Nthaka imasiyana mosiyanasiyana malinga ndi geology, ndipo kusiyana kumeneku kumakhudza mtundu wa acidity kapena dothi la nthaka-mlingo womwe umayesedwa ndi pH. Mapulogalamu a pH akuyambira pa 0 mpaka 14, ndi pH ya 7 ikuimira gawo lolowerera. Manambala amodzi ndi acidic, manambala apamwamba ali amchere. Ma level oyenera a pH ndi ofunikira kuti zomera zitha kutenga zakudya zomwe zimadalira m'nthaka.
Kutsekemera kwachitsulo kumakhudzidwa kwambiri ndi ma pH a nthaka.
Dothi lokongola pH la zomera zambiri ndi udzu ndizomwe zili pafupi 6.5, zomwe zimakhala zochepa pang'ono. Koma pali zomera zina zomwe zimafuna nthaka yowonjezereka kuti izikhala bwino. Nazi zina mwa zomera zomwe zimafuna nthaka yosavuta:
Zitsamba:
- Azaleas
- Rhododendrons
- Fothergillas
- Holly
- Gardenias
- Zitsamba zambiri zobiriwira
Mitengo:
- Mitengo yambiri yobiriwira
- Dogwood
- Beech
- Pezani thundu
- Maolivi a Willow
- Magnolia
Maluwa:
- Iris ya ku Japan
- Trillium
- Begonia
- Caladium
- Camellias
- Foxglove
- Kutsekemera mtima
- Zinnias
- Hydrangeas
Zamasamba:
- Radishes
- Mbatata zokoma
- Parsley
- Tsabola
- Mbatata
- Rhubarb
Zipatso:
- Blueberries
- Cranberries
- Miyendo
- Elderberries
- Gooseberries
Zomera zomwe zimafuna nthaka yowonjezereka kuposa momwe zimakulira nthawi zambiri zimasonyeza izi mwa kupanga chlorosis -kuperewera komwe kumayambitsa mitsempha ya m'munsi kapena masamba onse kuti atsegule. Ngati izi zikuchitika, zomera zanu zingafunike kuti muwonjezere kusintha kwa nthaka kwa nthaka yomwe ikukula, kapena kuti muonjeze zosowa zawo za asidi ndi feteleza kuti mupereke.
Zosintha zosiyanasiyana za nthaka ndi feteleza zimapezeka kuti zithandize izi ku zomera zokonda acid. Ambiri amapezeka mosavuta kumalo osungirako zamasamba ndi malo ogulitsa zinthu.
Musanayambe kusinthika kwa nthaka, yesetsani nthaka yanu kuti mudziwe mitundu ndi kuchuluka kwa kusintha kwa nthaka.
Sulfure
Sulfure imatenga nthawi kuti itchepetse nthaka pH , kotero iyenera kuwonjezeredwa chaka chisanafike. Koma m'njira zambiri, ndi njira yabwino kwambiri. Zimakhala zaka zambiri m'nthaka ndipo zimapanga ntchito yabwino yochulukitsa kuposa kusintha kwina. Ndibwino kugwiritsa ntchito sulufule m'chilimwe kapena kusanayambe nyengo yokadzazira nyengo, kukumba mkati mwa nthaka. Silikugwira ntchito bwino ndikuyesa sulufule kuzungulira zomera zomwe zilipo. Monga momwe ziliri ndi kusintha kulikonse, muyenera kuyesa dothi kuti mudziwe kuchuluka kwa sulfure kuti mugwiritse ntchito pH yomwe mukufuna.
Iron Sulfate
Iron sulfate lowers pH koma amafunika kuchulukirapo kwambiri kwa mankhwala kuti apangitse zotsatira zofanana ndi sulufule. Kaŵirikaŵiri amagwiritsidwa ntchito pofuna kuchiza zizindikiro zina za kusowa kwa chitsulo. Iron sulphate idzapereka zotsatira mofulumira kuposa sulfa (masabata atatu kapena anayi) koma ikhoza kuwononga zomera ngati mutagwiritsa ntchito kwambiri. Ikhoza kukumba mu nthaka ngati ufa, kapena kugwiritsidwa ntchito mu njira yothetsera madzi ndi kuthirira pa masamba kuti mutenge.
Sphagnum Peat Moss
Pogwiritsidwa ntchito mochuluka ngati kusintha kwa nthaka, peat moss imathandiza pang'ono kuwonjezera nthaka komanso kuwonjezera zinthu zakutchire kunthaka. Pamene mukukonzekera nthaka yanu yobzala, ikani masentimita 4 mpaka 6 a peysi ya peat moss pamwamba pa pamwamba ndi mpaka mamita 6 mainchesi.
Izi zidzathetsa nthaka kwa zaka pafupifupi ziwiri.
Acid Fertilizer
Ngati zomera zako zokonda acid zikukhala pakati pa mitundu ina yosakhala asidi, sizingatheke kusintha nthaka, popeza kuchuluka kwa acidity kungakhudze zomera zina. Apa, njira yabwino kwambiri ndi fetereza ndi chimodzi mwa zinthu zambiri zosungunuka madzi zomwe zilipo, monga Miracid. Yambani ndi njira zowonjezera mpaka mutamvetsetsa momwe zomera zimakhudzira.
Aluminium Sulphate: Gwiritsani Ntchito Mosamala
Sulphate yokhala ndi aluminium yowonjezera yakhala yowonjezera nthaka yoonjezera kwa wamaluwa amalima blueberries ndi zomera zina zambiri chifukwa zimakhala zofulumira kuchita ndi kukumba mozungulira zomera. Komabe, pali zodandaula zamakono za zowopsya za poizoni ya poizoni, zomwe zingakhale zovulaza makamaka kwa ana. Aluminiyamu ikhoza kuyamwa kuchokera ku madzi akumwa, komanso kugwiritsa ntchito kwambiri aluminium sulphate monga kusintha kwa nthaka kungawononge kuwonongeka kwa madzi apansi.
Akatswiri ambiri tsopano amalimbikitsa kuti aluminium sulphate ikhale yogwiritsidwa ntchito pa hydrangeas, kumene aluminium imathandiza kupanga maluwa okongola omwe ali ofunikira. Kwa zomera zina, zosankha zotetezeka zilipo, monga ammonium sulphate.
Ammonium Sulfate
Izi ndi njira yabwino yopangira aluminium sulphate. Zingakumbidwe m'nthaka m'munsi mwa zomera kuti ziwonjeze mitsempha ya sulfure m'nthaka. Izi zimafuna kusamala, komabe, chifukwa zingathe kutentha zomera ndi kuwonjezera ma asidi mofulumira.