tambayabg

Cutarwa da sarrafa ƙwayar dankalin turawa

Dankali, alkama, shinkafa, da masara a dunkule an san su da muhimman amfanin gona guda hudu na abinci a duniya, kuma suna taka muhimmiyar rawa wajen bunkasa tattalin arzikin kasar Sin. Dankali, wanda kuma ake kira dankali, kayan lambu ne na yau da kullun a rayuwarmu. Ana iya yin su cikin abinci masu yawa. Sun ƙunshi ƙarin ƙimar sinadirai fiye da sauran 'ya'yan itatuwa da kayan marmari. Suna da wadata musamman a cikin sitaci, ma'adanai da furotin. Suna da "apple karkashin kasa". Take. Amma a harkar noman dankalin turawa, manoma kan gamu da kwari da cututtuka iri-iri, wadanda ke yin illa ga amfanin noman. A cikin lokacin dumi da ɗanɗano, abubuwan da ke faruwa na ƙwayar dankalin turawa sun fi girma. Don haka, menene alamun ciwon ganyen dankalin turawa? Yadda za a hana shi?烤红薯

Alamun haɗari Mafi yawa suna lalata ganye, yawancin su shine cutar ta farko akan ƙananan ganye a tsakiyar da ƙarshen matakan girma. Ganyen dankalin turawa sun kamu da cutar, suna farawa daga kusa da gefen ganye ko tip, a farkon matakin farko, an kafa wuraren koren launin ruwan kasa-launin ruwan kasa, sannan a hankali suna haɓaka zuwa kusan zagaye zuwa “V” mai launin toka-launin toka-launin ruwan kasa manyan wuraren necrotic, tare da ƙirar zobe mara kyau, kuma gefuna na waje na cututtukan cututtukan sau da yawa suna Chlorescence da launin rawaya, kuma a ƙarshe cutar ta zama launin ruwan kasa. Ana iya samar da aibobi a wuraren da ba su da lafiya, wato, conidia na ƙwayoyin cuta. Wani lokaci yana iya cutar da mai tushe da itacen inabi, yana samar da aibobi masu launin toka-launin toka-launin ruwan kasa, kuma daga baya zai iya haifar da ƙananan aibobi masu launin ruwan kasa a ɓangaren marasa lafiya.图虫创意-样图-1055090456222367780

Halin abin da ya faru Blight leaf dankali yana haifar da kamuwa da naman gwari mara kyau na naman gwari Phoma vulgaris. Wannan ƙwayar cuta ta mamaye ƙasa tare da sclerotium ko hyphae tare da kyallen takarda marasa lafiya, kuma yana iya jurewa akan sauran ragowar runduna. Lokacin da yanayi a cikin shekara mai zuwa ya dace, ruwan sama yana watsar da ƙwayoyin cuta na ƙasa akan ganye ko mai tushe don haifar da kamuwa da cuta ta farko. Bayan cutar ta faru, ana samar da sclerotia ko condia a cikin sashin marasa lafiya. Ciwon cututtuka da aka yi ta fama da shi tare da taimakon ruwan sama na sa cutar ta yaɗu. Dumi da zafi mai zafi suna da tasiri ga faruwa da yaduwar cutar. Cutar ta fi tsanani a cikin filaye da ƙasa mara kyau, kulawa mai yawa, dasa shuki, da raunin shuka.

Hanyoyi na rigakafi da sarrafawa Matakan aikin gona: zabar filaye masu kyau don dasa shuki, ƙware da yawan shukar da ya dace; kara yawan takin gargajiya, kuma a yi amfani da takin mai magani na phosphorus da potassium yadda ya kamata; ƙarfafa gudanarwa a lokacin lokacin girma, shayarwa da ɗorawa a cikin lokaci, don hana tsufa na shuka; kan lokaci bayan girbi Cire gawarwakin marasa lafiya a cikin filin kuma a lalata su ta hanyar tsakiya.图虫创意-样图-912739150989885627

Gudanar da sinadaran: rigakafin feshi da magani a farkon matakin cutar. A mataki na farko na cutar, za ka iya zaɓar yin amfani da 70% thiophanate-methyl wettable foda 600 sau ruwa, ko 70% mancozeb WP 600 sau ruwa, ko 50% iprodione WP 1200 Rawanin ruwa + 50% Dibendazim wettable foda sau 500 na ruwa, ko 50% ruwa, ko 1200. 70% Mancozeb WP 800 sau ruwa, ko 560g/L Azoxybacter · Lokacin 800-1200 sau na ruwa na Junqing mai dakatarwa, 5% chlorothalonil foda 1kg-2kg/mu, ko 5% kasugamycin · Copper hydroxide foda kuma za a iya amfani da shi a cikin wuraren da za a iya amfani da shi don kare 1kg / mu.


Lokacin aikawa: Oktoba-15-2021