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Hydroponic Seed-Starting & Environmental Variables | Tech Sheet (PDF)
This tech sheet describes the basic steps of seed-starting in hydroponic systems and introduces the primary variables that affect plant health and productivity in hydroponic systems. Information presented includes steps for seed-starting in hydroponic systems; primary environmental specifications of hydroponically grown crops; and recommended further reading. Read More
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Hatfield Transplanter | Assembly Instructions
Assembly Instructions and Components List for the Hatfield Transplanters. We currently are unable to offer this product; we are, however, actively searching for a replacement that matches our standards for quality, durability, and utility. Read More
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Bioset Germinator & Bioset Germinator Kit Instructions | Tech Sheet (PDF)
Follow the instructions in this Tech Sheet for best results with your Bioset Germinator Sprouter, which can be used year-round to produce a number of different sprouts crops for harvesting just past the germination stage. Read More
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Seedling Light Carts | Comparison Chart (PDF)
Use this full-color, downloadable/printable (PDF) Seedling Light Cart Comparison Chart to view and compare different cart models. Read More
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Soil-Block Makers | Instructions & Blocking Mix Recipe | Tech Sheet (PDF)
Follow these instructions with your Johnny's soil-block makers for best success, creating blocks of growing medium that have been lightly compressed, so they maintain their shape without the need for plastic containers. As your seedlings grow, their roots reach the edges of the soil block and are air-pruned by the separation between the blocks while increasing the oxygen available to the roots, which can increase vigor. This gives seedlings a substantial advantage when transplanted into the field — reduced root-disruption makes them less prone to transplant shock. Read More
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Precision Vacuum Seeder | Instruction Manual (PDF)
Berry Precision Vacuum Seeder Instruction Manual. The Precision Vacuum Seeder is perfect for small to midsize operations — directly seeds plug trays and cell packs up to 120 trays per hour with very high accuracy. Transparent seeder body allows for easy inspection for clogged or empty holes. Standard 1020 tray format. Made in the USA. Materials Included: Seeder assembly; Seed collection tray and holder; Small Shop Vac; Orifice cleaner; Inspection light. Follow these instructions for best results. Read More
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Precision Vacuum Seeder | Interchangeable Plates | Comparison Chart (PDF)
Use this convenient comparison chart to compare hole dimensions, features, and correct crop applications for each of the interchangeable plates available for your Precision Vacuum Seeder. Read More
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Precision Vacuum Seeder | Supplemental Instructions | Identifying Your Tray Brand (PDF)
Precision Vacuum Seeder Supplemental Instructions – How to Identify Your Seedling Tray Brand. Seeder plates for the Precision Vacuum Seeder are custom-built to order. When you order a Precision Vacuum Seeder, we need to know which brand of seedling trays you use, so that the holes in the plate can be milled to drop seeds in the center of every cell of your tray. Slight variations exist between different manufacturers' tray designs, and precision milling prevents seeds from being dropped too closely to the sides of some cells, which can impair seedling growth. A 50-Cell Seed Plate Most trays will have some type of logo or name... Read More
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Seedling Light Carts | Assembly Instructions (PDF)
Follow the instructions in this downloadable/printable Tech Sheet (PDF) for assembling your Johnny's Seedling Light Cart. Read More
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Seedling Light Carts Replacement Parts | Comparison Chart (PDF)
View this comparison chart for details regarding components and replacement parts for our Seedling Light Carts, including Part #, Trays, Shelves, Fixtures, Bulbs per Fixture, and which part # to order to replace a light fixture, bulb, or tray for your Seedling Light Cart. Note: Replacement light fixtures include bulbs. Read More
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Transplanted Vegetable Crop Yield Chart | Number of Plants Yielded per Seed Quantity & Average Harvest Yield
Transplanted Vegetable Crops – Plants per Seed Quantity & Average Yield. Chart listing average plants to expect per seed packet and 1000 seeds; days from sowing to transplant; days from transplanting to mature crops; and average yield per 100' row. Transplanted vegetable crops include Artichoke; Beets; Broccoli; Brussels Sprouts; Cabbage; Cauliflower; Celeriac; Celery; Eggplant; Kale; Kohlrabi; Leeks; Lettuce; Melons; Bulbing Onions; Pepper; Tomato; and Watermelon. Read More
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Paperpot Transplanter | Assembly Instructions | Tech Sheet (PDF)
Follow the instructions in this Tech Sheet for assembling the Paperpot Transplanter. Detailed specifications are provided for the materials included and needed for assembly and the full step-by-step, illustrated assembly process. Read More
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Johnny's Pro-Am Seedling Grower Kit | Tech Sheet (PDF)
By growing your own seedlings, you can plant the varieties you prefer and have them ready for your garden in prime transplanting condition when you want them. The Research Department at Johnny's Selected Seeds has designed this kit of professionally-approved flats and trays for maximum versatility and long life. Read More
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Johnny's "Light" Pro-Am Seedling Grower Kit | Tech Sheet (PDF)
By growing your own seedlings, you can plant the varieties you prefer and have them ready for your garden in prime transplanting condition when you want them. The Research Department at Johnny's Selected Seeds has designed this "light" version kit of professionally-approved flats and trays for maximum versatility and long life. (By not including the germination mix with this kit, it can be shipped anywhere.) Read More
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Guidelines for Starting Seeds Indoors | Tech Sheet (PDF)
Follow these guidelines for starting healthy seedlings indoors from seed, including tips for hardening off your transplants and troubleshooting advice. Read More
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Johnny's 512 Mix | Instructions for Using Our Compost-Based Growing Mix
Johnnys 512 Mix is a complete, compost-based growing mix for soil blocks, trays, or small containers. It is a blend of mature compost, blond sphagnum, fish meal, and Perlite. No chemical fertilizer or wetting agents are added. The peat moss used in the 512 Mix is considered essentially sterile for horticultural purposes. The compost is not sterilized. Most growers will want to use the mix moistened as it comes from the bag, preserving its organic, living character. However, growers requiring a strictly sterile mix should heat-sterilize this product before use. SEED STARTING: 1. 2. 3. 4. Read More
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