2 AGRIBUSINESS – 2.71 – START WITH A LITTLE GREENHOUSE
ORGANIC FARMING COURSE AGRO-ECONOMY
2 AGRIBUSINESS – 2.71 – START
WITH A LITTLE GREENHOUSE
GROW YEAR ROUND WITH A
GREENHOUSE
With the almost 500% surge in lumber prices,
using pallets, and other lower cost items would be the way to build this. This simple
Greenhouse is easy to build and would be a great way for you to get an early
start every Spring, and then to extend your season in the Fall/Winter. You
would be able to grow healthy Vegetables for your Family year-round.
Here is the info for the
greenhouse:
A lot of thought and planning went into the
design and construction of this Greenhouse. With cost being one of the
number-one constraints for the project, we thought it best to use what we had
on hand – pallets, cattle panels, and some new materials to give it good
rigidity. We ended up with a Quonset/High-Tunnel-style greenhouse.
Estimated Final Cost: $305
Dimensions were 9' x 12.5'
The size of greenhouse was largely determined by
the construction materials on hand. The big decision was how many cattle panels
to use. The panels we had were 50 inches tall and 16 feet long. We originally
were only going to use two panels, but you should always go bigger that you
think you need or want, so we went with three panels. This gave us 12.5' as the
length of our greenhouse. Then for the width we determined that 9' as the base
of our arch gave us about 6.5' of head room once we placed the panels on the
mini 13" pallet foundation.
You can make the width as wide or as narrow as
you like, but keep in mind that too wide a span will not have enough tension in
the arch to support itself and a ridge beam will be needed.
After viewing the aftermath of high winds on
tarps for cattle panel goat shelters, and hearing stories of people chasing
their plastic down the field from their PVC high tunnels, we knew that special
consideration was needed for the storms and winds we get in our area. We had to
make sure that the covering was tight and would not tear in high winds. To
accomplish this, we planned on using 1" x 2" wood strips to pull the
plastic tight and secure it. We also added protective end caps (made from 1/2'
pipe insulation) on the cattle panel to protect the plastic from puncture
holes.
There are three types of plastic film that can
be used for a greenhouse.
They are: 1) a single-season non-UV 6 mil
plastic from Home Depot or hardware store,
2) a UV stable 4-year
greenhouse plastic,
and 3) a re-enforced UV stable greenhouse plastic.
The Home Depot type plastic is very cheap, but
is really not designed for use on greenhouses, and breaks down quickly. We
ended up using the basic 4-year greenhouse plastic and were able to cover all
surfaces with a 20' x 20' piece.
With the base of the greenhouse being
constructed out of mini pallets, we were able to incorporate base venting into
our greenhouse.
We had also planned a front door and a back
zip-up door, but ended up not using the zip door, and instead added an
automatic vent opener and window in the rear of the greenhouse.
First, we selected our spot and levelled the
foundation. We used mini pallets to build the base of the greenhouse. We
screwed them together, and then carried them out in whole segments to the
foundation. Each of the mini pallets measured 13" in length. For our 12.5'
greenhouse, we used 12 pallets on each side. This gave us a little bit of
excess, which was sawed off later.
We applied re bar braces pounded into the ground
on the inside with conduit straps to secure the foundation to the ground.
Didn't want the whole structure to fly away one night. Then we added 3' steel
spikes on the outer walls to counter the force of the panels pushing outward.
We used a 2 x 2 board as a bracing beam to hold
the panels even, and then used fence staples to secure the cattle panel to the
base pallets.
Once all three cattle panels were in place, we
used bailing wire to secure the panels together and made sure the cut point
faced inward as to not puncture the greenhouse plastic. We framed in the front
and back-end walls. The plastic was then stretched over the ends and secured
with 1x2 wood strips to the end wall pieces. This made the plastic very tight
and secure.
