Experiment on Weed Species and Pesticide Selection in Potato Fields in the Quanzhou Area
To clarify the types of weeds in potato fields in the Quanzhou area and the appropriate herbicides for control,a systematic investigation was conducted on the types of weeds in potato fields in this area.A randomized block design was used to study the weed control effects of four pre-seedling herbicides and two post-seedling herbicides on potato Quanshu 5.The results revealed that there are more than 30 types of weeds in potato fields in the Quanzhou area,among which harmful broad-leaved weeds include Agastachys rugosa,Amaranthus spinosum,Polygonum vulgare,Polygonum multiflorum,Ar-temisia glutinosa,Commelina communis,Pinus bipinnata,Sargassum hybridum,Chenopodium,Rhizoma scopariae,and Poly-gonum multiflorum;common broad-leaved weeds include amaranth,lotus seed grass,lilac Polygonum,Shepherd's purse,anem-one,and sunflower;common grasses in the Gramineae family include dogtooth root and horsetail;and common weeds in the Cyperaceae family include Cyperus fragrans and Cyperus iria.The 45-day relative fresh weight control effects of 60% butachlor and 48% germicidal herbicides before seedling were 75.85% and 73.67%,respectively.The 45-day relative fresh weight control effect on the post-seedling herbicide 25% sulfur on methyl water dispersible granules was 89.3% .In terms of the comprehensive control effect of broad-leaved weeds and grassy weeds,the 25% sulfosulfuron methyl water dispersible granule agent is the best;60% butachlor and 48% germicin perform well and can be used as herbicides for potato fields in the Quanzhou area.
potatoweedsherbicideprevention and control technology
万方数据
维普
