Kuaida Agrochemical Winter Wheat Field Weed Control Solution

Time:

2016-10-19


Based on the characteristics of weed occurrence in winter wheat fields, Kuaida suggests that the prevention and control of weeds in wheat fields should follow the principles of "one sealing", "two killing", and "three supplementing", namely, sealing before sowing, prevention and control during the seedling stage (mid to late November), and supplementary prevention during the turning green period (late February to mid March of the following year).


1、 Prevention and Control of Weeds in Rice Wheat Rotation


In the main rice wheat rotation wheat fields in China, there are more than a dozen common grass weeds in the Gramineae family, including oat, bromegrass, Kanmai Niang, Japanese Kanmai Niang, Poa pratensis, hard grass, grass, lolly grass, perennial ryegrass, candle grass, and knotweed wheat. It is difficult to effectively control with a single herbicide variety. In addition, in some areas, some grasses in the family Gramineae exhibit strong resistance to single formulations such as imidacloprid and propargyl.

 

Tilling the wheat field requires intensive cultivation, covering the wheat seeds, and taking corresponding measures to prevent and eliminate weeds and weeds:

1) Optional formula for wheat after sowing and before seedling, per mu (667m2)

① 25% Green Mellon 300-400 grams

② 25% chlorotoluron 250-300 g+60% butachlor 75-90 ml

③ 50% Isopropanol 180-200 grams

④ Qianjinmai (60% difluoro isoproturon) 180-200g mixed with 60-80kg water, evenly spray, sealed

Rationality (soil drought increases water consumption to ensure effective efficacy)

2) Seedling stage (3-4 leaf stage): optional formula for mu use

① 50% Isopropanol 160-200g+Ultra Fear 10-15g (or Wide Star 15-20g)

② Hange (or Maicao Xing) 160-200 grams

③ Mago 160-200 grams

④ Qianjinmai (60 pyrrolidone · isoproturon) 180-200g

⑤ Mizun 80-120ml or Mihexin (20-30g of 15% acetochlor+10-15g of super fear or (2, 15-20g of Kuanxing or 3, 30-40ml of Jinkuoda or 4, Jiazun 1+1 or 5, Jieqing 1+1) and other formulations, mixed with 30-40kg of water to evenly spray to prevent and kill weeds. Isopropanol can also be used in combination with Maicaoxin to improve the control effect of grass weeds and reduce the risk of wheat freezing damage caused by Isopropanol during cold waves.

3) Wheat Revitalization Period

For wheat fields with grass and broad-leaved weeds, the formula of Maizun 100-150ml (or 30-40g of Maihexing)+Chaowei 10-15g (or 15-20g of Kuanxing or 40-60ml of Jinkuoda) can be selected per mu, and 30-40kg of water can be added to evenly spray to control grass and broad-leaved weeds;

For wheat fields dominated by gramineous weeds, we can choose Maizun 100-150ml or Maihexing 30-40g, add 30-40kg water to evenly spray to supplement and control gramineous weeds;

For wheat fields dominated by broad-leaved weeds, the following options can be selected:

① Mai Jing

② Jinkuida 40-50 milliliters

③ Jia Zun 1+1 (Super Fear 15g+Jinkuai 24ml)

④ Jieqing 1+1 (18g of Wide Star+24ml of Jinkuoda) 1-2 packs of water mixed with 30-40kg of spray evenly to control broadleaf weeds.

⑤ The Maijing 1+1+1 combination (Jinkuida 24ml+Maijing 15g+Xinshaxing 30g) targets stubborn broad-leaved weeds such as Euphorbia, Sophorbia, and Shepherd's purse.

⑥ Jinkuida 1+1 combination (Jinkuida 24ml+50g/L difluorosulfonate suspension agent 12g) is targeted at stubborn broad-leaved weeds such as pigweed, Artemisia annua, shepherd's purse, purslane, etc.

Special reminder:

It is recommended to use different formulas for prevention and control before sowing, during the seedling stage, and during the turning green period. The number of weeds is large, and it is necessary to increase the dosage appropriately.

2、 Prevention and Control of Weeds in Dry Wheat Rotation

1. Wild oats and broad-leaved weeds mixed in wheat fields: It is necessary to focus on the key period of prevention and control in the early winter period and supplement prevention during the turning green period.

1) Seedling stage (3-4 leaf stage)

2) Wheat Revitalization Period: Same as above (Revitalization Period Formula)

2. The mixed wheat field of pig plague, sown Artemisia annua, and shepherd's purse should focus on the key period of prevention and control in the early winter period, and supplement prevention during the turning green period.

1) Seedlings in early winter: From mid to late November to late December, the weeds are basically ready, and the formula can be selected for each mu:

① 1-2 packs of Maijing

② Ultra Fear 10-15g or Wide Star 15-20g+Jinkuaida 30-40ml

③ Jia Zun 1+1 (Super Fear 15g+Jinkuida 24ml) 1 set

④ Jieqing (18g of Wide Star+24ml of Jinkuoda) 1-2 groups mixed with 30-40kg of water evenly spray to basically control weed damage during wheat growth period.

2) Greening period: For wheat fields with frequent occurrence of pig plague, which have passed the appropriate control period and have not been effectively controlled in the early stage, the pesticide should be applied as early as possible from late February to early March. The formula can be selected for each mu:

① 1-2 packs of Maijing

② Ultra Fear 10-15g or Wide Star 15-20g+Jinkuaida 30-50ml

③ Jia Zun 1+1 (Super Fear 15g+Jinkuida 24ml) 2 sets

④ Jieqing 1+1 (18g of Wide Star+24ml of Jinkuoda) 2 groups, add 30-40kg of water and spray evenly. Early application can also achieve good weed control effects, but late application is not effective.

3. A. Mixed wheat fields of pig plague, sown Artemisia annua, and mother-in-law: Based on different situations, the method of applying pesticides during the seedling stage and selecting treatments in stages is adopted.

1) Seedlings in early winter: From mid to late November to early December, when the weeds are almost all ready, a formula can be selected

① Mai Jing

② Ultra Fear 10-15g (or Wide Star 15-20g)+Jinkuida 30-40ml

③ Jia Zun 1+1 (Super Fear 15g+Jinkuida 24ml) 1-2 groups

④ Jieqing 1+1 (18g of Wide Star+24ml of Jinkuoda) 1-2 groups, 30-40kg of water, even spray

B. Pig plague, sow mother Artemisia, and mother-in-law mixed wheat field: According to different situations, the method of applying pesticides during the seedling stage and selecting treatments in stages is adopted.

Greening period: For fields with a lot of glossy lacquer, supplementary application per acre of formula can be used during the wheat turning green period. Optional:

① Jinkuida 40-60ml

② Jia Zun 1+1 (Super Fear 15g+Jinkuida 24ml) 2 sets

③ Jieqing 1+1 (Wide Star 15g+

Jinkuida 24 ml) 2 sets

④ Maijing 1+1+1 combination (Jinkuida 24ml+Maijing 15g+Xinshaxing 30g) 1 group

When the weather is sunny, the temperature is higher than 10 ℃, and the weather forecast is good in the next few days, add 30 kg of water to evenly spray before the jointing of wheat.

If the sowing of Artemisia annua is severe, it can be used in combination with 50 to 60 grams of Neoxacin (56% dimethyl tetrachloride). In areas where resistance to benzsulfuron is developed, 30 to 40 grams of Maijing (50% pyrrolidone) can be used. To prevent and control resistant weeds such as Artemisia annua, pig weed, and shepherd's purse.