Q: In the 3 to 4 leaf stage of rice, can we use 25 g/litre of penoxsulam 80 ml and 69 g/l spermidine? Answer: According to the above-mentioned application of the drug dosage, it is safe for the robust rice of the 3 to 4 leaf stage. Penoxsulam is safe for rice and is sprayed with 25 g/l penoxsulam 80 ml/m2 for normal application. It does not cause phytotoxicity to rice seedlings in the 3 to 4 leaf stage, and is less than 4 leaves. The weeds and other weeds have good control effects. Applying 69 g/L of estramus oxazolidoxime to 15 mL of water evenly and finely sprays, it is also safe for strong glutinous rice seedlings in the 3 to 4 leaf stage, and it is safe for Qianlong and Matang, which are below the 2-leaf stage. Good control effect, when the grass age is large, the control effect is not good, and cyhalofop-butyl should be added. The three drugs, cyhalofop-butyl, penoxsulam, and frazoxime, can be mixed.
Plant Extract has been classified to two types by extraction methods including the standard plant extract and ratio extract in china local market. If we want to distinguish between the two types ,we can see from the ingredients that we should pay attention to. The standard plant extract will be tested of its special ingredients that in the product maybe by HPLC, UV, TLC etc,but for the ratio extract,we don't pay attention to the special ingredients that in it or not,not to mention the purity of one ingredient.if you still confused about the cllasfication,pls contact us to know more.
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