[guide language] : ?
Herbicide is to making a kind of drug that when cultivating, uses via regular meeting, basically rise to exterminate the action with precautionary fireweed. Because be inside farm besides appear besides all sorts of plant diseases and insect pests, fireweed also is rife, the vitality of these fireweed and progenitive force are exceedingly tenacious, return meeting and crop to contend for nutrient together, it is stinking really. Only as early as possible exterminate them, ability can leave more nutrient to be used to crop.
Do not pass the word of herbicide, also should notice to use a method, suitable use talent can make the effect better. If some moment get the influence of a few elements, can disturb use effect, the purpose that weeds with respect to short of so. Be here today, mix say for everybody, the word of use herbicide should notice what thing, ability can make the effect more good.
One, recognize fireweed
Must know to want to exterminate above all this is what fireweed, weed correspondingly because of different herbicide photograph chart is different, if do not have the herbicide that finds correspondence, that does not have the effect.
And fireweed also is put in certain mutation actually, also appear possibly between a cropland not merely additionally a kind of fireweed, the adoption with this OK and appropriate time a few kinds of herbicide mix used method. Can oneself will undertake allocating, actually the word in inn also has this kind of compound recipe to sell. Used the thing to disease only, ability can achieve good result.
2, note weather
The use effect of herbicide, mix actually weather is to have particular concern. Generally speaking, do not undertake weeding when the sun is very big, had better be in namely e.g. the word of summer mix before 10 o'clock in the morning afternoon after 4 o'clock. Big sun illuminate when, land will be relative dry, such word can affect medical effect.
And when climate is drier, fireweed can shut the stoma of face of blade occasionally, reduce moisture to absorb so, natural medicine fluid sprays come up the effect is abate also. Be in so eject when the proper preparation that can add a few helps to permeate, such effects are OK better. Another words, also can use a few exaggeration more, also can achieve similar result.
3, notice gramineous age
If grow too greatly,a lot of people know fireweed, such word, medical effect can be compared low, and common dosage can be not killed certainly. But also not be to say to jump over small when better, if weeds grows very smally, was risen to keep out by the plant for the most part, if such spraying, very bad in season arrives on fireweed, it is a proposal commonly when when weeds grows 3 leaf, will use drug, the effect is met more good.
