Control of pests and weeds in single-season late rice seedling stage
2022-09-01 06:03:48
In the single-season late rice production, conventional cultivation methods such as breeding, throwing, and live broadcast coexist, and the sowing time and field environment are different, so that there is a big difference between the pests and diseases in the field, and the local conditions should be based on the actual situation between the fields. With reference to the contents of this information, we will do a good job in planting seedlings for single-season late rice seedlings to ensure high yield of late rice.
First, pest control: (acre)
1. Current pests and diseases: The recent weather is conducive to the damage of rice locusts and gray rice blasts. If no control is carried out, it will seriously reflect the normal growth of seedlings. In particular, gray rice blast is the vector of rice stripe disease, and the growth of seedlings is particularly serious. For the field where there are more rice blasts and gray rice blasts, they should immediately use 10% of the net 40 grams/mu, and spray with water to control the rice blast and gray rice blast.
2, do a good transplant with drugs: 1 to 3 days before transplanting, you can use the following pesticides, fungicide formulations, a combination of drugs.
Insecticide: (1) 5% Regent 40-45 ml; (2) 5% Regent 30 ml +18% insecticidal (worm killer) 200 ml; (3) 18% insecticidal (worm killer) 250 ml + 10% once again net 40 grams.
Fungicide: (1) 5% Jinggangmycin 150 ml; (2) A pack of stalk.
Second, chemical weeding: (mu amount)
1. Throwing stalks and seedlings transplanted Honda: After throwing scorpion for 4 to 5 days, after the seedlings are basically straight, you can use 8.8% of chlorpyrifos (cycloheptene benzyl) wettable powder 30-35 grams per acre, or 35% Benzene 100 ~ 120 grams, or 10% Mercury (pyrsulfuron) 15 ~ 20 grams, mixed with urea or sand 10 kg. The application of the field requires flatness. When applying the medicine, there should be a thin layer of water in the field (the height of the water layer should not exceed the heart leaf to prevent phytotoxicity), and the water should be kept for 5 to 7 days after application. For the case of poor treatment or poor control, the field will be treated with 35% gold for 35 to 40 grams per acre 15 to 20 days after the throwing. The soil will be drained before the application, and the next day will be rehydrated. ~ 7 days.
2, hand inserting seedlings Honda: conventional hand-inserted seedlings (over 30 days old) transplanted Honda, 4 to 5 days after planting, 30% of per acre refined Le Caolong 20 ~ 25 grams, or 18% Tiancaoguang 30 ~ 35 grams, mixed with fertilizer or sand 10 to 15 kg. The application of the field requires flatness, and the field should be kept shallow when applied, and kept for 5 to 7 days.
3. Live field: In the 2.5~3 leaf stage of the seedlings, the fields with poor control in the early stage should be rectified. 36% gold can be used to fill 35 to 40 grams, with water spray. Drain the field water before application, rehydrate after 1 day, keep water for 5-7 days; or 10% Mercury (pyrazine) 15g, spray or spread. Fill shallow water before application and keep water for 3 to 5 days.
Third, matters needing attention
1. Pay attention to the seedlings when using the medicine. It is strictly forbidden to use the herbicide containing acetochlor for the throwing of the field and the seedlings. It should be used with caution when the transplanted seedlings and the seedlings with heavy seedlings are weak. Herbicides can be referred to the field of weeding, seedling transplanting Honda weeding technology or delaying the use of drugs.
2, spray drugs should be sufficient to cover the amount of water, 50 kg per mu of water. It is necessary to avoid the use of high temperature, no rain, etc. before the rain, and pay attention to the management of field water according to technical requirements.
3, pay attention to the interaction between different agents, do not mix and match. Do not use chlorinated quinone-containing pesticides in fields that have used oxazoline or benzoic acid to avoid phytotoxicity.
First, pest control: (acre)
1. Current pests and diseases: The recent weather is conducive to the damage of rice locusts and gray rice blasts. If no control is carried out, it will seriously reflect the normal growth of seedlings. In particular, gray rice blast is the vector of rice stripe disease, and the growth of seedlings is particularly serious. For the field where there are more rice blasts and gray rice blasts, they should immediately use 10% of the net 40 grams/mu, and spray with water to control the rice blast and gray rice blast.
2, do a good transplant with drugs: 1 to 3 days before transplanting, you can use the following pesticides, fungicide formulations, a combination of drugs.
Insecticide: (1) 5% Regent 40-45 ml; (2) 5% Regent 30 ml +18% insecticidal (worm killer) 200 ml; (3) 18% insecticidal (worm killer) 250 ml + 10% once again net 40 grams.
Fungicide: (1) 5% Jinggangmycin 150 ml; (2) A pack of stalk.
Second, chemical weeding: (mu amount)
1. Throwing stalks and seedlings transplanted Honda: After throwing scorpion for 4 to 5 days, after the seedlings are basically straight, you can use 8.8% of chlorpyrifos (cycloheptene benzyl) wettable powder 30-35 grams per acre, or 35% Benzene 100 ~ 120 grams, or 10% Mercury (pyrsulfuron) 15 ~ 20 grams, mixed with urea or sand 10 kg. The application of the field requires flatness. When applying the medicine, there should be a thin layer of water in the field (the height of the water layer should not exceed the heart leaf to prevent phytotoxicity), and the water should be kept for 5 to 7 days after application. For the case of poor treatment or poor control, the field will be treated with 35% gold for 35 to 40 grams per acre 15 to 20 days after the throwing. The soil will be drained before the application, and the next day will be rehydrated. ~ 7 days.
2, hand inserting seedlings Honda: conventional hand-inserted seedlings (over 30 days old) transplanted Honda, 4 to 5 days after planting, 30% of per acre refined Le Caolong 20 ~ 25 grams, or 18% Tiancaoguang 30 ~ 35 grams, mixed with fertilizer or sand 10 to 15 kg. The application of the field requires flatness, and the field should be kept shallow when applied, and kept for 5 to 7 days.
3. Live field: In the 2.5~3 leaf stage of the seedlings, the fields with poor control in the early stage should be rectified. 36% gold can be used to fill 35 to 40 grams, with water spray. Drain the field water before application, rehydrate after 1 day, keep water for 5-7 days; or 10% Mercury (pyrazine) 15g, spray or spread. Fill shallow water before application and keep water for 3 to 5 days.
Third, matters needing attention
1. Pay attention to the seedlings when using the medicine. It is strictly forbidden to use the herbicide containing acetochlor for the throwing of the field and the seedlings. It should be used with caution when the transplanted seedlings and the seedlings with heavy seedlings are weak. Herbicides can be referred to the field of weeding, seedling transplanting Honda weeding technology or delaying the use of drugs.
2, spray drugs should be sufficient to cover the amount of water, 50 kg per mu of water. It is necessary to avoid the use of high temperature, no rain, etc. before the rain, and pay attention to the management of field water according to technical requirements.
3, pay attention to the interaction between different agents, do not mix and match. Do not use chlorinated quinone-containing pesticides in fields that have used oxazoline or benzoic acid to avoid phytotoxicity.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Pvc Pipe Connection,Pn10 Upvc Pipe,Pipe Solvent Connection,Din Water Supply Upvc Pipe
Zhejiang Huangyan Minghua Plastic Pipe Fitting CO.,LTD , https://www.pipefitting-mh.com