1 , learn to distinguish between several types of weeds, and generally does not commit an error in principle .
2 , the distinction between the young plateau of lawn grass , which should be used on turf herbicide .
3 , the choice of herbicide to be exact right path . Lawn weeds and weeds within the field is not the same . Farmers' fields in the weeds , because perennial farming, rarely perennial weed . Weed in the field of the main places that gutter , street , canal head , farm , rather than crop land , this must be fully recognized. The lawn, nursery , the lack of deep plowing conditions , perennial weed often occurs serious . We should recognize , lawn weed weed weed is much more complicated than that .garden sprayers Farmland weed can "fool " and we can not use the lawn , " fool" , at least just contact herbicide lawn or nursery not. But in the first year of the most vicious weeds removed through various methods after the second year was much better .
We are currently used herbicides in controlling weeds are basically annual weeds . Perennial weeds are perennial, deep roots , are generally no longer present within the range of weed herbicide . But you can take special measures individually vicious weeds . But in no case do not exceed the recommended range of herbicides used .
4 , during spraying , when selecting the right herbicide attention after "three " principle. Namely herbicides acres usage, mu against water sprayed area is established , do not arbitrarily increase or decrease , which is crucial. Under normal circumstances, do leaf processing, an acre of lawn requires 25-30 kg of liquid to spray evenly ( general agricultural sprayers two watering ) , such as using Ping wide net , elimination Wo , elimination miscellaneous, music , etc. weeding clover . However, the soil to be closed , then the dosage per unit area determine the circumstances , against the need to increase the amount of water to 50-60 kg acre lawn trigger sprayer spraying liquid to uniform ( usually watering agricultural sprayer 4 ) , otherwise it is not easy to form tight membrane, such as the use or play Ping Yue Jin Baixiu closed weeding to do .
5, the use of herbicides when soil moisture is essential. Good soil moisture to ensure herbicidal effects of drought poorly.
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