RESULT OF APPLICATION OF HERBICIDES FOR CONTROLLING THE WEEDS IN WHEATFIELD

2015 ◽  
Vol 13 (2) ◽  
pp. 80-83
Author(s):  
T Azzaya ◽  
M Otgonsuren
Keyword(s):  
Chenopodium Album ◽  
Plantago Major ◽  
Polygonum Convolvulus ◽  
Agricultural Sciences ◽  
Weed Distribution

According to weed distribution research outputs have been recorded 13 species belonging to 12 genera of 11 families in the wheat fields of Nart-1 center in Bornuursoum of Tuvaimag, among them, annuals for68.5%, biennials for 14.7% and perennials for 16.8% were estimated. The application of herbicides such as Penizan, Zinger, Lornet, Ovsygen express, Penizan + Ovsygen express and Zinger + Ovsygen for controlling both grassy and dicotyledonous weeds has Chenopodium album L, Polygonum convolvulus L, Paniciummiliaceum L, Avenafatua L, Setariaviridis L, Cannabis ruderalis, Fagopyrumtataricum L, Chenopodiumaristatum L, Salsolacollina (Pall), Amaranthusretro flexus L, SilenerepensPatr, Potentillabifurca L, Geranium siviricum L, Agropyronrepens L, Noneopulla L, C Linariaburiatica (Turcz), Potentillaanserina L, Artemisia sieversiana Willd, Plantago major L, Taraxacumofficinale Wigg, Medicagofalgate L were shown 87.5-100% technical effectiveness.Mongolian Journal of Agricultural Sciences Vol.13(2) 2014: 80-83

RESULT OF HERBICIDES APPLIED AGAINST OF WEEDS IN SOYBEAN FIELD

2015 ◽  
Vol 13 (2) ◽  
pp. 76-79
Author(s):  
O Ariunaa ◽  
M Otgonsuren
Keyword(s):  
Chenopodium Album ◽  
Herbicide Application ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Couch Grass ◽  
Soybean Field ◽  
Small Areas ◽  
Polygonum Convolvulus ◽  
Perennial Weeds ◽  
Field Bindweed

Herbicides, if used properly, are safe and effective in controlling weeds in soybean. The choice of herbicide, however, depends on the predominant weed species and the availability of the herbicide. Chemical control is currently the most widely used control for soybean crops, due to its ease of control and to the small areas planted in Mongolia. In the soybean field the 15species of weeds belonging to 9 families, 12 genus including 62.5 % annual, 37.5%perennial weeds are distributed.The major grassy weeds; Common millet-(Panicummiliaceum L), Couch grass-(Agropyronrepens L), Bristlegrass-(Seteriaviridis L) sp and broadleaved weeds Redroot Pigweed-(Amaranthtusretro flexus),lambs guarters-(Chenopodium album), AristateGoosfoot-(Chenopodiumaristatum L), Black bindweed-(Polygonum convolvulus), Mallow weed-(Malvamochileviensis Down), Field bindweed-(Convolvulus arvensis), Bristhly thistle-(Cirsiumsetosum ), Dwarf bifurcate cinquefoil -(Potentillabifurca), Perennial Sowthisle-(Sonchusarvensis L) weeds have been distributed in the soybean field.In soybean field the Forward herbicide were applied in doses of 1.0-1.2l/ha have reduced the number of weeds by 90.1-91.6%, weight by 59.5-66.1% and super herbicide Gallantsuper applied in doses of 0.45-0.65l/ha have reduced the number of weeds by 91.0-95.0%, weight by 39.5-59.8% while Cobra herbicide applied in doses of 0.45-0.55l/ha used in broadleaved weed distributed field, have reduced the number of weeds by 90.2-94.6% and weight by 42.7-50.7%. The herbicide application increased of yield hectare by 3.6-9.0 center.Mongolian Journal of Agricultural Sciences Vol.13(2) 2014: 76-79

The herbicide effect for controlling the weeds in wheat field

2018 ◽  
Vol 23 (01) ◽  
pp. 26-29
Author(s):  
Azzaya T ◽  
Otgonsuren M
Keyword(s):  
Chenopodium Album ◽  
Amaranthus Retroflexus ◽  
Convolvulus Arvensis ◽  
Wheat Field ◽  
Polygonum Convolvulus ◽  
Vicia Cracca ◽  
Agropyron Repens

