Call us: +44 (0)1227 789 649 - Monday to Friday 9am to 5pm
Hydroponics III 100 Hours Certificate Course
Learn About Hydroponics III
Hydroponics III course online. Learn to manage hydroponic systems and equipment. This course has been developed to complement Hydroponics I and II; and is intended for people who already have some experience and understanding of hydroponics.
Lesson Structure: Hydroponics III BHT321
There are eight lessons in this course as follows:
1 Options for Managing Plant Culture
- Hydroponic Crops Versus Organic Crops: Similarities between Hydroponic and Organic Approaches
- The Feasibility of Organic Hydroponics
- Organic Certification for Hydroponic Systems
- How Organic Hydroponics Operarates
- Organic Hydroponic Substrates and System
- Organic Pest and Disease Control
- Organic Hydroponic Problems
- Hydroponic Food Health
- Types of Hydroponic Systems
- Solution Culture
- Nutrient Film Technique (NFT) and Deep Flow Technique (DFT)
- Pond, Raft, Float or Raceway Systems
- Aggregate or Media Culture
- Deep Irrigation Systems
- Sub Irrigation and Ebb and Flow Systems
- Growing Substrates for Hydroponic Systems: Rockwool, Sawdust, Coconut Fibre (Coir), Perlite, Pumice and Scoria, Vermiculite, Sand and Gravel, Composted Bark, Other Substrates
- Historic, Hobby and Lesser Used Systems: Gericke Method, Bengal Method, Wick Method, Sand culture, Bucket and Gravity Feed, Hanging Basket Method
2 Planning a Hydroponic Operation
- Site Appraisal
- Climate: Temperatures, Frost and Snow, Humidity, Light, Dust, Wind
- Water Supply
- Other Resources
- Site Preparation
- Site Layout: Growing areas, Propagation Area, Service Buildings
- Matching a System with a Crop
- Types of Greenhouse Structures
3 System Design Components
- Materials for NFT Systems
- NFT Channel Size and Solution Volume
- NFT Channel Slope
- NFT Delivery and Drainage
- Sizing Tanks and Nutrient Reservoirs
- Materials for Substrate Systems: Concrete, Metal, Timber, Plastic
- Irrigation Design: Pumps and Pipes
- Specific Materials for Use with Aggregate Systems: Sand
- Gravel Aggregates
- Materials for Use with Rockwool
- Materials for Use with Sawdust
- Others: Aeroponics
4 Managing a Hydroponic System in Hot, Humid Conditions
- Humidity and Temperature
- Pest Control
- Types of Tropical Culture: Sand culture, ebb & flow system, Modified dynamic root floating (DRF) system (AKA Deep Flow Technique), Deep flow and chilling, Tropical lettuce production
5 Water Management
- Water Sources: Mains water, Rain water, Underground water, Surface water
- Water Quality: Hard water, Water pH, Water EC, Sodium Chloride, Turbidity, Smell and colour, Iron content, Carbon dioxide
- Water in Recirculating Systems
- Water in Run-to-Waste Systems
- Water Treatments
- Obtaining a Water Analysis for Hydroponics
6 Nutrient Formulation
- Fertiliser Salts for Formulations
- Nutrient Formulations
- Nutrient Formulation Stock Solutions
- Nutrient Formulation: Formulas for different systems, Stage of growth – grow vs bloom formulas
- Making up Hydroponic Stock Solutions from Fertiliser Salts
- Nutrient Deficiencies & Toxicities: Nutrient mobility and deficiencies, Table: Observablw plant symptoms in response to nutrient imbalances, Other modes of detection, Nutrient toxicities
7 Controlling Nutrient Levels
- Nutrients & pH
- EC (CF) & Nutrient Solution Levels: EC and TDS meters
- Maintaining Nutrient Levels
- Nutrient Temperatures
8 Pest & Disease Control
- Pest & Disease Control Measures: Integrated pest management (IPM), Nutrient solution management
- Common Pests & Diseases
- Pests: Aphids, Thrips, Whitefly, Caterpillars, Leaf Miners, Mites, Mealy Bugs, Scale Insects, Leafhoppers, Slugs and Snails, Flies, Other pests
- Common Diseases: Botrytis – Grey mould, Mildew diseases, Rusts, Rots, Bacterial diseases, Viruses, Nematodes
Each lesson culminates in an assignment which is submitted to the Academy, marked by the Academy’s tutors and returned to you with any relevant suggestions, comments, and if necessary, extra reading.
