Hemp. Farming. Basics Industrial Hemp i. Hemp is made up of varieties of Cannabis Sativa that contain less than 0. Tetrahydrocannabinol THC. It is an annual broadleaf plant with a taproot and is capable of very rapid growth under ideal growing conditions. The female flowers and seeds are indeterminate, meaning that there are both ripe and immature seeds on the same plants at the time of grain harvest. Fibre hemp plants will grow to 2 4 meters tall without branching. In dense plantings i. The stem has an outer bark that contains the long, tough bast fibers. They are similar in length to soft wood fibers and are very low in lignin content. Hemp rope, textiles and clothing is made from these fibers. The core contains the hurds or Shives short fibers, similar to hard wood fibers and these are used for building, particleboard MDF and pet bedding, as well as plastics. For grain production the plant may branch and reach heights of 2 3 meters. Tall plants do not mean more grain and shorter plants are preferred for combing. In well structured and well drained soils the taproot may penetrate 1. In compacted soils the taproot remains short and the plant produces more lateral, fibrous roots. Growing Each i. Hemp variety has its own set of characteristics small or large seed, low or high oil content, different oil composition, etc. Varieties grown for fibre may contain from 1. As markets develop contracts to grow i. Hemp may specify the exact varieties that will meet specific market needs. Sony Pro 80 Manual. Hemp varieties tested in Ontario, Canada so far have all been of European origin with the exception of new Ontario bred varieties such as Anka and Carmen and they come in 2 types dioecious, which have male female flower parts on separate plants i. Kompolti and Unico B and monoecious, which have male female flower parts on the same plant i. Ferimon and Futura. A 3rd type of cultivar, known as female predominant, is a dioecious type that has 8. It is believed that this type of plant can yield more grain. Most French varieties are a hybrid of predominantly female types. Only varieties of i. Hemp that are named in the list of approved cultivars, published by Health Canada, are approved for planting in Canada. These varieties are known to produce plants containing less than 0. Tetrahydrocannabinol THC under normal conditions. The THC level may vary with stage of growth and increase under environmental stress conditions. They mature to fibre in 6. Using home grown or common seed is illegal. Dual Purpose Crops Most of the French and Romanian cultivars are suitable for grain and fibre production however these tall cultivars present some challenges for harvesting because growers need also to consider that weather conditions after grain harvest late August or September may not be suitable for retting drying the stalks. The FIN 3. 14 variety, which will grow to a maximum height of 0. CropOp/images/crop_images/industrial/fibre/hemp/hempf5_zoom.jpg' alt='Hemp Diseases And Pests' title='Hemp Diseases And Pests' />Penn State Extension delivers education you can trust. The CannabisHemp FAQ Welcome to Frequently Asked Questions about Cannabis Hemp. Version 1. 0. This document contains straight answers to tough questions about hemp. The webs most comprehensive marijuana growing guide covers every growing topic from Germination to Grow Room Design to help you grow successfully. Industry trends seem to be moving specifically towards grain or fibre varieties. Soil Conditions i. Hemp responds to a well drained, loam soil with p. H acidity above 6. Neutral to slightly alkaline p. H7. 0 7. 5 is preferred. Hemp Diseases And Pests' title='Hemp Diseases And Pests' />A reliable source of health articles, optimal wellness products, medical news, and free natural newsletter from natural health expert Dr. Joseph Mercola. Hemp, Inc. OTC HEMP Breaking News November 2, 2017. Hemp, Inc. Announces Delivery of Advanced CBD Hemp Oil Extraction Post Processing Equipment. The present invention utilizes the presporulation preconidial mycelial stage of entomopathogenic fungi as insect attractants andor pathogens. The fungus can be. MPI is always looking for pests and diseases that might have arrived from overseas. Finding them early is vital for a successful response. The South Australian Research and Development Institute SARDI provides research and development services to the state government, commercial clients and research. Diseases, Pests. and Disorders of. Potatoes A Colour Handbook Stuart Wale Head of Crop Services, SAC Scottish Agricultural College, Aberdeen, UK. The higher the clay content of the soil the lower the yield of grain or fibre. Clay soils are easily compacted and i. Hemp is very sensitive to soil compaction. Insects and Mites Associated With Hemp Production. Hemp fields can support a lot of different kinds of insects. Being able to recognize what is present and also. Young plants are very sensitive to wet soils or flooding during the first 3 weeks or until growth reaches the fourth internode approx. Water damaged plants will remain stunted, resulting in a weedy, uneven and poor crop. Poorly structured, drought prone sandy soils provide very little natural fertility or support for the i. Hemp plant. Extra nutrients and water will be required to achieve maximum yields on these soils, hence the extra costs make production uneconomical. Climate for Growing i. Hemp requires lots of moisture approx. If that amount of rainfall does not occur during the growing season it is important to make use of early soil moisture and to get early ground cover to reduce surface evaporation, as well as maintain good weed control. About of this moisture is required during flowering and seed set in order to produce maximum grain yields. Drought during this stage produces poorly developed grain heads and continued drought results in low yields of light grain. During the vegetative growth period i. Hemp responds to daytime high temperatures with increased growth and water needs. After the 3rd pair of leaves develop i. Hemp can survive daily low temperatures as low as 0. Celsius for 4 5 days. Fertility i. Hemp requires approximately the same fertility as a high yielding crop of wheat. Apply up to 1. 10kghectare of nitrogen, depending on soil fertility and past cropping history. Research also supports the application of 4. Base your phosphorus P2. K2. 0 applications on a recent soil test. To interpret soil test information, follow the nitrogen, phosphate and potash recommendations for winter wheat in OMAFRA publication 8. Agronomy Guide for Field Crops. Hemp growers in some places may benefit from adding sulphur. It is important to balance the nutrients with the crop requirements. For example excessive nitrogen, combined with inadequate potash, can result in stalk breakage and loss of crop Approximately 4. These contain over half of the nutrients applied to the crop in the first place and many of these nutrients will be available to help feed the following crop. Weed Control If hemp is planted into well drained, fertile soil under nearly optimum temperature and moisture conditions, it will germinate quickly and reach 3. At this stage it will give 9. Weed growth is suppressed by the exclusion of light from the soil. A rapidly growing i. Hemp population of 2. For pre plant site preparation guidelines, refer to OMAFRA Publication 7. Guide to Weed Control. Weed suppression is not a permanent condition. Weeds may appear on the same field next year if the field is rotated out of i. Hemp production. Perennial grasses may be weakened or killed if i. Hemp is grown a 2nd year on the same ground however this practice increases the chance of crop diseases to develop. Under grain production conditions weed suppression may be less complete the lower plant population or uneven stands allow more light to penetrate the canopy, thus aiding the germination of weed seeds. Cross seeding may improve canopy distribution and subsequent weed control where early, shorter verities are grown. In conclusion early planting, as soon as the soil is warm enough, is the recommended weed strategy. Diseases and Pests More than 5. Hemp crop. However, i. Hemps rapid growth rate and vigorous nature allow it to overcome the attack of most diseases and pests. Botrytis Cinerea grey mould and Scierotinia Scierotiorum white mould are common moulds affecting i. Hemp. Scierotinia also affects edible beans, canola and sunflowers. Mould spores may be spread by combines, other harvesting equipment and straw. A 4 year crop rotation is recommended as a good practice to avoid disease build up. Do not grow i. Hemp on the same fields following canola, edible beans, soybeans or sunflowers. Wind and hail damage can be significant to the i. Hemp crop. Tall plants with lots of upper leaf mass can be bent quite easily by mid to late summer storms. Broken plants will recover partially if not broken too low.