Posachedwapa, zokolola m'mudzi wakunja kwatawuni sizikondwera? Tsono, ndi nthawi yoti mudziwe kuti feteleza wotchedwa urea nthawi yayitali sinagwiritsidwe ntchito mmunda komanso m'munda. Pogwiritsa ntchito ntchito yake yoyenera, mukhoza kupeza zotsatira zabwino.
Maonekedwe a urea monga feteleza
Urea ndi dzina lodziwika bwino la mankhwala a carbamide. Amatchedwanso carbonic acid diamide, koma m'madera apadera kwambiri. Ogorodniki amadziwanso kuti urea amatanthauza nayitrogeni-munali feteleza - 45% ya okwana misa. Amapangidwa kuchokera ku zinthu zakuthupi ndipo ali ndi ntchito zosiyanasiyana. Makhiristo oyera kapena oonekera amatha kupasuka m'madzi ndipo amagwiritsidwa ntchito kuthirira ndi kupopera mbewu mankhwala kapena amaphatikizidwa ku nthaka poyamba.
Kodi ntchito ya urea imatani?
Sikuti aliyense amadziwa mtundu wa feteleza ndi urea. Amatanthawuza za feteleza feteleza, omwe, mwinamwake, amawoneka ngati ofunika kwambiri m'moyo wa zomera. Kulowa m'nthaka ngati ma khungu, feteleza amatembenukira ku ammonium carbon dioxide kapena gaseous ammonia. Ndi amene amathandiza kwambiri zomera zonse za zomera. Kotero, urea ndi wotchuka chifukwa:
- imathandizira kugawidwa kwa maselo a zomera, kukulitsa kukula;
- kumathandiza kudya kwa nayitrogeni mu zomera zofooka;
- kulimbana ndi tizilombo toyambitsa matenda;
- amadzaza dziko ndi nayitrogeni.
Kodi urea angasungidwe nthawi yayitali bwanji?
Shalafu moyo wa fetereza ngati urea ulibe malire. Ngakhale chitsimikizo ndi miyezi 6 pa phukusi. Kodi feteleza angagwiritsidwe ntchito mpaka liti? Sungani urea mu chidebe chotsekedwa mosamala kapena matumba osakonzedwa.
Ngati mankhwalawa adzalumikizana ndi mlengalenga, ndiye kuti pakapita nthawi chiwerengero chawo chidzachepa kwambiri, choncho phindu lidzachepa. Komabe mungathe kugwiritsa ntchito urea nthawi yaitali kwa nthawi yaitali.
Kodi ndi liti pamene mukufunikira kugwiritsa ntchito urea?
Aliyense amadziwa kuti kuchuluka kwa zakudya m'nthaka kungasokoneze zomera, komanso chilema. Ndicho chifukwa chake ndi kofunika kudyetsa zomera ndi urea ngati n'kofunikira komanso ndi zochepa zedi. Kulima munda "mosungirako" sikungatheke.
Koma pali zovuta pamene ntchito yapadera ya urea ndi yolondola. Muyenera kulandira thumba lamtengo wapatali pogwiritsa ntchito makriststasi mukawona kuti zomera:
- Musamakula, pokhala ofanana ndi pamene mubzala (nkhawa za mbande za phwetekere, nkhaka, biringanya, zukini).
- Masamba anayamba kutembenukira chikasu, owuma kapena kugwa.
- Ovary akugwa.
- Tizilombo tinazindikira.
- Pali zofooka, mphukira zochepa, masamba ang'onoang'ono, pali kuphwanya photosynthesis.
Momwe mungagwiritsire ntchito urea monga feteleza?
Kugwiritsidwa ntchito kwa urea pogwiritsira ntchito pamwamba sikungathandize. Pakangopita masiku ochepa, mankhwalawa, atagwirizana ndi nthaka tizilombo, amapita ku gaseous state (ammonium carbonate) ndipo amangowonongeka. Ndichifukwa chake carbamide ndibwino kuti alowe mu nthaka kapena osakaniza pang'ono. Kuwonjezera pa kutsanulira granules, carbamide imagwiritsidwa ntchito mu mawonekedwe osungunuka a kulowetsedwa mwachindunji kuzu.
Kubereketsa zipatso ndi mabulosi ndi zamasamba ndi urea kumayamba m'chaka ndikukhala nthawi yonse ya zomera. Pa nthawi imeneyi mankhwala 3-4 amachitidwa. Muyeneranso kudziwa za malo a urea omwe amachititsa kuti nthaka ikhale yambiri , choncho ndibwino kuti pokhapokha muwonjezere laimu (hafu ya kilo ya urea - 0,4 kg ya laimu kapena choko).
Mzere umodzi wa masentimita a kubzala kwa zomera zosiyanasiyana amagwiritsa ntchito mankhwala osiyanasiyana:
- strawberries, strawberries - urea amalowetsedwa pansi asanabzalidwe mbande, ulimi wothirira pa budding, 5 gr pa madzi okwanira 1 litre;
- kabichi, tsabola, tomato, anyezi, mbatata, adyo - 20-23 gr;
- zukini / squash ndi biringanya - 10-12 gr;
- Zomera - 300 gr pa munda umodzi;
- Kupopera mbewu masamba ku tizirombo ndi matenda - mpaka 15 gr pa 10 malita a madzi.