Lokacin da ya dace don shafa maganin ciyawa shine bayan karfe 6 na yamma.Saboda ƙarancin zafin jiki da zafi mai zafi a wannan lokacin, ruwan zai daɗe a kan ganyen ciyawa, kuma ciyawa na iya cika kayan aikin ciyawa.Yana da amfani don inganta tasirin weeding, kuma a lokaci guda, ana iya inganta lafiyar masarar masara, kuma phytotoxicity ba shi da sauƙin faruwa.

Yaushe za a yi amfani da herbicides bayan shuka masara?

1. Saboda an fesa maganin ciyawa bayan fitowar, yana ɗaukar sa'o'i 2-6 don tsarin sha.A cikin waɗannan sa'o'i 2-6, ko tasirin herbicide ya dace yana da alaƙa da yanayin zafi da iska.Fesa da safe, ko tsakar rana da kuma da rana idan yanayi ya bushe.

2. Saboda tsananin zafin jiki, haske mai ƙarfi, da saurin jujjuyawar maganin ruwa, maganin ruwa zai ƙafe jim kaɗan bayan fesa, ta yadda adadin ciyawa da ke shiga cikin ciyawar ya yi ƙanƙanta, wanda zai haifar da ƙarancin sha, wanda hakan zai shafi herbicidal sakamako.Lokacin fesa a lokacin babban zafin jiki da fari, tsire-tsire na masara kuma suna da haɗari ga phytotoxicity.

3. Lokacin da ya dace don feshi shine bayan karfe 6 na yamma, domin a wannan lokacin, zafin jiki ya ragu, zafi yana da yawa, ruwan ya dade a kan ganyen ciyawa, kuma ciyawa na iya sha sosai. sinadaran herbicide., Yana da kyau don tabbatar da tasirin weeding, kuma magungunan maraice na iya inganta lafiyar masarar masara, kuma ba shi da sauƙi don haifar da phytotoxicity.

4. Tunda yawancin magungunan ciyawa bayan fitowar a masara sune nicosulfuron-methyl, wasu nau'ikan masara suna kula da wannan bangaren kuma suna da saurin kamuwa da phytotoxicity, don haka bai dace da gonakin masara dasa masara mai zaki, masara waxy, jerin Denghai da sauran su ba. iri da za a fesa , don kauce wa phytotoxicity, don sababbin nau'in masara, wajibi ne don gwadawa sannan kuma inganta.

Yaya ake amfani da maganin herbicides bayan fitowar a cikin masara?

1. Dubi girman ciyawa

(1) Lokacin da ake fesa maganin ciyawa bayan shukar masara, manoma da yawa suna tunanin cewa ƙarami ciyawar za ta yi ƙasa da tsayin daka kuma ana samun sauƙin kashe ciyawa, amma ba haka lamarin yake ba.

(2) Domin ciyawa ta yi ƙanƙara, babu wurin magani, kuma tasirin ciyawar bai dace ba.Mafi kyawun shekarun ciyawa shine ganye 2 da zuciya 1 zuwa ganye 4 da zuciya 1.A wannan lokacin, ciyawa suna da wani yanki na aikace-aikace.Juriyar ciyawa ba ta da girma, don haka tasirin weeding ya fi kyau.

2. Irin masara

Saboda mafi yawan maganin ciyawa bayan fitowar masara sune nicosulfuron-methyl, wasu nau'ikan masara suna kula da wannan bangaren kuma suna da saurin kamuwa da phytotoxicity, don haka ba zai yuwu a fesa filayen masara ba inda ake shuka masara mai zaki, masara waxy, jerin Denghai da sauran iri.Don samar da phytotoxicity, sabon nau'in masara yana buƙatar gwadawa kafin gabatarwa.

3. Matsalar hada maganin kashe kwari

Organophosphorus kwari bai kamata a fesa na kwanaki 7 kafin da kuma bayan spraying da seedlings, in ba haka ba yana da sauki don haifar da phytotoxicity, amma za a iya haxa shi da pyrethroid kwari.Maganin ya cika zuciya.

4. Juriya na ciyawa kanta

A cikin 'yan shekarun nan, an inganta ikon ciyawa don tsayayya da damuwa.Don guje wa zubar da ruwa mai yawa a cikin jiki, weeds ba su da ƙarfi da ƙarfi, amma suna girma launin toka da gajere, kuma ainihin shekarun ciyawa ba ƙananan ba ne.Mafi yawa ana rufe ciyawa da ƙaramin farin fulawa a duk faɗin jiki don rage ƙawancewar ruwa.