Question by ???????????????????: Can you think of a single human act that does NOT tamper with the environment?
Think about it: Whatever you do as a human being actually HURTS the environment. If you think deep, you’ll see:
For you to drink a glass of water, it was necessary to either drain an underground water reservoir or to dam a river.
For you to eat your veggies, fields had to be deforested for farmland, and herbi-and-pesti-cides had to be sprayed over crops.
For you to be born, your Mom had to be driven to a hospital, which caused the vehicle to release greenhouse gases.
For you to use the very computer you’re using now, hydrocarbons had to be turned into plastics, metals had to be mined and molten, silicon had to be chemically treated and the whole machine had to be built and shipped, causing lots of pollution.
Even a walk in the park pollutes.
What do you say?
Best answer:
Answer by Bebe Well all things change the environment – that is at it should be. Change is not necessarily bad.
If you think you can build your own greenhouse, you may very well be right. Greenhouses are very easy structures to build and maintain and are very different than trying to build an entire house or something as complicated! But before you take some old glass panes and pieces of lumber and try to build your own greenhouse, there are some important things to think about.
For one thing, greenhouses don’t use just regular glass. This won’t help to trap the heat inside. If you’re going to o build your own greenhouse you need to use glass that is especially glazed for this purpose. It is often double-paned as well. Using regular glass will keep your greenhouse no warmer than your regular house. Many greenhouses also use a special type of plastic for their panes as well. This too is especially made for the ability to trap heat inside. Typical clear plastic is not useful and won’t work to trap heat either. Remember that when you build your own greenhouse you need to use the correct materials. Imagine trying to build a house using building blocks! When you construct anything you need to use the right materials and this includes when you build your own greenhouse.
The material you use when you build your own greenhouse also includes what you use for the frame. Many greenhouses are made of wood because wood is so aesthetically pleasing. However wooden greenhouses are often made of pressure treated or coated wood so that it doesn’t rot. It’s very important to use the right type of lumber when you build your own greenhouse if you choose wood. You can also use aluminum, plastic, or galvanized steel. These are the most common materials for greenhouses, although they may be more difficult to work with if you don’t have much construction experience.
A better alternative when you want to build your own greenhouse may be to get a nice greenhouse kit and then you can modify it or customize it if you want. Most kits have everything you need for the frame and panes and then you can add your own benches and shelves on the inside. Another good idea when you build your own greenhouse is to use it as an additional room or porch. Add some landscaping around the exterior and set up some lawn chairs as well. Put some large potted plants out front to make it look more inviting.
If you have a lot of experience with building and construction then of course you can probably very easily build your own greenhouse. You just need to use the right materials and make sure you have it planned out properly. Make sure you include enough room for those shelves and benches. And if you are going to build your own greenhouse this means you can make it as big or as small as you need with all the amenities and extras you want, both inside and out.
Plant breeding and works production is a very productive hobby and livelihood. It is good way to earn some living by producing high-valued crops. It is also a good way of contributing to the environment. The best way to sustain this venture is to get a solar greenhouse. Read onto learn the basics of the solar greenhouse.
What Is a Solar Greenhouse?
The very principle of any greenhouse is to rescue solar energy whenever the sun shining high. However, solar greenhouses fulfil a more given intention. It is able to do more than stockpile the solar energy. The solar greenhouse is able to warehouse fervor that can be worn during night, overcast being or the cold term. It provides adequate stage that the plants will hardship for their advance even during the night time or the cold seasons.
The good thing about solar greenhouses is that there are choices to show from and to ensemble the needs of the owner.
They can last alone. This is very epitome for big production greenhouses. The freestanding ones are beliefs for commercial production. These are worn to products ornamentals or vegetables. They have two first designs, the shed typeface and the Quonset manner.
The shed-typeface has a long axis operation from the east to the west. It has a south-facing barrier smooth to stockpile maximum quantity of the energy from the sun. The north-facing mass on the other hand is very much insulated to forestall round death. These skin was what disparity a solar greenhouse from the normal ones.
The Quonset type can sometimes look like an underground pit. This is a low-charge greenhouse. It has a Quonset-shaped border and looks like a tunnel. It has a layer or two of synthetic sheet. This can save, as much as 40% of the heating fuel.
They can also be merely close to the greenhouses, very ultimate for plot use. The attached solar greenhouses structures that form some class of a spot protruding from a house. This is a good legroom for transplants or herbs.
Passive or Active
The solar greenhouse is classified into two. It can be the passive solar greenhouse or the active. These two makes use of different capital, but still operate a same objective.
