By: Allison Justice, PhD
The Hemp Mine
Christmas season has passed, and planting season is right around the corner. Now is the time to begin planning for the 2021 hemp growing season.
There are many things to consider for field preparation, so let us prioritize:
Soil & water testing
This step is easy to let fall by the wayside but remember it is one of the most important things you can do for your crop. Testing of soil and water sources should be done, at a minimum, annually. State universities as well as many private testing labs will do these tests at a very affordable rate. Most testing facilities will also aid on how to test and how to interpret results. One soil test is not enough, there will be many areas of your field that need addressed differently. Ask your lab for assistance.
Pre-plant fertilizer
Once you receive results, you can then make an educated decision on field pre-planting amendments, such as lime or nitrogen. After your field is treated and your soil rotated, you then can retest to understand the amount of liquid fertilizer you will need to apply throughout the season.
Irrigation planning & supplies
To get the most out of your crop and to avoid drought stress, irrigation implementation is key. Some fields are trickier than others to lay out properly so contacting an experienced irrigation specialist can be helpful for design. A common way for irrigation delivery is drip tape which is laid mechanically under plastic or biodegradable mulch. Pressure, pump size, and injector capability should be determined for proper water distribution.
Mulching
Many hemp farmers choose to mulch their fields. Mulching helps to increase water retention, reduce weed pressure, and alter temperature. Additionally, when mulching is laid, the planting equipment normally can lay irrigation under the plastic as well as mound soil into beds. Mounding is important in areas which have frequent rain because it contributes to proper drainage. Mulch color can manipulate temperature and there are also great options for biodegradable mulch. Biodegradable mulch can help reduce labor and the loss of topsoil at the end of the season.
Genetics
The right genetic choice is 75% of the battle for a successful season. Work with breeding companies that have a proven record and can provide you with more than just a certificate of analysis (COA). Think about where these plants were bred and for what reason they may have been selected. Ask the breeder for references and data from the previous year’s trials.
Products to help you get started
| Product Name | Item Number | |
|---|---|---|
| LUMITE GCB 3' 300' Ground Cover Blue | 78-2420 | |
| Blk/Wht 1.25 Mil 4' X 4000' Embossed | 78-1032 | |
| Blk 1.25 Mil 3' X 2000' Embossed Mulch | 78-1025 | |
| Netafim Figure 8 Line End | 5011001 | |
| 2Gph WPC Jr. P/C Woodpecker Dripper | 5010013 | |
| Netafim 1000' .520-.620 Tubing Black | 5010030 | |
| Netafim 2" FLEXNET PIPE 60" SPACING 328' | 5010042 | |
| Netafim 1/2"MPT Elbow X.636TWD FLEXNET | 5011006 | |
| Space-It 8Mil .4Gph 9000' Tape 12" Space | 50183129 | |
| Streamline X 8Mil .2Gph 9000' 18" Space | 5018618 |
