A reader from Handan City, Anhui Province, came to the telephone on January 4th: There are more than 300 mu of wheat in the 4-leaf 1 heart period. There is 1 tiller per plant. The field sees Maimai in the period of 2 to 3 leaves. There is a small amount of young leeks. Poria Cinnamon, 37% acebendrazolone wettable powder (including clodinafop-propargyl 20%, bensulfuron-methyl 12%, and flufenoxaone 5%) 30g in the first few days per mu. How is the effect of grass? Another 100 mu of wheat is in the 2-leaf 1 heart stage. It is planned to reuse the herb in the spring. How much is the amount of the drug used in the spring?

37% Alkyitazofone WP of Jiangsu Suzhou Fumei Real Plant Protection Agent Co., Ltd., containing 20% ​​clodinafop-propargyl ester, bensulfuron-methyl 12%, and fluoxazone 5%, registered for the control of annual deafness in winter wheat fields. For undergraduate weeds and broad-leaved weeds, the recommended dosage is 111 to 166.5 grams per hectare of pure medicine, equivalent to 20 to 30 grams per mu, equivalent to 4 to 6 grams of clodinafop-propellic acid per acre, and bensulfuron methyl chloride. 2.4 to 3.6 grams of pure flufenoxamone 1 to 1.5 grams.

Clodinafop-propargyl can control the weeds such as Mainia, wild oats, hard-grasses, grasses, and stick-head grasses. It has poor control effect on bluegrass, bromegrass, and knotted wheat. In some regions, the level of resistance to clodinafop-propargyl esters in grasses and Japanese aphrodisiacs is increasing. In many areas, weed populations that have high resistance to clodinafop-propargyl esters have emerged, resulting in decreased control efficiency. Clodinafop-propargyl esters have good safety to wheat and can be applied before the two-leaf one-heart stage of wheat to the jointing stage. They can be applied in the second to fourth leaf stage of the grasses, and the clodinafop-propargyl esters are generally used in 3 to 3 times. 4.5 grams; Appropriately increase the dosage after the grass age is increased, and the dosage should be appropriately increased when the field weeds have strong drug resistance. The clodinafop-propargyl ester has a certain inhibitory effect on the growth of wheat. It is applied when the wheat is in normal growth during the tillering period. The amount of the alfalfa herb pure drug is less than 6 grams, and it is safe for the wheat seedlings; the amount of the pure medicine is more than 6 grams and the safety of the wheat seedlings is increased. The decline will cause the growth of wheat seedlings to be inhibited; when the pure drug dosage exceeds 7.5 g, the growth of the wheat seedlings will be significantly inhibited, which may cause the yellow leaves of the wheat seedlings to grow. The pure drug dosage of more than 9 grams per mu will cause serious injury to the wheat seedlings and the phenomenon of seedling emergence. The wheat leaves are severely yellow and the root growth is blocked.

Both flufenoxamone and bensulfuron-methyl are suitable for controlling broad-leaved weeds in wheat fields. Fazochlorin has a broad spectrum of herbicides. It has good control effect on broadleaf weeds in most wheat fields, such as leeks and bristles, and kills grass quickly. Generally, 2 to 3 days after application, the sensitive weeds show signs of injury. , died after 1 week. The use of flufenazone in wheat fields generally uses 1 to 2 grams of pure drug per acre. Bensulfuron-methyl has a good control effect against broad-leaved weeds such as Poria cocos, Big-vegetative plants, and rice leeks. The use of broad-leaved weeds in the low-intensity period generally uses 3 grams of bensulfuron methyl chloride per acre, and when the grass age is large, the amount of pure acre can be increased to 4 grams.

With 37% aconazole fluconazole per acre 30g, equivalent to 6 grams per acre pure clodinafop ester, besysulfuron pure 3.6 grams, 1.5 grams of flufenoxa pure, for 2 to 3 leaves The period of the aphrodisiac and low-age leeks and piglets should have good control. When weeding with 37% alkenaconazole and WP in the spring, we should use before the jointing of wheat. The amount of mu should not be more than 30g. If we increase the dosage blindly, the growth of wheat seedlings will be easily inhibited, and seedlings will appear seriously.

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