The Passive Solar Greenhouse
In some seats, where colder seasons cultivate to suffer longer, there may be an essential to option to passive solar greenhouse, with gas or electric heating sense. This is the only way to defend the plants from getting too much cold. This is very model for growers as it can still give way to so much productivity despite the conditions. The use of heating systems for greenhouses to be rate-operative is best used if there are high-merit crops to be produced.
The Active Solar Greenhouse
The active solar greenhouse makes use of supplemental energy. It transfers the solar heated air from the storeroom area to the other parts of the greenhouse.
Designing a Solar Greenhouse
Most would demand that running and maintaining a mundane greenhouse does not diverge much with the solar greenhouse. However, there are several customs that they differ. These are significant distinctions.
Solar greenhouses, distinct the everyday ones, have oriented glazing to get supreme solar ardor, even during frost. Its resources are intended to decrease loss of fervor. It uses round storing materials. It also has insulation especially valuable when there is no sunlight. The solar greenhouse also depends immensely on pure ventilation for cooling during summer.
Solar Heat Storage
This is one focal piece in scheming a solar greenhouse. To remain balmy even during cool nights, there must be sufficient quantity of solar round stored. One common method worn to stockpile this energy is to put rocking or distinct directly receiving the sunlight to absorb the warmth.
Cinder blocked stockade at the north flank of a greenhouse are also worn as good section storeroom. Dark-painted stoneware floorings can also be worn to stockpile the ardor. Any pile or terrazzo not used for fervor absorption is invented to be dyed light. This should be designed to show the roast and light and distribute it to the plants.
The management of a greenhouse can also clarify the amount of ardor stored. A greenhouse that is extensive of plants and structures can gather cook easier compared to a pour one. Composts can also compliment the round storage goal as they help goods carbon dioxide in the atmosphere. Furthermore, the microorganisms in the droppings also contribute to the raise in bury production.
Some would rely on any shape that would resemble a greenhouse to accommodate the plants. However, to be efficient and price-effective, aim for the best venue in your solar greenhouse.
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Question by cityquestioner : Is there any group to collect data on the number of city buildings have greenhouses on the roofs ?
Does the county agricultural agent (USDA) that can have this information? Could this information is through some type of building permit reports. Who knows what is grown in greenhouses? and if you use systems, hydroponics many? Have any schools, universities released by this practice? If the glass is no longer used, what material is the usual cover, or boards? If any of these greenhouses that may exist, resulting in a commercial? Best answer:
Reply by Dustoff cityquestioner Ghouse If not commercial and / or owner / operator does not contact the county agent, the competent authority, most likely do not know its existencia.Es possible that building permits would be issued if the facility is registered as a permanent fixture in the building. non-permanent structures require permits construction.The not grown is certainly known only to those who operate or have other knowledge of his existencia.Es quite possible that hydorponic systems are used, however hydroponic systems are capable of maintain and not the system for all users or productos.Crecí various vegetables in the construction of Horticulture / Plant Sciences Arizona State University in a test program with my teacher. I have never seen nor do I have knowledge of Ghouse rooftop of the institutions. For this type of use, rooftop Ghouse not practical. For a hobby – go for that.The Glass is still used and is a very efficient transmitter of light, but expensive. Especially the use of glass in the private sector, northern latitudes in relation to high-end properties because the glass looks good. double plastic wall and triple wall panels are cheaper, less maintenance, not as prone to damage, and do not require strengthened support structure that requires glass. plastic film is very popular with commercial growers because of its lower cost, but is much more fragile and prone to damage and should be replaced at intervals depending on their level as the ceiling and installed espesor.En, Ghouse business practice. . . I think not simply due to the accessibility and the roof should be designed for this type of hard wear, including airline service to the roof. Ghouse business operations must have tons of material produced to meet profitability. Accessibility should be easy to ensure profitabillity. In the ranks of land make this easy, the altitude increases costs.
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Question by Syrocko: Might it be a good idea to use one-way glass in a greenhouse?
It occurred to me that if light was allowed through from the outside, but the inside surface was a mirror, then this might result in an abundance of light. Getting even more carried away, I wonder if theoretically you could have one-way glass on every wall and a mirrored or reflective surface on the floor. Could this create a super-greenhouse that could grow tropical plants in a temperate climate? Or is there a reason why this wouldn’t work?
Best answer:
Answer by FlowersYes It would also reflect all the heat. Greenhouses have a vent system to keep temperatures reasonable. It’s not that they need more light, they need protection from too much heat. Some green houses paint the foundation black inside to absorb more heat for the cold nights.
Greenhouses are aids in the cultivation of crops. They are very effective in extending the growing seasons of certain crops and in protecting the crops from various adverse conditions which are brought about by weather conditions and predators. They enhance the capabilities of nature and of man to cultivate crops.
