Kodi mankhwala a Pre-Emergent herbicides ndi chiyani?

Pre-Emergent herbicidesndi mankhwala ophera udzu omwe amathiridwa udzu usanamere, ndi cholinga chachikulu choletsa kumera ndi kukula kwa mbewu za udzu. Mankhwala a herbicides nthawi zambiri amagwiritsidwa ntchito kumayambiriro kwa masika kapena autumn ndipo amatha kupondereza kumera kwapachakandiudzu osatha.

Momwe Mankhwala Opangira Udzu Asanayambe Kumera Amagwirira Ntchito

Pre-Emergent herbicides amagwira ntchito posokoneza kameredwe ka mbewu za udzu. Mankhwalawa amapangitsa kuti nthaka isatsekeke, ndipo njere za udzu zikakumana ndi chotchinga chimenechi, zimakhudzidwa ndi mankhwalawo ndipo motero zimalephera kumera bwino.

Ubwino wa Pre-Emergent Herbicides

Kuletsa kwanthawi yayitali: Mankhwala oletsa udzu amatha kuletsa udzu mpaka miyezi ingapo.

Kuchepetsa Ntchito Yogwira Ntchito Pamanja: Kugwiritsa ntchito mankhwala ophera udzu asanatulukeko kungachepetse kufunikira kotchetcha mochedwa, kupulumutsa nthawi ndi ntchito.

Kuteteza mbewu: Kuthira mankhwala ophera udzu mbeu zisanamere zimateteza mbewu ku mpikisano wa udzu komanso zimalimbikitsa kukula bwino.

Kodi mankhwala ophera udzu pambuyo pomera ndi chiyani?

Mankhwala ophera udzu pambuyo pomerandi mankhwala ophera udzu omwe amathiridwa namsongole atamera kale ndikuyamba kumera. Amagwiritsidwa ntchito pochotsa msanga udzu womwe wakula kale ndipo ndi woyenera kuwongolera udzu nthawi zosiyanasiyana zakukula.

Momwe mankhwala ophera udzu akutuluka amagwirira ntchito

Mankhwala ophera herbicide omwe angomera amapangitsa namsongole kufa pochita mwachindunji pamasamba kapena mizu yawo, ndikuwononga minofu yawo yam'manja. Kutengera momwe amachitira, mankhwala a herbicides a nyengo yakumapeto amatha kugawidwa m'maguluwosankha komanso wosasankhamitundu.

Ubwino wa post-emergent herbicides

Zotsatira zake mwachangu: Mankhwala opha udzu akangomera amatha kupha udzu womwe ukukula mwachangu, mwachangu.

Ntchito yosinthika: imatha kugwiritsidwa ntchito nthawi iliyonse ya kukula kwa udzu ndipo imatha kusintha kwambiri.

Kuwongolera molondola: Mankhwala opha udzu omwe angomera amatha kuloza udzu winawake popanda kuwononga mbewu ndi zomera zozungulira.

Pre-Emergent vs. Post-Emergent Herbicides

Zotsatira zokhalitsa

Mankhwala oletsa udzu amakhala okhalitsa komanso oletsa udzu kwa nthawi yayitali, pomwe mankhwala ophera udzu amagwiritsidwa ntchito kwambiri pochotsa udzu womwe wakula kale ndipo umakhala ndi nthawi yayitali.

Nthawi yofunsira

Mankhwala oletsa udzu amawathira namsongole usanamere, nthawi zambiri m’nyengo ya masika kapena m’dzinja, pamene mankhwala ophera udzu wakumapeto amawagwiritsa ntchito udzu ukamera ndi kukula ndipo ungagwiritsidwe ntchito nthawi yonse yakukula.

Kusiyanasiyana kwa ntchito

Mankhwala oletsa udzu amagwiritsidwa ntchito poletsa udzu kumadera akuluakulu, makamaka mbewu zisanabzalidwe; Mankhwala ophera udzu a nyengo yakumapeto amagwiritsidwa ntchito pothana ndi udzu womwe wakula kale, makamaka pa ulimi wamaluwa ndi kasamalidwe ka malo.

Ndi mankhwala ati omwe muyenera kugwiritsa ntchito?

Sankhani motengera mitundu ya udzu

Kudziwa mtundu wa udzu womwe muyenera kuuwongolera ndi chinsinsi chosankha mankhwala oyenera. Mitundu yosiyanasiyana ya herbicides imakhala ndi zotsatira zosiyanasiyana pamitundu yosiyanasiyana ya udzu.

Sankhani malinga ndi mtundu wa mbewu

Posankha herbicide, muyenera kuganiziranso mtundu wa mbewu ndi gawo la kukula. Mankhwala ena ophera udzu amatha kukhala ovulaza mbewu zina motero amayenera kusankhidwa mosamala.

Kusankhidwa motengera momwe chilengedwe chikuyendera

Mikhalidwe ya chilengedwe, monga nyengo, mtundu wa nthaka ndi mvula, zingakhudzenso mphamvu ya mankhwala ophera udzu. Izi ziyenera kuganiziridwa posankha mankhwala ophera udzu kuti tipeze zotsatira zabwino.

