Kulima Zomera za Nkhaka ndi Njira Yothirira
Nkhaka (Cucumis sativus) ndi chinthu chodziwika bwino cha ulimi wa m'munda chifukwa cha kusasinthasintha kwake, kukhala watsopano, komanso msika wokhazikika chaka chonse. Komabe, kukolola kwa nkhaka kumakhudzidwa kwambiri ndi kupezeka kwa madzi. Kusowa kwa madzi kungayambitse kuchedwa kukula, kugwa kwa maluwa, zipatso zazing'ono, komanso kukoma kowawa. Mosiyana ndi zimenezi, madzi ochulukirapo angayambitse matenda a mizu ndikuchepetsa ubwino wa zipatso. Chifukwa chake, kulima nkhaka ndi njira yoyenera yothirira ndi njira yothetsera vuto la madzi okhazikika, kuwonjezera zokolola, komanso kuchepetsa kugwiritsa ntchito madzi ndi antchito.
1. Mikhalidwe Yokulira ndi Kukonzekera Malo
Nkhaka zimakula bwino kwambiri m'malo otsika mpaka apakati okhala ndi kutentha kozungulira 21–30°C. Chomera ichi chimakonda kuwala kwa dzuwa kokwanira komanso nthaka yotayirira, yodzaza ndi zinthu zachilengedwe, komanso yothira madzi bwino. pH yoyenera ya nthaka imayambira pa 5,5–6,8. Musanabzale, nthaka iyenera kuchotsedwa udzu ndi zinyalala za zomera, kenako ilimidwe mpaka kuya kwa 20–30 cm kuti mizu ikule bwino.
Pangani mabedi okhala ndi mulifupi mwa 100–120 cm, kutalika kwa 20–30 cm, ndi kutalika koyenera malowo. Mipata pakati pa mabedi iyenera kukhala pafupifupi 40–60 cm kuti ikhale ngalande, njira zothirira, ndi njira zotulutsira madzi. M'madera omwe nthawi zambiri kusefukira madzi, mabedi ayenera kukwezedwa pamwamba. Kugwiritsa ntchito manyowa okhwima (monga matani 10–20 pa hekitala) kumalimbikitsidwa kwambiri kuti nthaka ikhale yobereka bwino komanso kuti madzi azisungidwa bwino.
2. Kusankha ndi Kubzala Mbewu
Sankhani mitundu yabwino ya mbewu yoyenera msika womwe mukufuna: nkhaka zatsopano, nkhaka zazing'ono, kapena nkhaka zoti muzitha kuziika mu pickling. Gwiritsani ntchito mbewu zovomerezeka kuti muwonetsetse kuti zikumera bwino komanso sizikudwala matenda enaake. Kubzala kungachitike m'mathireyi a mbewu kapena m'matumba ang'onoang'ono odzazidwa ndi dothi losakaniza, manyowa, ndi mankhusu a mpunga. Kubzala kumathandiza kupanga mbande zofanana ndikuchepetsa kufa msanga.
Mbande nthawi zambiri zimakhala zokonzeka kubzalidwa zikafika masiku 7-14 kapena zili ndi masamba enieni 2-3. Ngati mwasankha kubzala mwachindunji, mutha kubzala mbewu 2-3 pa dzenje lililonse kenako ndikusankha chomera chabwino kwambiri chikamera.
3. Njira Yothirira Yoyenera ya Nkhaka
Kuthirira ndikofunikira kwambiri pakulima nkhaka. Njira zina zothirira zomwe zimagwiritsidwa ntchito kwambiri ndi izi:
a) Kuthirira kwa Madontho
Kuthirira madzi pogwiritsa ntchito njira yothirira madzi kumafikitsa madzi mwachindunji ku mizu kudzera mu chubu chothirira madzi ndi zotulutsa madzi. Ubwino wake ndi monga kusunga madzi, chinyezi chokhazikika m'nthaka, kuchepetsa udzu chifukwa cha malo ochepa onyowa, komanso kuyenerera kwake kuthirira madzi pogwiritsa ntchito madzi (fertigation). Njira imeneyi ndi yothandiza kwambiri kwa nkhaka, zomwe zimafuna madzi okwanira koma sizikonda kuthirira madzi.