After the front and back walls were framed, we
added pipe insulation to the ends of the cattle panels to help protect the
plastic from the sharp edges of the panels. A ridge beam was added for
additional stabilization. We used left over plastic to build the door, which
was designed to be open partially or all the way.
In order to secure the plastic along the sides
of the greenhouse, the plastic was sandwiched between a 2x2 and a 1x2. This
allows the option of either keeping the plastic on the ground (and covering the
pallet vents) or easily propping it up to allow for more airflow on hot days.
We then added a rear wall automatic vent opener.
The window opens as the heat rises and greatly
increases the airflow as it opens.
** After building your Greenhouse, you will want
to start some Great Non-GMO Heirloom Seeds
More
Info … Grow successful with
consultant.
For successful SMART FARMING see
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KOZI YA KILIMO HAI KILIMO-UCHUMI
2 KILIMO – 271 – ANZA NA GREENHOUSE KIDOGO
KUZA MWAKA MZUNGUKO NA GREENHOUSE
Pamoja na kuongezeka kwa karibu 500% kwa bei ya
mbao, kutumia pallets, na vitu vingine vya bei ya chini itakuwa njia ya kujenga
hii. Greenhouse hii rahisi ni rahisi kujenga na itakuwa njia nzuri kwako kuanza
mapema kila Majira ya Masika, na kisha kuongeza msimu wako katika Majira ya
Kupukutika/Baridi. Utaweza kukuza Mboga yenye afya kwa ajili ya Familia yako
mwaka mzima.
Hapa kuna habari ya greenhouse:
Mawazo na mipango mingi iliingia katika usanifu
na ujenzi wa Greenhouse hii. Huku gharama ikiwa mojawapo ya vikwazo vya kwanza
kwa mradi, tuliona ni vyema kutumia tulichonacho mkononi - pallets, paneli za
ng'ombe, na nyenzo mpya ili kuupa uthabiti mzuri. Tuliishia na chafu cha mtindo
wa Quonset/High-Tunnel.
Kadirio la Gharama ya
Mwisho: $305 Vipimo vilikuwa 9' x 12.5'
Saizi ya chafu iliamuliwa
kwa kiasi kikubwa na vifaa vya ujenzi vilivyopo. Uamuzi mkubwa ulikuwa ni
paneli ngapi za ng'ombe zitumike. Paneli tulizokuwa nazo zilikuwa na urefu wa
inchi 50 na urefu wa futi 16. Hapo awali tulikuwa tunatumia paneli mbili tu,
lakini unapaswa kwenda zaidi kila wakati unavyofikiria unahitaji au unataka,
kwa hivyo tulienda na paneli tatu. Hii ilitupa 12.5' kama urefu wa chafu yetu.
Kisha kwa upana tuliamua kuwa 9' kama msingi wa upinde wetu ilitupa takriban
6.5' ya chumba cha kichwa mara tu tulipoweka paneli kwenye msingi wa godoro la
mini 13.
Unaweza kufanya upana kuwa
mpana au mwembamba unavyopenda, lakini kumbuka kuwa upana mkubwa hautakuwa na
mvutano wa kutosha kwenye upinde ili kujitegemeza na boriti ya matuta
itahitajika.
Baada ya kutazama matokeo ya
upepo mkali kwenye turuba za mabanda ya mbuzi, na kusikia hadithi za watu
wakifukuza plastiki zao chini ya shamba kutoka kwenye vichuguu vyao vya juu vya
PVC, tulijua kwamba uzingatiaji maalum ulihitajika kwa dhoruba na upepo
tunazopata katika eneo letu. Ilitubidi kuhakikisha kwamba kifuniko kilikuwa
kizito na hakingerarua upepo mkali. Ili kukamilisha hili, tulipanga kutumia
vipande vya mbao 1" x 2" ili kuvuta plastiki kwa nguvu na kuilinda.
Pia tuliongeza vifuniko vya mwisho vya kinga (vilivyotengenezwa kutoka kwa
insulation ya bomba 1/2 ') kwenye jopo la ng'ombe ili kulinda plastiki kutoka
kwa mashimo ya kuchomwa.