Indeed, greenhouses have become effective tools for man to properly cultivate crops. However, the proper growth and development of the crops are still in the hands of the cultivator. There are many factors that should be considered in maintaining a greenhouse. The temperature, humidity, ventilation and shading are some of the factors that need attention when handling a greenhouse.
One of the most important factors in maintaining crops inside a greenhouse is fertilization. Maintaining the adequate amount of nutrition is needed to successfully sustain the growth and development of the crops inside a greenhouse.
More often than not, greenhouse crops are classified as heavy feeders. Heavy feeders are usually defined as crops which require large amounts of fertilizers. However, knowing that the crops are heavy feeders is not enough. Knowing the ratio if the elements that go into the fertilizers is as important as knowing the amount to be applied to the crops.
Recent research has proven that the nitrate, nitrogen and ammonium balance will affect the growth of plants. In the State of Texas, cultivators are advised to use less than 50% of nitrogen in the form of ammonium. High amounts of ammonium in turn can cause foliage burn due to toxicity.
Application
Most of the greenhouse crop cultivators today use a liquid feeding program to be able to supply nutrients to the crops. This kind of nutrient supply program can be supplemented by slow release of granular fertilizers to the crops.
The frequency of the application of fertilizers can influence the growth of the plants as well. Most often, it is deemed important to be able to supply different nutrients during the peaking periods of the vegetative growth or reproductive growth of the crops. It is generally accepted that the best application system for fertilizers is a constant one. Constant feeing may be modified to be able to suit the needs of the plants. High soluble salts may be feed to the plants every other application.
The balance between nutrients should be maintained by the cultivator so as to avoid the occurance of deficiencies and toxicities in the plants.
Selection
There are many fertilizers which offer complete nutrients that are needed by the plants. These fertilizers contain nitrogen, potassium and phosphorus which are the most essential elements that are needed by growing crops. There are also fertilizers which are custom made for different crops.
Nutrients
Here are some key facts about the different basic elements that are needed by greenhouse crops:
Nitrogen- There are many different sources of nitrogen which can be used to supply the nutrient to the plants. Ammonium nitrate, potassium nitrate and calcium nitrate are some of the sources of nitrogen. If one is to supply nitrogen to the crops, he should not supply more than 50% of it in ammonium form.
Potassium- This is an essential element in the water utilization of the plants. The most common source of potassium for plants is the potassium nitrate.
Phosphorus- Phosphorus is needed by the plants for their growth. It is usually supplied in large amounts. However, one must always be cautious in supplying phosphorus in large amounts for it may make other nutrients insoluble. This will make these nutrients impossible for plant absorption. The most common way of supplying phosphorus is through phosphoric acid or super phosphate.
Other nutrients
There are other nutrients that are needed to be able to provide complete nutrition to the crops. Plants need calcium, magnesium, sulfur, iron, zinc, copper, manganese, boron, molybdenum and chloride. Some of these are supplied through the growing medium but the others are supplied through supplemental application.
Both the primary and secondary nutrients should be incorporated to the feeding program. There are commercial blends which can suit the needs of the crops that are being cultivated in the greenhouse.
One must be able to monitor the amount and the balance of the different nutrients that are supplied to the crops in the greenhouse. Only through proper nutrition will the plants achieve their optimum growth and development potential. Quality crops can be harvested if one knows how to get around the nutritional requirements of the crops.
Question by Moe: Is this the proof that it’s not the Sun?
An ardent AGW proponent provides us a list of scientific conclusions that can be sumarized with the following statement:
It’s not the sun because we said it’s GHG’s, and the sun’s contribution to recent global warming is somewhere between −1.3% to negligable to 30%.
What is recent? They each claim a different time period from 100 years, 50 years, 40 years, last 30 years, latter part of the 20th century or recent. What is the sun’s contribution? Do you think the it’s -1.3% guy and 30% guys agree with each other or Is this where I’m told I don’t understand how science works and that these guys are really in agreement with each other?.
On a side note I’d really like to party with the guy who can reconstuct sun spots from 11,400 years ago.
Here’s the list used to conclude that it’s not the sun:
* Erlykin 2009: “We deduce that the maximum recent increase in the mean surface temperature of the Earth which can be ascribed to solar activity is 14% of the observed global warming”
* Benestad 2009: “Our analysis shows that the most likely contribution from solar forcing a global warming is 7 ± 1% for the 20th century and is negligible for warming since 1980.”
* Lockwood 2008: “It is shown that the contribution of solar variability to the temperature trend since 1987 is small and downward; the best estimate is −1.3% and the 2σ confidence level sets the uncertainty range of −0.7 to −1.9%.”
* Lockwood 2008: “The conclusions of our previous paper, that solar forcing has declined over the past 20 years while surface air temperatures have continued to rise, are shown to apply for the full range of potential time constants for the climate response to the variations in the solar forcings.”