b) Kuthirira Pothirira (Kupopera)
Makina opopera madzi amatsanzira mvula popopera madzi kudzera m'mphuno. Ndi oyenera malo akuluakulu komanso osalala, koma muyenera kusamala ndi nkhaka, chifukwa masamba onyowa kwambiri amatha kuwonjezera chiopsezo cha matenda monga powdery mildew ndi tsamba losawoneka bwino, makamaka ngati mpweya sukuyenda bwino.
c) Kuthirira m'mizere
Madzi amadutsa m'ngalande pakati pa mabedi. Njirayi ndi yosavuta komanso yotsika mtengo, koma imadya madzi ambiri ndipo imakhala ndi chiopsezo chachikulu cha kukokoloka kwa nthaka ndi kusalinganika kwa chinyezi. Ndi kuyenda bwino komanso nthawi yake, kuthirira mitsinje kungagwiritsidwebe ntchito, makamaka kwa alimi omwe alibe mwayi wogwiritsa ntchito ukadaulo wothirira madzi.
4. Kukhazikitsa Kosavuta kwa Kuthirira Pothirira
Pa ntchito zazing'ono mpaka zapakati, kuthirira madzi pogwiritsa ntchito madontho kungagwiritsidwe ntchito ndi njira yosavuta. Zigawo zazikulu zimaphatikizapo gwero la madzi (chitsime, dziwe losungira madzi), pampu (ngati pakufunika), fyuluta, chitoliro chachikulu, mapaipi a mbali, ndi zotulutsira madzi/zokowera madzi. Zosefera ndizofunikira kuti zisatseke, makamaka mukamagwiritsa ntchito madzi ochokera m'mitsinje kapena m'zitsime zokhala ndi matope.
Ikani mapaipi mozungulira m'mizere ya zomera. Ikani zotulutsira madzi pafupi ndi pansi pa zomera kuti madzi afike mwachindunji ku mizu. Mu dothi la mchenga, kuthirira madzi kuyenera kukhala kochulukira koma kwa nthawi yochepa; mu dothi la dongo, kuthirira kungakhale kochepa koma kwa nthawi yayitali. Kugwiritsa ntchito mulch wa pulasitiki wakuda ndi siliva kumachepetsa kwambiri kuuma kwa nthaka, kuletsa udzu, komanso kusunga zipatso kukhala zoyera.
5. Mapangidwe Obzala, Mtunda Wobzala, ndi Mipando
Nkhaka zitha kubzalidwa ndi mtunda wa pafupifupi 50-60 cm mkati mwa mizere ndi 60-80 cm pakati pa mizere, kutengera mtundu ndi njira yokulira. Kuti apeze zokolola zambiri, alimi ambiri amagwiritsa ntchito zikhomo ndi trellises kuti athandizire zomera. Njira ya trellis imawonjezera kuwala, imachepetsa kukonza, imachepetsa kukhudzana ndi zipatso ndi nthaka, komanso imakweza ubwino wa zipatso.
Mizati iyenera kuikidwa zomera zikadali zazing'ono kuti mizu isawonongeke. Mangani tsinde lalikulu momasuka kuti lisavulale. Dulani mphukira zosabereka ngati pakufunika kutero, makamaka pakulima kwambiri.
6. Kupatsa Manyowa ndi Kupatsa Manyowa
Nkhaka ndi chomera chomwe chimayankha feteleza. Kuwonjezera pa feteleza wamba (manyowa ndi feteleza wa phosphorous), feteleza wowonjezera uyenera kuperekedwa pang'onopang'ono malinga ndi gawo la kukula: siteji yoyambirira ya zomera, siteji ya maluwa, ndi kukula kwa zipatso. Ngati mugwiritsa ntchito kuthirira kothira madzi, feteleza ukhoza kuchitika kudzera mu feteleza kuti upereke michere mwachangu komanso moyenera.
Kawirikawiri, nayitrogeni imalimbikitsa kukula kwa masamba ndi tsinde, phosphorous imathandizira kupangika kwa mizu ndi maluwa, ndipo potaziyamu ndi wofunikira kuti zipatso zikhale zabwino, zomera zizitha kupirira, komanso kuti zipatso zimere bwino. Pewani kugwiritsa ntchito nayitrogeni mopitirira muyeso, chifukwa ingayambitse kukula kwa zomera mopitirira muyeso ndikuchedwetsa kubereka zipatso.
