Risk management, structures, the high tunnel environment, cultural practices, crop production, crops, and finances.
Supplemental fertilizer applications become necessary when the soil cannot supply the level of nutrient required.
Add amendments based on soil test results, crop requirements, nutrient content, available sources, potential improvements, and cost–benefit analysis.
Tools include plant tissue analysis and visual symptoms of nutrient deficiency and toxicity.
The composition of fresh versus composted manure, nutrient availability from manure/compost, and calculation of how much manure/compost to apply.
Understanding nutrient cycles helps to maintain soil fertility and protect water resources.
Choosing cultivars, selecting and preparing a site, and planting.
Risk management, business planning and start-up, and marketing (4,480 K PDF).