Learning Goals: Hydroponics III BHT321
- Describe different approaches to cultural operations in hydroponics and demonstrate awareness of the similarities and differences between organic and hydroponic produce and techniques.
- Describe how to plan a hydroponic operation through site and crop selection, matching a system with a crop, materials, resources and services required, and site layout; for different specific crops
- Discuss system design components such as pumps, NFT channels, grow beds, solution tanks, media, pipes and irrigation fittings in terms of size, type, and material options, for different systems and specific crops
- Provide details of how to manage a hydroponic system in hot, humid conditions such as in tropical or subtropical areas or in summer in temperate areas, for different specific crops
- Explain options for water management such as water sources, quality, testing, treatments, and use in recirculating and non-recirculating systems
- Explain and recommend different types of nutrient formulations, and advanced methods of detecting toxicities and deficiencies for different specific crops
- Recommend methods of controlling nutrient level concentrations through taking EC, pH and temperature measurements; and maintaining nutrient levels for different specific crops
- Recommend awareness of natural and other methods of pest and disease control such as biological controls as part of IPM and nutrient and pH manipulation for different pests and diseases
Practical (Set Tasks)
Practicals: Hydroponics BHT321
Learn about the following:
- Hydroponics versus Organic Crops
- Feasibility of Organic Hydroponics
- Hydroponic Food Health
- Types of Hydroponic Culture -Water, Sand, Aggregate, Rockwool, Sawdust, Other
- Planning a Hydroponic System
- Site Appraisal
- Climate -temperature, frost, snow, humidity, light, dust, wind
- Water Supply
- Other Resources
- Site Preparation
- Site Layout
- Matching a System with a Crop
- Grow Bed and Tank Construction
- Pumps and Pipes
- Materials for Different Types of Culture based Systems
- Materials for use with Sand Culture
- Materials for Use with Aggregate Culture
- Materials for Use with Rockwool Culture
- Materials for Use with Sawdust Culture
- Materials for Use with NFT
- Humidity and Temperature
- Pest Control
- Types of Tropical Culture
- Sand Culture in Hot Humid Places
- Ebb and Flow Systems
- Modified Dynamic Root Floating (DRF) System
- Deep Flow and Chilling
- Water Sources -mains water, rain, underground, surface
- Water Quality
- Hard Water
- Water pH
- Water EC
- Sodium Chloride
- Smell and Colour
- Iron Content
- Carbon Dioxide
- Water Recirculating Systems
- Water Treatments
- Compounds for Formulations
- Dutch Classification of Nutrient Formula
- Nutrient Formula
- Nutrient Deficiencies and Toxicities
- Nutrient Mobility
- Detecting Nutrient Deficiencies
- Nutrients and pH
- EC and Nutrient Solution Levels
- Maintaining Nutrient Levels
- Nutrient Temperatures
- Integrated Pest Management
- Common Pests and Diseases
Excerpt From The Course
HUMIDITY & TEMPERATURE Temperate climate crops cannot tolerate high humidity levels and temperatures, so in order to grow them outdoors in tropical and subtropical regions it is necessary to seek out areas where humidity and temperatures are lower. Usually, this means choosing sites in mountainous regions. Even in these areas, the daytime and night time temperatures are likely to be at the optimum level for temperate climate plants. During a heatwave, or a long spell above the usual temperatures, plants may die and whole crops fail. The higher the altitude, the less the risk that crops will fail due to fluctuations in temperature. However, higher altitude can often mean steeper sites. Such steep locations are less favourable for traditional agriculture methods since there is a greater degree of soil erosion and the fertility of the soil is quickly depleted with successive cultivations. Also, soils may have high salt levels. In addition, these sites are not easy to navigate with machinery and so generally require more labour than flat sites. In these environments, hydroponics may be a better choice. Certainly, if the soil is infertile there may be no other option. Steep sites can be terraced if necessary to enable the establishment of equipment and grow beds. However, it may prove problematic finding enough skilled staff to work in such a venture. It may also be necessary to store spare parts, nutrients, and equipment on site since deliveries may be slower. In developing countries this may be a necessity since most parts might have to be imported. Another option in hot, humid environments is to grow seedlings in hydroponic propagation systems, such as in cubes of coir, and then plant them out into open fields of soil. This way, they have a greater chance of survival since in soil culture many seeds are killed by soil-borne disease before they have a chance to germinate. Nevertheless, this would still prove unviable in areas of extreme heat and humidity. In temperate climates, hydroponic growers have used other methods to reduce the chance of plants bolting from long days of hot temperatures. These include planting crops in wide rows with dense plantings to keep the root systems cooler. However, less ventilation between the plants can lead to increased humidity and the spread of fungal diseases. Perhaps a better solution is to plant the crops later so that there is less risk of a cold snap followed by hot weather which may stimulate bolting of plants. In tropical and subtropical climates, evaporative cooling techniques can be used within greenhouse environments to reduce excessive temperatures making it possible to grow temperate climate crops. For example, misting will reduce temperatures – but again, moisture on leaves can trigger fungal infestations or sun scorch. Another method, the fan-and-pad technique involves pumping water via pipes over porous pads from one end of the greenhouse and exhaust fans at the opposite end.
