Yuav Ua Li Cas Kills Signalgrass: Tshem Tawm Cov Nroj Tsuag Nroj Tsuag

Cov txheej txheem:

Yuav Ua Li Cas Kills Signalgrass: Tshem Tawm Cov Nroj Tsuag Nroj Tsuag
Yuav Ua Li Cas Kills Signalgrass: Tshem Tawm Cov Nroj Tsuag Nroj Tsuag

Video: Yuav Ua Li Cas Kills Signalgrass: Tshem Tawm Cov Nroj Tsuag Nroj Tsuag

Video: Yuav Ua Li Cas Kills Signalgrass: Tshem Tawm Cov Nroj Tsuag Nroj Tsuag
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Hlis ntuj nqeg
Anonim

Broadleaf signalgrass (Brachiaria platyphylla - syn. Urochloa platyphylla) yog ib lub caij sov sov uas tshwm sim hauv kwj dej, thaj chaw cuam tshuam, thiab teb. Nws muaj qhov zoo li zoo li cov crabgrass loj, tab sis qhov tseeb yog ib hom kab sib txawv uas ze li qhov cuam tshuam. Signalgrass weeds yog qhov teeb meem zoo li no hauv thaj chaw qoob loo uas lawv muaj tuaj yeem txo cov pob kws yields los ntawm 25 feem pua.

Kev tshem tawm cov teeb liab cov nroj tsuag hauv cov xwm txheej zoo li no ua rau muaj txiaj ntsig kev lag luam, tab sis nws tseem ceeb hauv thaj chaw hauv tsev thiab. Qhov no yog vim hais tias broadleaf signalgrass paj spikes muaj ob mus rau rau lub noob puv spikelets thiab kis tau sai.

Qhia txog Broadleaf Signalgrass

Signalgrass muaj dav, tiaj nplooj nrog cov plaub hau zoo raws li stems thiab ligules. Cov nplooj tsis muaj plaub hau, tsis zoo li crabgrass, thiab feem ntau prostrate tab sis qee zaus tau 3 feet (1 m.) siab. Cov hniav yog dov nrog me me ntawm cov plaub hau ntawm cov nodes, uas muaj peev xwm hauv paus thiab kis vegetatively.

Cov noob taub hau pib txij Lub Xya Hli mus txog Lub Cuaj Hli thiab muaj ob mus rau rau cov noob coated spikelets. Cov no tsim ntau cov noob uas thauj tog rau nkoj thiab sprout yooj yim. Kev tswj cov teeb liab tuaj yeem ua tiav nrog kev tilling tas li tab sis qhov tsawg tshaj li tus neeg ua haujlwm ceev faj yuav pom cov thaj ua rau thaj tsam hnyav.nce hauv av tsis ua hauj lwm.

Yuav Ua Li Cas Ua Dab Tsi?

Signalgrass weeds tsis tsim los ua yub yog tias tsis tu ncua tilled rau hauv av, tab sis nyob rau hauv zoo-tsim sawv ntsug tshuaj tua kab yog tsim nyog. Cov nroj tsuag tau pom tias txo qis cov pob kws ntau lawm, uas txhais tau hais tias nws yog qhov tsim nyog nyob rau hauv cov xwm txheej qoob loo kom paub yuav ua li cas thiab tua cov signalgrass.

Yuav luag txhua cov nroj tsuag nyom muaj kev tsim kho sai thiab sib kis. Cov noob taub hau uas flare los ntawm lub hauv paus foliage dais yooj yim dispersed cov noob uas txuas rau tsiaj thiab pant ob txhais ceg, cling rau machinery, thiab tshuab cua qhuav rau hauv av zoo. Ib thaj chaw ntawm signalgrass nroj tuaj yeem kis thoob plaws toj roob hauv pes hauv ib lub caij uas tsis muaj kev cuam tshuam. Cov hauv paus hniav dav tuaj yeem tswj tau yooj yim, ib yam nkaus, rau qhov zoo tshaj plaws, khawb tawm cov nroj tsuag loj dua li rub tes.

Signalgrass Control Methods

Kev tshem tawm cov signalgrass yuav tsum tau ua ob ntu. Rau cov organic gardener, tes rub yog txoj kev xav tau. Kev tilling tsis tu ncua kuj tseem yuav ua haujlwm hauv cov kab mob me.

Rau daim ntawv thov tshuaj tua kab mob, lub sijhawm yog txhua yam. Siv cov tshuaj tua kab tsim nyog thaum ntxov nyob rau lub caij nplooj ntoos hlav ua ntej cov nroj tsuag tau matured tag nrho. Nws yog ib qho tseem ceeb kom ntes lawv ua ntej lawv tau tsim cov noob taub hau los yog hauv paus ntawm lub internodes. Cov tshuaj tua kab mob tshwm sim tom qab tau pom zoo thiab yuav tsum tau siv ntawm tus neeg tsim khoom tau pom zoo tus nqi.

Teb thiab thaj chaw uas tsis muaj kev tswj hwm uas tau khiav roughshod nrog cov nroj tsuag yuav xav tau ob qhov kev tawm tsam. Siv cov tshuaj tua kab mob ua ntej tshwm sim thaum ntxov caij nplooj ntoos hlav tuaseedling weeds and then follow up with a post-emergent herbicide that is systemic.

Note: Kev tswj tshuaj yuav tsum tsuas yog siv los ua qhov kawg nkaus xwb, vim tias cov txheej txheem organic muaj kev nyab xeeb dua thiab ntau tus phooj ywg ib puag ncig.

Pom zoo: