Kev saib xyuas cov nyom - kev xaiv cov tshuaj tua kab kom raug

1. Txhua hom tshuaj tua nroj tsuag muaj qee yam kev tswj cov nroj tsuag, thiab qee cov kev tswj cov nroj tsuag yuav nqaim heev. Piv txwv li, dimethoate muaj txiaj ntsig zoo rau kev tswj cov nroj tsuag sowweed thiab cov noob rapeseed qus, tab sis cov txiaj ntsig ntawm kev tswj cov nroj tsuag npua tsis pom tseeb, lossis nws tsis zoo heev.

2. Cov cheeb tsam hauv zos yuav tsum xaiv cov tshuaj tua kab zoo raws li cov hom nroj tsuag uas pom ntau tshaj plaws hauv thaj chaw. Caokuojing, Kuomie, Hekuojing, thiab lwm yam zoo rau cov nroj tsuag nplooj dav, thaum metsulfuron-methyl thiab chlorsulfuron-methyl (tam sim no txwv) muaj lub sijhawm ntev dhau thiab muaj kev cuam tshuam loj heev rau cov av thiab ib puag ncig. Yog tias cov nyom nplooj dav (cov noob) raug cog tom qab hloov pauv, kev puas tsuaj loj heev ntawm cov tshuaj tua kab yuav tshwm sim. Thaum muaj ntau cov nyom hauv cov nyom, kev siv Caohejing, Helike, Hekejing, thiab lwm yam muaj cov txiaj ntsig zoo tshaj plaws.

3. Xaiv cov tshuaj tua kab uas tsim nyog raws li cov nyom sib txawv. Raws li cov qauv kev faib tawm sib txawv, cov nyom tuaj yeem muab faib ua cov nyom monocotyledonous thiab cov nyom dicotyledonous, sov-cov nyom avthiab cov nyom hauv av txias, thiab lwm yam. Cov nyom sib txawv muaj kev tiv thaiv tshuaj tua kab sib txawv. Peb twb paub lawm tias qhov kev txiav txim ntawm kev tiv thaiv tshuaj ntawm cov nyom laus los ntawm loj mus rau me yog: Zoysia> Bermuda nyom> Bluegrass> Seashore paspalum> Ryegrass> Tall fescue> Bentgrass. Piv txwv li, siv Grass-Kuangjing los tswj cov nyom dav hauv Gramineae nyom yog qhov muaj kev nyab xeeb rau cov nyom; siv Grass-Kuangjing los kho cov nyom dav leguminous yog qhov muaj kev nyab xeeb; siv Grass-Kuangjing los tswj cov nyom Gramineae hauv cov nyom dav yog qhov muaj kev nyab xeeb rau cov nyom; siv Grass-Kuangjing los tswj cov nyom dav hauv Gramineae nyom yog qhov muaj kev nyab xeeb, thiab nws kuj tseem tuaj yeem tshem tawm ntau yam nyom phem; Mesa-Kuang tuaj yeem tswj Cyperus rotundus.

4. Cov nyom nyom muaj kev tiv thaiv sib txawv rau cov tshuaj tua kab ntawm cov theem loj hlob sib txawv.Cov nyom cog rau hauv avsiv tau cov tshuaj tua kab thaum lawv loj hlob thiab theem loj hlob. Rau cov nyom uas cog ncaj qha, thaum siv cov tshuaj tua kab ua ntej cog, yuav tsum xav txog lub sijhawm seem, txwv tsis pub nws yuav cuam tshuam rau qhov tshwm sim ntawm cov noob nyom. Kev siv cov tshuaj tua kab rau kev tua nyom kaw ua ntej cog tom qab cog nyom yuav tsum muaj kev nyab xeeb siab ntawm cov tshuaj tua kab. Rau cov nyom uas cog ncaj qha tom qab theem 5-nplooj, ntau cov tshuaj tua kab yog qhov tsim nyog.

5. Kev xaiv cov tshuaj tua kab rau ntau theem kev loj hlob ntawm cov nroj tsuag kuj yog qhov tshwj xeeb heev. Ua ntej cov nroj tsuag muaj 5 nplooj, qhov kev tiv thaiv tsis muaj zog, qhov koob tshuaj me me thiab cov nyhuv zoo. Tom qab 7 nplooj, qhov koob tshuaj nce ntxiv, cov nyhuv txo qis, thiab qhov kev nyab xeeb rau cov nyom txo qis; nyob rau theem kawg ntawm kev loj hlob ntawm cov nroj tsuag, tshwj xeeb tshaj yog tom qab cov nroj tsuag tso noob, cov nyhuv tshuaj tua kab me dua.

6. Lwm yam tseem ceeb: xws li kev hloov pauv ntawm cov tshuaj tua kab, qhov cuam tshuam rau lwm cov paj hauv ib puag ncig; seb cov tshuaj tua kab seem puas yuav cuam tshuam rau cov qoob loo tom ntej ntawm cov nroj tsuag hauv vaj; cov kev cai tiv thaiv ib puag ncig, thiab lwm yam. Hauv cov chaw uas tib neeg, tshwj xeeb tshaj yog cov menyuam yaus, feem ntau ua si, xws li chaw ua si golf, chaw ua si, cov nyom hauv tiaj ua si, cov nyom ntsuab, thiab lwm yam, yuav tsum siv cov tshuaj tua kab uas tsis muaj tshuaj lom, thiab tus naj npawb ntawm kev txau tshuaj tua kab yuav tsum tsawg li tsawg tau.