Assessment is based on a combination of completing all assignments and sitting for a final short one and a half hour exam, in your own location.
If you don’t cope well with exams then you may elect to undertake a project instead. This is a popular option.
In addition, most modules have a Set Task at the end of each lesson placed before the assignment. This is an opportunity to undertake practical work to help you acquire knowledge and skills and practical experience. This ADL feature is an added bonus not found at most online schools. Set Tasks are not required for assessment.
Some courses also have optional Self-Tests which are available on our online learning platform. These are not available by correspondence or by USB, and do not form part of your overall grade.
How our courses work
- Choose Your Learning Method
You choose how you would like to receive your course material, i.e., Online, USB or Correspondence. The choice is yours. You may also work on online or offline.
- Tutor Allocation
Every student is assigned their own dedicated tutor who is an expert in their subject area. They provide as much or as little individual contact as you require. You can contact your tutor whenever you need – your hours are not limited.
- Feedback and Assignments
Tutor Feedback is an essential component in helping you understand the subject matter. Tutor feedback is given in the form of notes written on the assignment. We encourage you to contact your Tutor where help with clarification and understanding of course material may be required.
Your assignments are located at the end of each lesson. You submit them for marking whenever you are ready. There is no time limit.
- Set Tasks and Self-Tests
Most modules have a Set Task at the end of each lesson before for the assignment. This is where you get the opportunity to undertake practical work to help you acquire knowledge, skills and practical experience. Many modules also have short Self-Tests.
Once all assignments have been completed you may then elect to sit for a one and half hour exam in your own location. If you prefer not to take the exam you do have the option to undertake a project instead.
Once the exam or project part of the course is completed, your Certificate is then processed. Please allow approximately 4 weeks for this.
- Design Your Own Qualification
ADL offers students the flexibility to self-design their own qualification – bundling together a combination of 100-hour modules into a qualification higher than a certificate.
FREQUENTLY ASKED QUESTIONS
Due to our years of experience and wide range of online courses, here are a list of our FAQs and Answers asked by Students.
Q. Do I need to buy text books?
A. No, you are not required to purchase expensive text books for any of our courses, since each module has been written by highly qualified tutors and writers, and our courses are updated on a regular basis, adding new information, methods and knowledge. You are supplied with all “essential” references. Extra books are always useful though, especially for special projects. Tutors will advise you what to buy if you decide you would like to have extra reading material, but it is not essential. Check out our eBookstore if you’re looking for a starting point.
Q. What sets the Academy apart from other institutions?
A. A unique feature of our courses is that we combine knowledge of the subject matter with practical tasks (set tasks, found at the end of each lesson). So you get to do practical components in each lesson. The benefits of this approach are immense: – your skills and knowledge are developed to a much higher level not normally found at other distance learning institutions.
Q. How do the practical exercises (set tasks) work?
A. The practical component of each lesson can be in the form of : Field Research, Networking and Analysis, Conducting Surveys, Growing, Collecting, Photographing and Processes.
Q. Can I pay by instalments?
A. Yes, you can view all available payment options here.
Q. Are there any hidden costs?
A. There are no hidden extras – the tuition fee covers all course material, unlimited tutor support, assignment marking/feedback and any text books where specified and exams. The only extras are for the public examinations fees for the ICB Bookkeeping course and the RHS (Royal Horticulture Society) exams.
Q. Are your courses up-to date?
A. Our courses are continually updated. The course content is rapidly updated and improved without the red tape and bureaucracy experienced at other educational institutions.