Mankhwala ophera udzu asanatuluke akulimbikitsidwa

1. Metolachlor

Mawu Oyamba: Metolachlor ndi mankhwala oletsa udzu wosiyanasiyana a mbewu zosiyanasiyana, kuphatikiza chimanga, soya, ndi thonje, omwe amaletsa kukula kwa udzu poletsa kumera kwa mbewu zawo.

Ubwino:

Zothandiza pa osiyanasiyanaudzu wapachaka

Kutalika kwa nthawi yayitali, kupereka udzu kwa miyezi ingapo

Zotetezeka ku mbewu komanso zimagwiritsidwa ntchito kwambiri

S-Metolachlor 960g/L EC

2. Glyphosate

Zofotokozera: Glyphosate ndi mankhwala a herbicide ambiri omwe amagwiritsidwa ntchito m'madera akuluakulu aulimi komanso omwe si aulimi pofuna kuletsa udzu mwamphamvu.

Ubwino:

Broad-spectrum, yogwira ntchito motsutsana ndi udzu wambiri

Nthawi yochepa yotsalira komanso kuwononga chilengedwe

Itha kugwiritsidwa ntchito ngati mankhwala oletsa herbicide pa otsika ndende.

Herbicide Glyphosate 480g/l SL

3. Trifluralin

Zofotokozera: Trifluralin amathira thonje, nyemba, ndiwo zamasamba ndi mbewu zina, makamaka polimbana ndi udzu posokoneza kameredwe ka mbeu ndi kameredwe ka mizu.

Ubwino:

Zabwino zosiyanasiyana pachaka namsongole

Amapanga chotchinga cha udzu chokhalitsa m'nthaka

Ntchito zosiyanasiyana, zotetezeka ku mbewu zambiri

4. Dichlormid

Zofotokozera: Dichlormid imagwiritsidwa ntchito makamaka poletsa udzu m'minda ya chimanga, ndikupondereza kwa namsongole wapachaka komanso wosatha.

Ubwino:

Odzipereka ku minda ya chimanga ndi chidwi kwambiri

Mwamphamvu ziletsa kumera udzu mbewu.

Zotetezeka kwambiri komanso zopanda vuto pakukula kwa chimanga

Mankhwala a Herbicide angomera akulimbikitsidwa

1. Paraquat

Mawu Oyamba: Paraquat ndi mankhwala osasankha pambuyo pomera, oyenera kuchotsa udzu wamitundu yonse, powononga mwachangu ma cell a namsongole, zomwe zimapangitsa kuti namsongole azifa mwachangu.

Ubwino:

Kuletsa udzu mwachangu komanso mogwira mtima

Zothandiza pamitundu yosiyanasiyana ya namsongole, kuphatikiza udzu wosalekeza

Zosinthika ndipo zitha kugwiritsidwa ntchito m'malo osiyanasiyana

Paraquat 20% SL

2. 2,4-D (2,4-dichlorophenoxyacetic acid)

Chiyambi: 2,4-D ndi mankhwala ophera udzu mochedwa nyengo yomwe amagwiritsidwa ntchito kwambiri pa tirigu, chimanga, soya ndi mbewu zina, ndipo amatha kuwononga udzu.

Ubwino:

Zosankha kwambiri, zotetezeka ku mbewu

Zothandiza kwambiri pa udzu wamasamba

Ntchito zosiyanasiyana, zosavuta kugwiritsa ntchito

3. Flumioxazin

Chidule: Flumioxazin ndi mankhwala opha soya, mtedza, thonje ndi mbewu zina zomwe zimapangitsa udzu kufa polepheretsa kaphatikizidwe kake ka chlorophyll.

Ubwino:

Zothandiza pa udzu wambiri, kuphatikizapo udzu wovuta kufika

Kulimbikira, kupereka ulamuliro kwa nthawi yaitali

Yosavuta kugwiritsa ntchito komanso yotetezeka ku mbewu

4. Glufosinate

Zofotokozera: Glufosinate ndi mankhwala osasankha mochedwa kuti awononge udzu m'minda yazipatso, minda yamphesa komanso yopanda mbewu, yomwe imachotsa udzu wambiri komanso mwachangu.

Ubwino:

Kulimbana ndi udzu wochuluka ndi zotsatira zabwino kwambiri

Kusamalira bwino udzu m'minda ya zipatso ndi mphesa

Wofulumira komanso wosinthika

Herbicide Glufosinate Ammonium 200g/l SL

Mankhwala ophera udzuwa ali ndi maubwino ake apadera pamagwiritsidwe ntchito osiyanasiyana, ndipo posankha mwanzeru ndikugwiritsa ntchito, kuwongolera udzu moyenera kumatha kuzindikirika kuti mbeu zisamakula bwino.

Kodi kusankha bwino herbicide?Iyenera kusankhidwa mutamvetsetsa mawonekedwe a namsongole, ngati simukudziwa namsongole, tikukuuzani kuti muyenera kukaonana ndi katswiri kapena kulankhulana nafe, tidzakupatsani upangiri waukatswiri ndikukutumizirani zitsanzo zaulere kwa inu. yesani!