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Today I will discuss modern varieties and cultivation methods of aus paddy for Bangladeshi farmers.

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In Bangladesh, paddy is cultivated in three seasons - Aush, Aman and Boro seasons. Boro paddy cultivation uses a lot of ground water. As a result of ground water abstraction, the water level is going down day by day which is not desirable. Since aus paddy cultivation is rain dependent, irrigation cost is saved in this paddy production. As a result, the Ministry of Agriculture is advising to change the conventional crop stage and exclude boro paddy cultivation and include aus paddy in the grain stage. Moreover
High yielding varieties released at present yield higher yields.
Aus paddy is cultivated in two ways. Bona Aush and Ropa Aush. Popular modern varieties of Bona Aus: Bridhan 43, Bridhan 65, Bridhan 63 and Binadhan-19. Modern varieties of transplanted aus paddy: Bridhan 48, Bridhan 72, Bridhan 75, Binadhan-19 and Bri hybrid paddy 6.
Characteristics of aus rice varieties:
Binadhan-19: Prefers drought-tolerant soil as it is drought tolerant. Suitable for both sowing and transplanting methods. Trees do not tilt. Lifespan is 95-100 days. The rice is slender and long. Yield 4-5 tons / ha.
Brie Paddy 43: The variety is suitable for both rain prone and drought prone areas. Born in advance, life span is 100 days. Drought tolerant. Because it is very hard, it does not tilt easily. Yield 3.5 tons / ha.
Brie Paddy 48: This high yielding variety is suitable for transplanting aus season. Lifespan is 110 days. Ka Ð tough. The rice is medium thick and white. Yield 5.0 ton / ha.
Brie Paddy 75: Drought tolerant variety of Bona Aus season. The tree does not fall down as it is short and hard. Paddy does not fall easily from the sheaf. The rice is medium thin and white and the rice is crispy. Lifespan is 100 days. Yield 3.5-4 tons / ha.
Brie Paddy 72: This high yielding variety is suitable for transplanting aus season. The height of the tree is 110 cm. Lifespan is 100-105 days. Ka Ð tough. The rice is medium thick and the rice is crispy. Yield 4.5-5.0 tons / ha.
Brie Paddy 63: Drought tolerant variety of Bona Aus season. The height of the tree is 100-105 cm. Because of its hardness, the tree does not tilt even after the paddy is ripe. The color of the grains is reddish which is similar to the local cuticle variety. The rice is medium thick and white and the rice is crispy. Lifespan is 105 days. Yield 4-5 tons / ha.
Brie Paddy 75: This high yielding variety is suitable for transplanting aus season in the eastern part of the country including Comilla region. As waterlogging is tolerable, it is possible to cultivate even in relatively low lying areas during Aus season. The height of the tree is 110 cm. Lifespan 108-110 days. Ka Ð tough. The rice is medium long and thin and the rice is crispy. Yield 4.5-5.0 tons / ha.
Brie Hybrid Paddy 6: The only hybrid rice variety cultivable in Aus season. Ropa is more productive than other varieties prevalent in Aus season, yield is 7.5-60 t / ha. The height of the tree is 100-105 cm. Because it is hard, it does not tilt. Lifespan 105-110 days. The shape of the paddy is slender, long and the rice is neat.
Sowing of seeds: Seed sowing in the main land of Bona Aush is from 25th March to 20th April, sowing in the seedbed of transplanted Aush is from 30th March to 30th April.
Seed rate: 10 kg / bigha for scatter sowing and 6 kg / bigha for row sowing.
Age of seedlings Planting: 15-20 days. Seedlings should be planted from 15th April to 10th May. Seedlings should be planted at a distance of 6 inches by 6 inches in each bunch.
Fertilizer management (per bigha): Urea-15 kg, DAP-6 kg, MP-10 kg, Gypsum-5 kg ​​and Zinc 0.8 kg. At the time of last cultivation 1/3 percent urea and all other fertilizers should be applied. In the 2nd installment urea should be applied 4-5 days after planting (usually 15-16 days after planting) and 5-6 days before the arrival of the 3rd installment kaichothor. Only gypsum and zinc should be applied if the soil is deficient in sulfur and zinc. On the other hand, in the case of woven aus, urea should be applied in two equal installments. The 1st installment should be applied at the time of last cultivation and the 2nd installment should be applied 30-35 days after sowing of paddy.
Weed control: It should be kept weed free for 30-35 days usually by hand, with the help of weeder or using herbicide. Bensulfuran methyl + acetachlor, mefenacet + bensulfuran methyl etc. herbicides should be applied within 3 days of planting as pre-emergency herbicides in transplanted rice paddy. Pre-emergency herbicides for sown aus should be applied within 2/3 days of sowing of any herbicide of pendamethylene, oxidyrgil and oxidation group. In case of transplanted / sown aus paddy, post-emergence herbicides should be applied after the emergence of weeds in the herbaceous lands of Bispiribek Sodium, Bensulfuran Methyl, Diafimony, Ethoxysulfuran and Phenoxlam Group. After understanding the condition of the weeds, weeding should be done once in 35-40 days.

 
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