Sunflower oil is the main crop. Sunflower seeds contain 40-45 percent of beneficial lenolic acid and there is no harmful erosic acid. Surja Mukhi is widely cultivated in different countries of the world. Since 1975 the farmers of Bangladesh started cultivating it. It is now widely cultivated in different districts of Rajshahi, Jessore, Kushtia, Natore, Pabna, Dinajpur, Gazipur and Tangail. Surja Mukhi can be cultivated throughout the year. But in the month of Agrahayan (mid-November to mid-din) cultivation yields good yield. The temperature in the northern and western regions of the country is 15 degrees Celsius. If it is below 10-12 days after the seed is sown. It can be cultivated in Kharif-1 season, ie Jyoth (mid-April to mid-May) month.
Build land: Surja Mukhi's land is cultivated deeply. Land should be sprayed 4-5 times with soil and soil.
Caste Selection: Sunflower kirani (DS-1) variety was derived from the selection of germplasm and was approved in 1982. The height of this tree is 90-110 cm. Seed lengthy and flattened. One thousand seeds weighing 60-65 grams Seed color black Each tree has a medium-sized flower. It takes 90-100 days to harvest crops after sowing. 1.3-1.5 tons of crop is available in every hectare.
Sowing method and seed rate: Sunflower seeds are sown in rows. Rows range from 50 cm And the distance from the tree to tree is 25 cm Is to keep. If seed sowing is done, then 8-10 kg seeds of hectare are required.
Fertilizer application: 180-200 kg per urea per hectare;
150-100 kg per hectare of TSP,
120-150 kg per hectare of MP,
Gypsum to hectare 120-170,
8 kg per zinc sulphate per hectare,
Acid 10-12 kg per hectare,
Magnesium sulphate per hectare is 80-100 kg
Half of the urea fertilizer and the remaining fertilizers should be mixed with soil after the last cultivation. The remaining half-urea will be divided into two parts by 20-25 days after the first part of the seedling and second to 40-45 days or before flowering.
Diseases and remedies: In our country, the leafy disease disease is particularly notable in sunflower disease. Sunflower disease is caused by an attack of alfneria heliastium fungus. At first, the gray or dark brown spots of the leaves have uneven spots. After mixing the stains, they made big marks. Finally, the entire page is shaken.
In addition, sunflower acetic disease is the root rot disease. This disease is usually due to cyclerosurium Ralfi fungus. Acacia - Scaleroseium like fungal mycelium and spheroidal grains, such as white cotton, can be seen. At first the trees fall down slightly. Within a few days, all trees fall and die.
Due to remedies disease tolerant varieties must be cultivated. Immediately after the disease occurs, mixed with Rovral-50WP (2%) water in the soil after 2-3 days after 10 days, the incidence of the disease decreased. After the crop is destroyed or destroyed by the decomposition of the tree, the source of this disease is damaged.
As the remedy of sunflower root, the spread of this disease can be prevented through the treatment of Vitovox-200 with the help of the field. Usually, the fungus can not survive if the water is wet with water. So, after the disease attack, the incidence of flood irrigation can be reduced in land. In the absence of suitable host plants due to crop failure, prevention of pre-attacking disease can be prevented.
It takes about 90 to 110 days for sapling to harvest crops.
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