* Ammann 2007: “Although solar and volcanic effects appear to dominate most of the slow climate variations within the past thousand years, the impacts of greenhouse gases have dominated since the second half of the last century.”
* Lockwood 2007: “The observed rapid rise in global mean temperatures seen after 1985 cannot be ascribed to solar variability, whichever of the mechanism is invoked and no matter how much the solar variation is amplified.”
* Foukal 2006 concludes “The variations measured from spacecraft since 1978 are too small to have contributed appreciably to accelerated global warming over the past 30 years.”
* Scafetta 2006 says “since 1975 global warming has occurred much faster than could be reasonably expected from the sun alone.”
* Usoskin 2005 conclude “during these last 30 years the solar total irradiance, solar UV irradiance and cosmic ray flux has not shown any significant secular trend, so that at least this most recent warming episode must have another source.”
* Solanki 2004 reconstructs 11,400 years of sunspot numbers using radiocarbon concentrations, finding “solar variability is unlikely to have been the dominant cause of the strong warming during the past three decades”.
* Haigh 2003 says “Observational data suggest that the Sun has influenced temperatures on decadal, centennial and millennial time-scales, but radiative forcing considerations and the results of energy-balance models and general circulation models suggest that the warming during the latter part of the 20th century cannot be ascribed entirely to solar effects.”
* Stott 2003 increased climate model sensitivity to solar forcing and still found “most warming over the last 50 yr is likely to have been caused by increases in greenhouse gases.”
* Solanki 2003 concludes “the Sun has contributed less than 30% of the global warming since 1970″.
* Lean 1999 concludes “it is unlikely that Sun–climate relationships can account for much of the warming since 1970″.
* Waple 1999 finds “little evidence to suggest that changes in irradiance are having a large impact on the current warming trend.”
* Frolich 1998 concludes “solar radiative output trends contributed little of the 0.2°C increase in the global mean surface temperature in the past decade”
Best answer:
Answer by DaxExposesUrLies Its simple you cant tax the sun, so of course it is not the cause!
Every gardener takes care of the problem of the seedlings are about to enter the field early enough to ensure the plant will be fully developed before the end of the season. a -and-accessories.html / a>
Before I decided to learn how to construct a greenhouse, I’ve actually browsed through the internet for a greenhouse kit. I’ve considered just buying a ready made greenhouse kit but after gone through several of those and seeing prices that would leave a hole in the budget, I just decided to construct a greenhouse myself.
And to anyone considering the same thing, I’d suggest you do the same too. And, no, it’s not just about the money, though, it’s largely the reason when I first started. In the process of constructing a greenhouse, I become more familiar with factors that affect plant propagation and I was able to customize the greenhouse to suit my needs a grower.
Here are some things I have to consider to construct a greenhouse:
BUDGET
I started with a clear budget. In my case, this was pretty easy as I have an idea, more or less, on how much I can spend on the greenhouse. But if you don’t have an idea on what your budget might be, you can just browse through the prices of a greenhouse kit. You can use it as point of reference in setting a budget as I know from experience that constructing a greenhouse yourself is way cheaper than those kits available on the market.
SKILLS
Admittedly, I’m not much of a builder myself however, I do know some carpentry basics so I was able to construct my greenhouse in no time. Same with you, you also need to consider your level of skills in deciding what type of greehouse to build as there are types of greenhouses that’s easier to build as there are greenhouses that would take a more advanced carpentry skills.
MATERIALS
What materials are you going to use. This factor would depend on a number of things. One is your skills as stated previously. It is considerably easier to build a pvc greenhouse than it is to build a wooden greenhouse in terms of skill set.
Another thing to consider here is your needs as a grower. What types of plants are you planning to grow? What is the weather condition in your area? Do you have a big area for your greenhouse?
These are just some of the questions that you need to keep in mind.
DESIGN
The greenhouse design is also of importance in terms of functionality as well as aesthetic value of the greenhouse. I don’t know about you but if I have to put in some effort and invest some time in constructing a greehouse, might as well build something I can show to my neighbors and friends.
Of course, that doesn’t mean I have to compromise on functionality either. But if you have gone through the factors discussed earlier, it is easier to construct a greenhouse with functionality in mind.
There’s also this nifty resource which I put together compiling the details of what goes into building your own greenhouse.
There are many considerations to think of in planning your build it yourself greenhouses. But I’m sure you wouldn’t want to spend most of your time in trying to come up with a good design yourself. You sure wouldn’t want to leave some serious considerations behind it may prove more costly in the long run. So here’s a nifty resource in planning a good design for a build it yourself greenhouses.