Of all reported distributions of weeds of 19 species belonging to 15 genera of 10 families in the wheat planted fields Tsagaannuur soum of Selenge aimag, annuals account for 57.9%, biennials for 10.5% and perennials for 31.5%. The use of herbicide Trimexa, Cliomex 300, Cliodmex plus and Trimexa + Cliodimex plus express for controlling both grassy and dicotyledonous weeds has Agropyron repens L, Panicium miliaceum L, Eragrostis minor Host, Amaranthus retroflexus L, Artemisia sieversiana Willd, Cannabis ruderalis Janisch, Chenopodium album L, Chenopodium aristatum L, Chenopodium acuminatum Willd, Convolvulus arvensis L, Convolvulus gortschakovii Schrenk, Erodium stephanianum Willd, Polygonum  convolvulus L, Geranium  siviricum L, Salsola collina (Pall), Salsola australis R.Br, Noneo pulla L, Malva mohileviensis Downer, Vicia cracca L. 84.4-90.9% technical effectiveness.

scholarly journals Growth of weeds in cereal populations

1972 ◽  
Vol 44 (1) ◽  
pp. 19-28 ◽  
Author(s):  
Leila-Riitta Erviö
Keyword(s):  
Chenopodium Album ◽  
Total Yield ◽  
Abundant Species ◽  
Individual Plant ◽  
Seeding Rate ◽  
Stellaria Media ◽  
Plant Weight ◽  
Seed Rate ◽  
Polygonum Convolvulus ◽  
Cereal Seed

The weeds in this study consisted mainly of Chenopodium album, Stellaria media, Viola arvensis, Polygonum convolvulus, P. aviculare and P. lapathifolium. Increasing cereal seed rates reduced the numbers, individual weights and total yields of the most abundant species, Chenopodium album. The decreases in plant weight and total yield of the weeds were very steep when the cereal seed rate was raised from 25 to 200 kg/ha. Increases in the seeding rate reduced the total yields of weeds rather than their numbers. The effect of the cereal on weeds became apparent as soon as heading of the cereal was complete and was further enhanced by prolonged competition. Added nitrogen raised the weed yields at cereal seed rates of 25—100 kg/ha but reduced them at higher seed rates. Nitrogen also raised the yield and individual plant weight of C. album. Cereal seed rate did not affect the nitrogen, phosphorus, potassium, calcium and magnesium contents of the weeds grown among the crop. Due to larger total weed yields, however, the amounts of these nutrients in the weeds were higher in sparse than in dense cereal populations.

scholarly journals Soil properties affecting weed distribution in spring cereal and vegetable fields

1994 ◽  
Vol 3 (5) ◽  
pp. 497-504 ◽  
Author(s):  
Raimio Erviö ◽  
Seppo Hyvärinen ◽  
Leila-Riitta Erviö ◽  
Jukka Salonen
Keyword(s):  
Soil Properties ◽  
Calcium Concentration ◽  
Chenopodium Album ◽  
Poa Annua ◽  
Organic Soils ◽  
Weed Species ◽  
Weed Distribution ◽  
Mineral Soils ◽  
Ph Level ◽  
Field Plots

The incidence of weed species in 482 cereal and 224 vegetable field plots in southern and central Finland was investigated. The occurrence of the 16 most common weed species was related to soil properties. Chenopodium album L., Lamium spp. L. and Fallopio convolvulus (L.) Löve were more abundant in clay than in coarse mineral or organic soils. Elymus repens (L.) Gould, Erysimum cheiranthoides L., Lapsana communis L., Myosolis arvensis (L.) Hill and Poa annua L. thrived better in coarse than in clay soils. Polygonum lapalhifolium L. and Rumex spp. L. were more abundant in organic than in mineral soils, and Lamium spp. was not found at all in organic soils. Rumex spp., Poa annua and Polygonum lapalhifolium had higher densities at the lowest pH level, < 5.2. Lamium spp. and Myosolis spp. thrived at the highest pH levels. Poa annua and Spergula arvensis were most common in soils where the extractable calcium concentration was below 1000 mg l-1 soil.

scholarly journals Reaction of some weed species to herbicides in sugar beet cultivation

2013 ◽  
Vol 37 (1) ◽  
pp. 63-73 ◽  
Author(s):  
H. Domańska ◽  
L. Leska ◽  
Z. Łęgowiak ◽  
G. Maćkowiak
Keyword(s):  
Sugar Beet ◽  
Chenopodium Album ◽  
Climatic Conditions ◽  
Weed Species ◽  
Sugar Beets ◽  
Polygonum Convolvulus ◽  
Herbicide Activity

