For rice field machinery live broadcast, rice field ditch spreading and cotton field seeding rapeseed and other technical models, farmers can choose disease-resistant, lodging-resistant, stain-resistant, dense-tolerant early-maturing varieties, such as nuclear excellent 56, Tongyouza 2, oyster sauce 737 , Huayouza No. 10, Tianhe Oil No. 10, etc. If the farmer chooses the cultivation mode of cotton field planting, rice field transplanting, etc., it can choose strong anti-falling, self-developing ability, super high-yield varieties, such as Qinyou 10, Qinyou 7 and Zhongheza 418.
For farmers in the rice-rice oil-three-crop production area, it is best to use very early-maturing rapeseed varieties. For those without very early-maturing varieties, early-maturing or mid-maturing varieties can also be used, such as Rongyou No.11, Mianyou 88, Tianyou early 1 No.. In the heavier areas where the clubroot disease occurs in southern Anhui, farmers should choose Huanzao 62R, Huashuang 5R and other anti-root disease types.
This year, the rapeseed production area that can carry out mechanized operations in the province should focus on demonstrating and promoting the “345†model of high-yield and high-yield rapeseed technology. This model uses 25,000-30,000 high-yield cultivation techniques of high-yield planting per acre, and integrates high-quality multi-resistant plant types. Compact double-low-leed rape variety, “Bi-protection†seed dressing, “Yi Shi Zhuang†rapeseed slow-release fertilizer, acetochlor, new American star and other new kinds of fertilizers, using rapeseed planter (spreading machine), combine harvester and The drone carries out the whole process of mechanized production. At the same time of achieving the goal of 200 kilograms per mu, the materialized cost of production will drop to about 300 yuan/mu, and the net benefit will be more than 500 yuan/mu.
In the planting time, farmers can plant in the late September to mid-October. Seed dressing before planting, prevention and control of rapeseed seedlings, each kilogram of rapeseed seeds with the active ingredient imidacloprid 2 grams plus appropriate amount of water and mix well. The 6-row rapeseed combined seeder (or manure spreader) is suitable for sowing, the seeding amount is 300g, and the seedlings are 2.5-30,000. For those fields with delayed planting period and poor grievances, farmers should increase the amount of seeding appropriately. The sowing date should not exceed October 20 at the latest, and the sowing amount should not exceed 400 g/mu.
In the application of fertilizer, farmers can adopt the “one base fertilizer + one top dressing†technical route. The base fertilizer uses 40% (25-7-8) of the special slow-release fertilizer for rapeseed, “Yi Shi Zhuangâ€, 40-50 kg per mu, and is applied together with the rapeseed sowing machine, and the fertilizer is applied to the lower part of the seed to improve the fertilizer efficiency.
In the spring, the seedlings should be applied to the urea 2.5-5 kg/mu during the bud stage. When the flowering period is “one for four preventionsâ€, 1 kg of urea solution should be sprayed per acre (spraying concentration is controlled within 1%), that is, during the flowering period. One-time mixing of 40% sclerotium net WP or 100 mg of prochloraz + 100 mg of potassium dihydrogen phosphate + 50 g of +1 kg of urea, and the amount of liquid spray for motorized sprayer is 12-15 kg per mu. Manual sprayer is not less than 30 kg per acre.
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