In the sowing of crops at the sowing stage, pests and diseases are usually controlled by chemical pesticides. A common method is to use seed dressings. Pesticide seed dressing method is simple, the drug efficacy is longer, and it can get twice the result with half the effort. Now introduce several common methods of seed dressing:
1 Dry mix mainly uses powder pesticides for seed dressing, such as triadimefon, green hen No. 2, loquat fruit, Fumei double, and seed dressing double. For example, in the treatment of corn smut seed, triazolinone can be used to throw 325~400g per 50kg of seed, sorghum smut seed can be treated, 130-170g per 50kg, and 50% of carbazole can be used to control cucumber disease. O. 4% of the amount of seed dressing; Green Heng 2 WP seed dressing, melon seeds per kilogram of medication 4 - 5g, can effectively control the fungal diseases lurking on the seed. It is best to use a special seed dressing device for seed dressing. The medicine and seeds are weighed into the seed dressing device according to the ratio. The positive and negative lO minutes can be mixed well. In the absence of seed dressings, plastic bags can be used instead. Pesticides and seeds can be poured into bags, and the mouth of the bag can be tied tightly. When using this method, pay attention to plastic bags should not be too large, the amount of loading does not exceed 2/3 of the length of the bag, in order to facilitate the operation and ensure the quality of seed dressing.
2 The wet mix is ​​mainly used for seed dressing with emulsion pesticides. When the seeds are seeded, the pesticides, water, and seeds are weighed in proportion. Pour the pesticides into water and dilute them evenly. Pour the seeds into the seed dressing container, and then pour the pesticide dilutions. Into the seed dressing container, turn the edge while turning, fully mix well, cover with plastic sheeting stuffy 24h, you can sow. For example, m40% Dimethoate EC 500g 15kg water, mixed wheat species l 80kg, piled nausea after turning, until the liquid dried can be sown, the main control pests, cockroaches and other pests; or 90% crystal trichlorfon 0. 75kg, 10kg of hot water, 150kg after cooling and dissolving and cooling, sowing after drying, can prevent and control wheat underground pests; prevent and control corn underground pests, use 40% methylisophosphoric EC, 0.1% of seed weight Seeds can be sown after mixing and drying; prevent bakanae disease in rice, after soaking in rice seeds, according to 60kg rice seed with 40% seed dressing double WP 100g, the first seed dressing double with a certain amount of water, diluted On the seeds, mix well.
3 mixed seed dressing emulsion pesticide and powder pesticide mixed dressing is worth recommending a seed dressing method. When seed dressing, emulsion pesticides should be used first, then stuffy and dry and then mixed with powder pesticides. This seed dressing method is relatively thorough sterilization.
One of the precautions for seed dressing is that when seed dressing, the seed weight, the amount of medicine, and the amount of water must be weighed, and the dilution should be uniform to prevent too much medicine from harming the seed. If the amount of medicine is too small, the sterilization effect cannot be achieved. Some pesticides such as anti-moulding agent in the anti-mushroom spirit, the drug used for seed dressing, it is appropriate to dry mix, wet mix and boring species are easy to produce phytotoxicity. Therefore, the pesticide performance should be fully understood. The second is to try to do with seed dressing when dressing, can not be stored for a long time, the seeds of good medicine should not be exposed to the sun, so as not to affect the efficacy. Thirdly, the pesticides currently used for seed dressing are mostly toxic pesticides. Pay attention to safety during operation. Wear masks, wear long-sleeved clothes, and clean the remaining pesticides after seed dressing in order to prevent human and animal poisoning.
1 Dry mix mainly uses powder pesticides for seed dressing, such as triadimefon, green hen No. 2, loquat fruit, Fumei double, and seed dressing double. For example, in the treatment of corn smut seed, triazolinone can be used to throw 325~400g per 50kg of seed, sorghum smut seed can be treated, 130-170g per 50kg, and 50% of carbazole can be used to control cucumber disease. O. 4% of the amount of seed dressing; Green Heng 2 WP seed dressing, melon seeds per kilogram of medication 4 - 5g, can effectively control the fungal diseases lurking on the seed. It is best to use a special seed dressing device for seed dressing. The medicine and seeds are weighed into the seed dressing device according to the ratio. The positive and negative lO minutes can be mixed well. In the absence of seed dressings, plastic bags can be used instead. Pesticides and seeds can be poured into bags, and the mouth of the bag can be tied tightly. When using this method, pay attention to plastic bags should not be too large, the amount of loading does not exceed 2/3 of the length of the bag, in order to facilitate the operation and ensure the quality of seed dressing.
2 The wet mix is ​​mainly used for seed dressing with emulsion pesticides. When the seeds are seeded, the pesticides, water, and seeds are weighed in proportion. Pour the pesticides into water and dilute them evenly. Pour the seeds into the seed dressing container, and then pour the pesticide dilutions. Into the seed dressing container, turn the edge while turning, fully mix well, cover with plastic sheeting stuffy 24h, you can sow. For example, m40% Dimethoate EC 500g 15kg water, mixed wheat species l 80kg, piled nausea after turning, until the liquid dried can be sown, the main control pests, cockroaches and other pests; or 90% crystal trichlorfon 0. 75kg, 10kg of hot water, 150kg after cooling and dissolving and cooling, sowing after drying, can prevent and control wheat underground pests; prevent and control corn underground pests, use 40% methylisophosphoric EC, 0.1% of seed weight Seeds can be sown after mixing and drying; prevent bakanae disease in rice, after soaking in rice seeds, according to 60kg rice seed with 40% seed dressing double WP 100g, the first seed dressing double with a certain amount of water, diluted On the seeds, mix well.
3 mixed seed dressing emulsion pesticide and powder pesticide mixed dressing is worth recommending a seed dressing method. When seed dressing, emulsion pesticides should be used first, then stuffy and dry and then mixed with powder pesticides. This seed dressing method is relatively thorough sterilization.
One of the precautions for seed dressing is that when seed dressing, the seed weight, the amount of medicine, and the amount of water must be weighed, and the dilution should be uniform to prevent too much medicine from harming the seed. If the amount of medicine is too small, the sterilization effect cannot be achieved. Some pesticides such as anti-moulding agent in the anti-mushroom spirit, the drug used for seed dressing, it is appropriate to dry mix, wet mix and boring species are easy to produce phytotoxicity. Therefore, the pesticide performance should be fully understood. The second is to try to do with seed dressing when dressing, can not be stored for a long time, the seeds of good medicine should not be exposed to the sun, so as not to affect the efficacy. Thirdly, the pesticides currently used for seed dressing are mostly toxic pesticides. Pay attention to safety during operation. Wear masks, wear long-sleeved clothes, and clean the remaining pesticides after seed dressing in order to prevent human and animal poisoning.