Q. Do you have a Cancellation policy?
A. We have a cancellation policy that is fair and equitable. For further details please click here.
Q. What Recognition do you have?
A. The Academy for Distance Learning has various forms of recognition:
These include TQUK (Training Qualifications UK) – an Ofqual Awarding Organisation – ADL is an approved TQUK Centre.
IARC – International Approval Registration Centre, approved member. Accredited Training Provider for ICB (Institute of Certified Bookkeepers) and Approved Distance Learning Provider for the RHS (Royal Horticultural Society) and many more. Our graduates come from many parts of the world and have used our qualifications for successful employment and progression onto higher education. To view our full list of recognition and memberships please click here,
Q. Will I have any opportunity to engage with other students?
A. We have a Student Community group based on facebook! If you don’t have a facebook account already, you could make one just for talking with fellow students on the group.
Q. Why should I enrol with the Academy for Distance Learning?
A. Here at the Academy our students are our priority – we treat every student as a unique individual. This philosophy allows us to nurture those who are “slow and steady” learners rather than letting them fall through the cracks, while catering for those who are in a hurry to complete.
Q. Can I study from anywhere in the world?
A. Our courses are available to anyone, anywhere in the world from the comfort of your own home. The course content is relevant to any country, culture or economy.
Q. Completing the course- how long will it take?
A. Completion of modules varies from student to student. Many factors come into play such as work commitments and family life- there are always distractions. Some students work quicker than others. For a 100 hour module many students will take up to 3- 6 months, others take less time and some are even longer. It’s all up to you. There is no pressure to complete or deadline to finish. Naturally, longer courses will take more time.
Q. What learning formats are there?
A. Your enrollment comes with the Online Classroom study option by default. For a small additional cost you also have the options of USB or Correspondence.
USB: Your course is sent to you on a USB stick, so that you can carry it in your pocket. Ideal for those with unreliable internet connections. This option is an additional £5/module
Correspondence: You download the course content and then print your own copy to your requirements. You can then bind the lessons to suit your needs.
Q. Assessment – how does it work?
A. For each 100 hour module you are assessed by assignments (at the end of each lesson) and a final one and a half hour exam (or you may elect to complete a project instead of sitting the exam) – the choice is yours – you sit for the exam in your own location, or you can visit us in Canterbury, England to sit the exam if want to. Exam fees are included in the tuition fee you paid. You can read more about the examination process here. At the end of each lesson, there is an assignment. You submit it to the academy who then submits it to the tutor for marking, comments and feedback. Our policy is to have a grade for you within 5 to 7 days.
Q. How many assignments do I need to complete for each module?
A. At the end of each lesson, there is an assignment – so if a course has say, 10 lessons there would be 10 assignments. The number of lessons per module varies from module to module. See the course content from our website for further details.
Q. When do I have to hand in my first assignment?
A. There is no deadline for handing in the first assignment. Submit when you are ready. There are some students who hand in assignments within the first couple of weeks of enrolment – while there are others who submit their work 6 months later. It’s all at your own convenience to suit you. Everyone has different work and home commitments and we cater to these needs.
Q. I am having difficulty attending workshops/industry meetings, what can be done?
A. If your course requires attendance at workshops, conferences, or industry meetings; alternative arrangements can be made in your country; however, there may be an additional expense. We can appoint an appropriately qualified person anywhere to work through curriculum documentation supplied by us, to satisfy the requirements set down in a course.
Q. What qualification will I receive?
A. For individual modules, you would receive a Certificate (providing you complete all assignments and the exam). If you just want to complete the assignments only, then a Letter of Achievement would be awarded. For more details on qualifications awarded please click here.
Q. Is there a next level to progress to?
A. Yes – you can progress from one module to a combination of many modules and to higher qualifications i.e. Advanced Certificates, Diplomas and Higher Advanced Diplomas. Read more about course levels here.
Q. Can I customize my diploma/higher qualification?
A. Not all educational institution’s certificates /diplomas meet everyone’s needs. The opportunity to design your own diploma at the Academy (subject to our approval) is an added bonus, not found at other colleges. It’s a very popular option and widely used by many students. You quite simply choose the appropriate number of related modules needed to complete the qualification and submit them to us for approval as a custom diploma.
Q. What do I get when I complete the course? Will I receive a transcript?
A. At the completion of a 100-hour Certificate course and providing all assignments and exam have been completed, you will receive a Certificate and Transcript. The Transcript will list your GPA. Each 100-hour module is worth 3 credit hours.
