Heat Exchangers and Burners. Inspect exchanger closely for cracks or corrosion where air-polluting gases can escape; Clean inside tube surfaces if required; Inspect for dark discoloration on metal which may be a sign of overheating and if found, investigate cause; Clean gas[Read More…]

Flats of cabbage transplants are supported a few inches from floor of greenhouse

Many Indiana vegetable crops begin life as transplants. If lack of nutrients, lack of light, disease, or other problems slow growth during this stage it may reduce establishment success and/or growth and yield in the field or high tunnel. Good management of the following factors should lead to healthy transplants (see Figure 1). Time. Don’t seed transplants too early. Overgrown transplants are difficult to manage. If they get so root bound and shaded by other plants in the same flat that growth stops it will take them longer to resume growth in the field. They may become weakened and more susceptible to disease in the transplant tray and field. The ideal time depends on the crop and cell size, as well as the growing temperature. For ease of transplanting the finished transplant should have a well-developed root system that holds the root ball together, a sturdy stem, and be of[Read More…]

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