7. Kusamalira Madzi Moyenera
Madzi a nkhaka amawonjezeka pamene zomera zikukalamba, makamaka nthawi ya maluwa ndi zipatso. Mfundo yaikulu yothirira ndi kusunga nthaka yonyowa koma osati yonyowa. Nthawi yachilimwe, kuthirira kumatha kuchitika tsiku lililonse kapena kawiri patsiku kwa nthawi yochepa (makamaka ndi kuthirira kothira madzi). Nthawi yamvula, kuthirira kuyenera kuchepetsedwa ndipo madzi ayenera kuchotsedwa kuti mizu isawole.
Kuwona kosavuta kungachitike poyang'ana chinyezi cha nthaka pa kuya kwa 5–10 cm. Ngati nthaka ndi youma kwambiri komanso yophwanyika, chomeracho chimafuna madzi. Ngati nthaka ndi yomata kwambiri komanso yodzaza madzi, siyani kuthirira ndikuwongolera madzi otuluka.
8. Kulamulira Tizilombo ndi Matenda
Zina mwa tizilombo toopsa kwambiri ta nkhaka ndi nsabwe za m'masamba, thrips, ntchentche za zipatso, mbozi, ndi nthata. Matenda ofala ndi monga powdery mildew, downy mildew, anthracnose, bacterial wilt, ndi fungal root rot. Njira zothirira madzi zimathandiza kuchepetsa chinyezi m'masamba, motero zimaletsa matenda ena poyerekeza ndi kuthirira pamwamba.
Gwiritsani ntchito mfundo zoyendetsera bwino za kasamalidwe ka tizilombo (IPM): ukhondo wa m'munda, kusinthana kwa mbewu, kuphimba tchire, kusaka (monga misampha yachikasu ya tizilombo), kudula masamba omwe ali ndi matenda, ndi kugwiritsa ntchito mankhwala ophera tizilombo moyenera. Kugwiritsa ntchito mitundu yolimbana ndi matenda komanso kusunga zida zoyera kumathandizanso kwambiri kupewa kufalikira kwa matenda.
9. Kukolola ndi Kukolola Pambuyo pa Kukolola
Nkhaka nthawi zambiri zimatha kukolola patatha masiku 30-40 mutabzala, kutengera mtundu ndi momwe zimakulira. Kukolola kuyenera kuchitika chipatso chikadali chaching'ono, chili ndi khungu latsopano, komanso kukula komwe kumakwaniritsa miyezo ya msika. Kuchedwa kukolola kungayambitse kupsa kwambiri, kukula kwa mbewu, komanso kuchepa kwa ubwino.
Kukolola bwino kumachitika m'mawa kapena madzulo pamene kutentha sikuli kotentha kwambiri kuti kukhalebe kwatsopano. Gwiritsani ntchito lumo lakuthwa kapena mpeni kuti musawononge tsinde. Zipatso zimasonkhanitsidwa pamalo amthunzi kenako zimasankhidwa malinga ndi kukula ndi mtundu wake. Kuzisunga pamalo ozizira komanso onyowa kungapangitse kuti zisungidwe nthawi yayitali.
10. Kesimpulan
Kulima nkhaka pogwiritsa ntchito njira yothirira kumapereka ubwino waukulu, makamaka pakusunga madzi abwino komanso kugwiritsa ntchito bwino madzi. Mwa njira zosiyanasiyana, kuthirira ndi madzi pang'ono ndiyo njira yabwino kwambiri yolima nkhaka mozama chifukwa imachepetsa kutaya madzi, imaletsa udzu, komanso imathandizira kubzala mbewu. Ndi kukonzekera bwino nthaka, kusankha mbewu zabwino, kuyang'anira bwino madzi ndi michere, komanso kuletsa tizilombo ndi matenda, alimi amatha kuwonjezera zokolola pamene akupanga nkhaka zabwino kwambiri zomwe zikukonzekera kupikisana pamsika.
Ngati ikugwiritsidwa ntchito nthawi zonse, njira yothirira simangothandiza nkhaka kukula bwino, komanso imakhala ndalama yokhazikika yoti igwiritsidwe ntchito pa ulimi wamakono, wogwiritsa ntchito bwino zinthu, komanso wokhazikika.