Q. Do I have to sit for an exam?
A. Exams are optional but need to be undertaken in order to receive the Certificate or higher qualification. Exams are one and a half hours long. You appoint an adjudicator (subject to our approval) to supervise the exam. You sit for the exam in your own location. Its that simple.
Q. I don’t cope well with exams – what can I do?
A. If you feel you don’t cope well with exams you may elect to undertake a Project (set by the tutor) instead of sitting the exam. Many students prefer this option as they find researching the material for the project sharpens their research skills.
Q. If I don’t sit for the Exam do I still get a qualification?
A. If you don’t sit for the exam but complete the project alternative, you will still receive your endorsed qualification. If you don’t sit for an exam or complete a final project, providing you have completed all the assignments you will be awarded a Certificate of Achievement.
Q. Do I have to sit for the exam at the Academy?
A. No – whilst you are more than welcome to come to our location in Canterbury, U.K. and sit the exam in our classroom; the more popular option is to sit for the exam in your own location. You appoint an adjudicator to supervise the exam. Click here for more information on that process.
Q. Our tutors – who are they?
A. We only employ tutors who have are currently active in their industry with at least 5 years of real-world experience. Not only are they highly qualified but also experienced, knowledgeable, and professional- experts in their chosen fields from all parts of the world.
Q. Can I contact my tutor at any time?
A. Yes- you have unlimited access to tutors. We strongly encourage students to develop a dialogue with their Tutor. This is why we encourage students to submit their first assignment fairly quickly at the beginning of the course.
Every Academy student is assigned a tutor who supports you throughout your course and beyond. Your tutor is there to guide and facilitate your learning and provides as much or as little individual contact as you would like. When you submit your coursework the tutor will give you feedback that helps you develop your ideas and provides motivation. For those who do like to have interaction with other students, the ADL discussion forum connects you to students from all over the world.
Q. How do I contact my tutor?
A. You have direct contact with your tutor by email through the Online Classroom. Alternatively, you can write, fax, email, or phone the academy. Leave a message if your tutor isn’t available and they will phone, write or fax back; whatever suits you.
Q. If I don’t understand a question or a lesson may I contact the tutor?
A. You may contact a tutor as often as you like. There is no additional charge or restriction on this service. Contact can be made via the Student Zone, email, or by phone.
Q. Practical work – How is this done?
A. To find out more about this part of the course please visit the section on How Our Courses Work here.
What your tuition fees include
There are no hidden extras
FAQ - RHS Theory Qualifications
If you require further details about any of the RHS industry recognised qualifications please, call one of our friendly RHS Course Advisors on +44 (0)1227 789 649 or email: [email protected]
Q: When can I Enrol/Start My RHS Course With ADL?
A: Anytime, Anywhere. There are no enrolment deadlines.
Q: I live Overseas. Can I Study From Overseas?
A: You can study any of the RHS theory qualifications overseas. All courses are offered in English. You will need to email RHS Qualifications direct to arrange sitting for your examination overseas.
Q: Is There a Time Limit for Completing an RHS Qualification?
A: At present there are no time limits. However, RHS is contemplating in the future, the introduction of course time-lines.
Q: Are There Any Entry Requirements (Pre-Requisites)?
A: The RHS Theory courses do not require prerequisites, previous experience or any knowledge of horticulture. You just need passion for all things horticulture.
Q: What Course Should I Start With First? I Am New To RHS Qualifications.
A: We highly recommend that you start with Level 2 – Principles of Garden Planning, Establishment and Maintenance.
Q: What Does ADL Course Material Include?
A: Includes Power Point Presentations, Videos and written course lessons.
Q: When Do Exams Take Place?
A: Exams are held on fixed dates in February and June of each year. You should register as a candidate at least 3 months before these dates, so please do not leave exam registration to the last minute
Q: Where Do I Take My Exams?
A: UK: You take the exams at the RHS Wisley Centre, located between Cobham and Ripley in Surrey or at other authorised RHS centres around the UK.
Overseas: please email RHS qualifications direct for centre information.
Q: Exam Pass Marks?
A: Module – pass 50%. Commendation 70%.
Qualification: 50% pass for all modules.
Commendation awarded for all modules.
Each question carries a value of 10 marks.
Q: I’m Not Happy With My Exam Results?
A: You have the opportunity to re-sit your exam at the next opportunity.
There are no restrictions on the number of re-sits you can take. The highest mark you achieve will remain.,