Kuna aina tatu za filamu ya
plastiki ambayo inaweza kutumika kwa chafu.
Nazo ni: 1) plastiki ya
msimu mmoja isiyo ya UV mil 6 kutoka Home Depot au duka la vifaa,
2) plastiki ya chafu ya UV
ya miaka 4,
na 3) plastiki ya chafu
iliyoimarishwa tena ya UV.
Plastiki ya aina ya Home
Depot ni ya bei nafuu sana, lakini kwa kweli haijaundwa kwa matumizi ya
greenhouses, na huvunjika haraka. Tulimaliza kutumia plastiki ya msingi ya
chafu ya miaka 4 na tuliweza kufunika nyuso zote kwa kipande cha 20' x 20'.
Kwa msingi wa chafu
ikijengwa kutoka kwa pallets ndogo, tuliweza kujumuisha uingizaji hewa wa
msingi kwenye chafu yetu.
Tulikuwa pia tumepanga
mlango wa mbele na mlango wa nyuma wa zip, lakini tukaishia kutotumia mlango wa
zipu, na badala yake tukaongeza kopo la kiotomatiki na dirisha nyuma ya chafu.
Kwanza, tulichagua doa yetu
na kusawazisha msingi. Tulitumia pallets za mini kujenga msingi wa chafu.
Tuliziunganisha pamoja, na kisha kuzichukua kwa sehemu nzima hadi msingi. Kila
moja ya pallet ndogo ilikuwa na urefu wa 13 ". Kwa chafu yetu ya 12.5',
tulitumia pallets 12 kila upande. Hii ilitupa ziada kidogo, ambayo ilikatwa
baadaye.
Tuliweka viunga vya upau
upya vilivyopondwa ardhini kwa ndani na kamba za mfereji ili kuimarisha msingi
chini. Sikutaka muundo wote uondoke usiku mmoja. Kisha tukaongeza spikes 3 za
chuma kwenye kuta za nje ili kukabiliana na nguvu za paneli zinazosukuma nje.
Tulitumia ubao wa 2 x 2 kama
boriti ya kusawazisha ili kushikilia paneli sawasawa, na kisha tukatumia
viambata vya uzio ili kuimarisha jopo la ng'ombe kwenye pala za msingi.
Mara tu paneli zote tatu za
ng'ombe zilipowekwa, tulitumia waya wa dhamana ili kuunganisha paneli na
kuhakikisha sehemu ya kukata inaelekea ndani ili kutoboa plastiki ya chafu.
Tulitengeneza kuta za mbele na za nyuma. Kisha plastiki ilinyoshwa juu ya ncha
na kuimarishwa na vipande vya mbao 1x2 hadi mwisho wa vipande vya ukuta. Hii
ilifanya plastiki kuwa ngumu sana na salama.
Baada ya kuta za mbele na
nyuma zimepangwa, tuliongeza insulation ya bomba hadi mwisho wa paneli za
ng'ombe ili kusaidia kulinda plastiki kutoka kwenye kando kali za paneli.
Boriti ya matuta iliongezwa kwa uimarishaji zaidi. Tulitumia plastiki iliyobaki
kujenga mlango, ambao uliundwa kufunguka kwa sehemu au njia nzima.
Ili kuimarisha plastiki
kando ya pande za chafu, plastiki ilikuwa imefungwa kati ya 2x2 na 1x2. Hii
inaruhusu chaguo la ama kuweka plastiki chini (na kufunika matundu ya godoro)
au kuisimamisha kwa urahisi ili kuruhusu mtiririko wa hewa zaidi siku za joto.
Kisha tukaongeza kopo la ukuta wa nyuma kiotomatiki.
Dirisha hufungua joto
linapoongezeka na huongeza sana mtiririko wa hewa inapofunguka.
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