Izifo ze-Corn Leaf Spot ziqala ukwenzeka. Izinyathelo ezilandelayo zingathathwa ukuvikela nokulawula:
1.Khetha izinhlobo ezingamelana nazo.
2.Remove izinsalela ezinesifo endle, zilima ngokujulile, futhi zingcwaba amagciwane.
3.Stretthen Field Management, yamukele ukuhlwanyelwa kwangaphambi kwesikhathi, ukutshala okusondelene kakhulu, yandisa ukusetshenziswa komanyolo we-organic, ukunisela okufika ngesikhathi, ukunisela okufika ngesikhathi, ukudonsa okufika ngesikhathi ngemuva komanyolo we-phosphorus kanye ne-potassium. Ngaphezu kwalokho, akukho kulima nokuhlaselwa okuqhubekayo kuzokhulisa ukwenzeka kwezifo
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1, iqabunga elimatheka
Izimo zokuhambisa ze-pathogen kanye nezimo zokuqala:
I-pathogen of Maize Leaf Spot overwinars ngokufaka ama-hyphae noma ama-conidium kwizicubu ezinesifo. Ukwanda kwesifo se-Maize Leaf Spot akuhlobene nokumelana kwesifo kwezinhlobo zommbila, kodwa futhi kuhlobene kakhulu nezimo zemvelo. Lapho amazinga okushisa efinyelela ku-20 ℃ -25 ℃ futhi umswakama ohlobene ufinyelela ngaphezu kwama-90%, kuyazuzisa ukuthuthukiswa kwezifo. Uma kungazelelwe kucace ngemuva kwezinsuku eziningi zemvula ezilandelanayo, kungadala ukuqubuka okukhulu kwe-vitiligo. Ngaphezu kwalokho, ukusula okungazelelwe ezinsukwini zenkungu kungaholela ekuqubukeni kokuwohloka kwama-macular.
Ukuvimbela Amakhemikhali Nokulawula:
Ama-fungicides afana ne-azoxystrobin kanye ne-propiconazole azoxystrobin angasetshenziswa ukuvikela nokulawula isifo samaqabunga ommbila.
Uma isikhathi sokukhula kommbila sekwephuze, umanyolo wamaqabunga we-monopotassium phosphate ekhuthaza ukuvuthwa kusenesikhathi nawo kungafakwa isikhunta futhi sisetshenziswe ngasikhathi sinye.
2, Isifo Sconona Spot
Kwenzeka ngamaqabunga ommbila, amaqabunga amaqabunga, kanye neziqu, kuqala kwenzeka esiqongweni samaqabunga aphezulu, ngezindawo eziningi zezifo lapho kuhlangana khona amaqabunga amaqabunga. Ekuqaleni, yindawo encane ephuzi noma ebomvu emnyama, kanye namabala ezifweni ajikeleze noma alliptical to linear. Izicubu zamaqabunga eduze kwe-prorrion zivame ukubomvu, futhi izindawo ezincane zezifo zivame ukuhlangana ndawonye. Ezimweni ezinzima, izingxenye eziningana noma wonke amaqabunga ambozwe ngezifo zezifo, kanti amabala amakhulu ansundu avele kuma-sheath amaqabunga nemithambo, esigabeni sendawo enesifo, izicubu zamahlamvu ezigungqiwe Besisesimweni esifile, futhi i-brown powder (i-sporangium ye-pathogen) yahlakazeka. Iqabunga eligulayo lahlukaniswa ngokwengxenye, futhi imithambo yamaqabunga kanye nenqwaba yemithambo yahlala njengama-filaments. Uma izinga lokushisa liphezulu, umswakama uphakeme, futhi kunezinsuku eziningi zemvula ngoJulayi nango-Agasti. Kuyasiza ekungeneni kwesifo. Ezindaweni ezinekhwalithi yenhlabathi empofu, amaqabunga aphenduka aphuzi nezifo zenzeka ngokungathi sína. Ezindaweni ezinomhlabathi wenhlabathi ophakeme, ummbila uqinile, amaqabunga aluhlaza omnyama, nezifo zimnene noma zingekho. Ngokuvamile, lesi sifo sithambekele ukuba senzeke lapho kunamaqabunga angama-8-10 e-corn, futhi ngokuvamile awenzeki futhi ngemuva kwamaqabunga ayi-12 emmbini.
Ukuvimbela Amakhemikhali Nokulawula:
Ukuvinjwa Kwasekuqaleni.Ukugcina iqabunga leqabunga le-4-5 lommbila, ufafaze ama-40 ~ 60g we-12.5% we-IMIDAZLE FETETAble Powder noma i-20 ~ 30ml ka-25% ama-25% ama-tebuconazole ukumiswa kwamanzi nge-30kg yamanzi nge-acre ngayinye, futhi angavimbi nje Isifo se-Maize Spot Spot.Ukuvela kwe-Brown Spot nezinye izifo ezithuthukile fungalisa kungalawulwa ngezikhathi ezingama-800 ezingama-25% IPyrazoLidinoxyStrobin, engathuthukisa ukumelana kwengcindezi kwesitshalo uqobo.
, Ukwenzeka kwe-brown spot nezinye izifo ezithuthukile fungal kungalawulwa izikhathi ezingama-800 ze-25% pirazolidinoxystrobin, ezingathuthukisa ukumelana kwengcindezi kwesitshalo uqobo.
3.Northern Anthrax
Ukuhanjiswa kwePathOgen: Kungatholwa ngokugeleza komoya kanye nembewu, kepha ngokuvamile izinga lokuthwala imbewu liphansi, ikakhulukazi ngoba ama-pathogen spores ngemuva kokudluliselwa kwezithombo ngemuva kokutheleleka komoya kanye nemvula yokutheleleka komoya. Izindawo zezifo zingabonakala ezinsukwini ezingama-4-10 ngemuva kokuthi amaqabunga athelelekile, futhi kukhiqizwa ama-conidium.
Ukulawulwa kwamakhemikhali: Uma kukhona izifo, futhi kunesimo esikhulayo, kuyadingeka ukufiphala ukuvimbela ngesikhathi, futhi ngaphambi kokusetshenziswa kwesidakamizwa ngangokunokwenzeka, i-phenoxylozozole, I-Pyrimidin, syholamycetin, i-Pyrazole ether ester, njll.
Isikhathi sePosi: Aug-01-2023