In the years 1975-1980, on the Experimental Farm Chylice fields of the Warsaw Agricultural University, herbicide activity was evaluated on commonly appearing weed species in sugar beet cultivation. The most frequent weeds were: <i>Chenopodium album, Echinochloa crus-galli, Polygonum convolvulus</i> and <i>Polygonum lapatifolium</i>. Preemergence use of chloridazon and furthermore postemergence use of phenmedipham were most effective in control. Metolachlor or bentiocarb mixed with metamitron and chloridazon were effective too. It was found that 70% control of <i>Chenopodium album</i> increased crops of sugar beets by about 25% on the basis of two years experiments (1979-1980), differing in quantity and periods of rainfall, a visible dependence of herbicide effectiveness on climatic conditions was demonstrated.

scholarly journals Uptake of more important mineral components by common field weeds on loess soils

2013 ◽  
Vol 39 (1) ◽  
pp. 129-141 ◽  
Author(s):  
Leszek Malicki ◽  
Czesława Berbeciowa
Keyword(s):  
Spring Barley ◽  
Chenopodium Album ◽  
Cultivated Plants ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Stellaria Media ◽  
Sugar Beets ◽  
Polygonum Convolvulus ◽  
Mineral Components ◽  
Sonchus Arvensis

We have determined the contents of N, P, K, Ca, Mg, Na, Fe, Cu, Mn and Zn in winter wheat, spring barley, sugar beets and winter rape, as well as in the most common weed species infesting these crops. It was established that the percentage of mineral components in the dry matter of the majority of weeds is higher than in that of the cultivated plants. The most dangerous weed species competing with plants for the investigated nutrients were: <i>Chenopodium album, Cirsium arvense, Convolvulus arvensis, Polygonum convolvulus, Sonchus arvensis</i> and <i>Stellaria media</i>.

scholarly journals Syysvehnän viljelystä ja sen vaikutuksesta rikkaruohoihin Suomessa

1983 ◽  
Vol 55 (5) ◽  
pp. 385-423
Author(s):  
Mikko Raatikainen ◽  
Terttu Raatikainen
Keyword(s):  
Chenopodium Album ◽  
Stellaria Media ◽  
Polygonum Aviculare ◽  
Erysimum Cheiranthoides ◽  
Polygonum Convolvulus ◽  
Myosotis Arvensis ◽  
Agropyron Repens

Koko Suomen syysvehnäpelloista tutkittiin v. 1972-1974 otannalla 0.8 %. Tällöin todettiin, että syysvehnää viljeltiin yleensä suurilla tiloilla, vanhoilla pelloilla, savimailla, suurilla lohkoilla ja lähellä talouskeskusta. Syysvehnälohkoilla oli käytetty ennen syysvehnän viljelyä hyvin usein leikkuupuimuria ja herbisidejä. Esikasvina oli tavallisimmin syysvehnä tai muu vilja, vaikka neuvonta vastusti monokulttuuria. Peruslannoituksessa noudatettiin yleensä ohjeita, jopa ylitettiinkin suositellut käyttömäärät. Lajikesuosituksia yleensä noudatettiin ja uudet lajikkeet otettiin käyttöön muutamassa vuodessa. Kasvinsuojelu, varsinkin peittaus laiminlyötiin usein. Rikkaruohoruiskutuksissa olisi tullut käyttää useammin seosvalmisteita ja oikeata ruiskutusaikaa. Kylvösiemenmäärä oli usein ylisuuri ja kylvökausi liian pitkä, mistä aiheutui yksittäisillä tiloilla haittoja ja sadonmenetyksiä. Valistuneimpien viljelijöiden tiloilla neuvontaa seurattiin ja noudatettiinkin melko nopeasti, mutta osa viljeli perinnäisiä tapojen noudattaen. Helppotajuinen neuvonta otettiin vastaan nopeammin kuin vaikeatajuinen. Neuvonnassa tulisi kiinnittää enemmän huomiota tilakohtaiseen neuvontaan. Syysvehnälohkoilta tavattiin 130 rikkaruoholajia, joista 26 esiintyi yli 16 %:lla peltolohkoista. Rikkaruohoja oli keskimäärin 257 yksilöä tai versoa/ m2. Tiheimmässä kasvoivat syysyksivuotisista Viola arvensis, Matricaria spp., Stellaria media, Lapsana communis ja Myosotis arvensis, kevätyksivuotisista Galeopsis spp., Chenopodium album, Erysimum cheiranthoides, Polygonum aviculare, Myosurus minimus, Gnaphalium uliginosum ja Polygonum convolvulus, ja monivuotisista Agropyron repens. Rikkaruohokoostumus poikkesi ruispeltojen rikkaruohokoostumuksesta joten neuvonnan tulisi kohdistua viljelykasvikohtaiseen neuvontaan. Rikkaruohojen tiheyteen vaikuttivat mm. lohkon etäisyys talouskeskuksesta, lohkon ikä peltona, maalaji, maaperän kosteus, leikkuupuintikertojen määrä, herbisidikäsittelyjen määrä, esikasvi, kylvöaika, kasvukauden vaihe ja viljan peittävyys. Tekijät eivät aina vaikuttaneet suoranaisesti vaan olivat todellisten tekijöiden indikaattoreita.

