Growing hemp is a complex process that requires careful planning and preparation. Depending on the species, it can take anywhere from 70 to 180 days for a hemp plant to reach maturity. The length of the growing season, soil temperature, and the risk of frost all play a role in determining when to sow the seeds. It's important to supplement the soil with the necessary minerals to ensure that plants have all the nutrients they need for the season.
Additionally, planting accuracy is essential for establishing the target plant density and maximizing financial performance. Hemp seeds should be deeply watered once a week, either early in the morning or at dusk to prevent evaporation. Generally, you should be able to see seed sprouts within 5-10 days, although some hemp seeds may take up to two weeks. To achieve maximum yield potential and target stem diameter, fiber yields require a larger population of plants.
The Canadian Grain Commission has not established official classification and moisture standards for industrial hemp. However, previous research and the experience of growers have shown that hemp can be planted until mid-June and still achieve a reasonable grain yield. It is recommended to plant hemp seeds from April to June, although conditions are more important than the calendar date. The Health Canada guide for THC testing requires that sampling be carried out when the first fruits of 50% of the plants show resistance to compression.
Crop rotation and herbicide selection are important management strategies for controlling voluntary hemp. Under ideal growth conditions, plant population and grain yield were not affected by the increase in P2O5 rates. If the growth point dies or is damaged, lateral growth will increase and result in a bushier plant.