I. Seed treatment technology Seed treatment is a highly demanding pest control technology, an effective way to improve seed quality and increase resistance, and to control seed transmission diseases such as bakanae disease, dry tinea worm disease and rice blast, white The occurrence of leaf blight, etc. is more effective. In addition to pre-soaking seed drying and screening, the key technologies for seed treatment are selecting counterpart drugs, mastering drug concentration, and grasping the time for seed soaking. At present, the most widely used seed treatment agents in our city are mainly 10% dithiocyano methane EC and 25% prochloraz EC. It is recommended to use prochloraz in the old wards and mountains of rice blast. The dosage and soaking time of the medicine are as follows: 1. 10% dithiocyano methane EC, 5-6 kilograms of water per 2 ml, 6 kilograms of seed soaking, and 48 hours of soaking time (24 hours for soaking seeds in hybridization series). Prevent bastard disease and dry-needle nematode disease, sow germination directly after sowing. 2, 25% Prochloraz EC, 2000 times liquid soaking for 48 hours (hybrid series seed gap soaking for 24 hours) to prevent bastard disease and seedling mites, after soaking can be direct germination sowing.

Second, the prevention and control of viral diseases in recent years, stripe blight and black streaked dwarf disease in our city have been issued to varying degrees, the southern black streaked dwarf disease has emerged last year. In terms of prevention and control, we must adhere to the guiding principle of “prevention first,” implement prevention and control strategies of “cutting off the source of poisons, pest control and disease prevention, and comprehensive management”, and on the basis of monitoring the dynamics of rice planthoppers in a timely manner, promote the cultivation of disease-resistant varieties and delay them appropriately. During the sowing period of rice, it grasped the key links of rice planthoppers and the early stage of Honda infestation and white-backed planthoppers, and treated the planthoppers and whitebacked planthoppers to control the disease epidemic.

1, control weeds, plowing irrigation, eliminating insect sources. The chemical control of ash rice borers was carried out during weeding in direct broadcast rice fields. At the same time, remove the weeds in the fields, the ditch, and the roadside.

2, choose anti-(resistant) disease varieties. Promote high-yield and high-quality varieties such as "Zhongzheyou 8", "Guodao 7", "Xiushui 134", and "Xiushui 09", and appropriately delay the sowing time for the prevention and control of striped blight and black-streaked dwarf disease. Avoid the peaks of migration and transmission of ash and rice, and appropriately increase the seeding rate.

3, drug seed dressing. Combining seed treatment with 35% butylthiocarbacarb WP10g plus 10% imidacloprid WP5-10g per kilogram of seed, control of rice planthoppers and rice thrips, repellent sparrows and mice.

4. Focus on the prevention and control of rice planthoppers in seedling stage. According to experiments, the first 50 days after sowing is the most susceptible stage of stripe blight, and prevention and control work is particularly important. It is recommended that direct-seeded rice should be controlled from 7 to 10 days after sowing in one leaf to two leaf stage and transplanted rice field, and once again in 7-10 days. The recommended dosage and dosage is 48% chlorpyrifos EC 100ml plus 25% pymetrozine WP 24g per acre.

5, early onset of prevention and treatment. The use of 20% morpholinoacetophenone WP60-90g per acre plus 0.04% brassinolide 6ml plus 40% chlorpyrifos 100ml mixed with 2 times, each time interval 7-10 days, have a certain degree of inhibition of the disease. In areas where viral diseases have occurred in the past year, do the work of “bringing medicine to Shimoda” 1 to 3 days before the time of pulling out.

Third, do a good job in Putian and live field chemical weeding The single crop of late rice in our city, weeds mainly include grass, sedge, gold, beekwag and dwarves, and also some residual old grass. Therefore, weeding in Putian is very important. Specific agents can be used:

1, 5-7 days before ploughing, mu using 41% glyphosate WC100ml or 20% paraquat WC200-250ml, eliminate the old grass.

2, 2-4 days after sowing, etc., seedlings rooted in the back row of dry field water and then applied, with 40% besimfloxacin WP80-100g per acre, watered 30-45kg uniform spray, keep the field after spraying Wet.

3. During the period of 3-4 leaf stage of seedlings, if the field with weeding or poor weed control effect is not sown after sowing, it can be treated at the 3-4 leaf stage of seedlings. Treatment can be based on the field of grass phase selection of 10% Han Qiuhao, 38% live star WP, 2.5% rice Jie suspension agent, 10% cyhaloflavin, and 90.9% 禾大壮 EC Another sedge, timothy For the dominant species, 48% of Bendazione is used as the dominant species, and 10% is used as the dominant species in the plots of Vallisneria, Siebularia, Cyperus velutina, Abomazia, and Wild Sagittaria. powder. Pre-drug drained field water, thin water 1 day after the drug, water retention for 7 days.

Note: For all fields that use benzacetazone in paddy field or direct seeding field, seeds must be germinated, and medicine can be used after collapse. Seeds do not germinate, and blind grain sowing must be used after rice germinate.

Natural Herbal Extract

Herbal Extracts,Organic Herbal Extracts,Natural Herbal Extract,Powdered Herbal Extracts

Xi'an JCF Herb Technology Development Co., Ltd , https://www.jcfherb.com