scholarly journals „Flax specialists”-weed species extinct in Poland?

2010 ◽  
Vol 61 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Krzysztof Heller
Keyword(s):  
Chenopodium Album ◽  
Weed Species ◽  
Stellaria Media ◽  
Fibre Flax ◽  
The Past ◽  
Thlaspi Arvense ◽  
Polygonum Convolvulus ◽  
Root Crops ◽  
Weed Communities ◽  
Made In

„Flax specialists”-weed species extinct in Poland? The results of a research on segetal weed communities in fibre flax in Poland are presented, with respect to different regions of cultivation, and changes in the level of infestation during the past forty years. Observations on composition and abundance of weed infestations were made in fields in six experimental farms at the Institute of Natural Fibres and Medicinal Plants. The observations conducted in the period 1967-2008 did not show the occurrence of weed species from the group of so-called "flax specialists": Lolium remotum Schrank, Spergula arvensis L. subsp. maxima (Weiche) O. Schwarz, Camelina alyssum (Mill.) Thell. and Cuscuta epilinum Weihe Ex Boenn. In Poland, weed populations in fibre flax consist of species typical for cereals and root crops: Chenopodium album L., Polygonum convolvulus L., Viola arvensis Murr., Stellaria media Vill., Lamium amplexicaule L., Thlaspi arvense L., Elymus repens (L.) Gould, and Polygonum nodosum Pers.

scholarly journals Young peacock-shaped plants need protection

2020 ◽  
pp. 21-23
Author(s):  
G. Nychkaliuk
Keyword(s):  
Field Experiments ◽  
Negative Impact ◽  
Chenopodium Album ◽  
Bioenergy Crop ◽  
Paulownia Tomentosa ◽  
Protection Measures ◽  
Polygonum Convolvulus ◽  
Solanum Nigrum L ◽  
Setaria Glauca ◽  
Manual Weeding

Goal. Paulownia felines — Paulownia tomentosa L., a promising bioenergy crop for our country. In the early stages of organogenesis (juvenile and immature), young plants of the peacock sprout easily suppress weeds. Therefore, young plantations of such a promising bioenergy crop need reliable and effective protection against the adverse effects of weeds. Method. Weeding processes for young peacock plantations in the small field experiments were conducted in 2018—2019. on the experimental lands of the Yaltushk SSS IBEK and the Central Bank of NAAS The area of the plots is 36 m2, the area of the plot is 25 m2. Repeat studies — 4 times. Placement of sites is regular in two tiers. Seeds and young plants (seedlings) of Clone 112 were used for growing on the plots. Results and Discussion. Contamination of plantations was mixed. The records, carried out on 01.06, recorded the presence of seedlings of Echinochloa crus-galli (L.) Pal Beauv, Setaria glauca (L.) Pal.Beauv, Chenopodium album L., Sinapis arvensis L., Thlaspy arvense L., Polygonum scabrum Moench., mustard beetle, Polygonum convolvulus L, Solanum nigrum L. The number of weeds averaged 89.5 pcs/m2. The largest number of seedlings was recorded in millet rooster 12.4pcs/m2, mouse gray — 10.3 pcs/m2, white swans — 8.7 pcs/m2, bear­ded birch — 7.3 pcs/ m2, talaban field — 7.1 pcs/m2. By the third decade of August, their number had increased to 134.0 pieces/ m2. Conclusions. Under the conditions of co-vegetation of young peacock-planted plants with weeds, the height of their plants by the second decade of September averaged 23.6.cm. The height of crop plants that vegetated without adversely affecting the presence of weed plantations (4 consecutive manual weeding) averaged 63.8 cm or 2.7 times greater. Such a negative impact requires the implementation of protection measures for young plants.

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