Introduction of rapeseed planting technology!

Rapeseed is the seed of crop rapeseed, and it is also one of the main oil crops and honey crops in China, and it is also planted all over the country. Let's learn about the planting techniques of rapeseed.

Introduction of rapeseed planting technology!

1. Selection of land and seed

Rapeseed with high yield, high quality ("double low", high oil content, etc.), high resistance (lodging resistance, resistance to Sclerotinia sclerotiorum, etc.) should be selected. In addition, the soil should be loose and fertile, the drainage and irrigation is more convenient, the terrain is more flat, and the dry soil or vegetable garden soil which has not been planted rape for more than 2 years is used as seedbed land.

two。 Soil preparation and fertilization

The seedbed should be carefully arranged before sowing. 1.25 tons of pig and cow manure per mu of farm manure, 20 kg of ammonium bicarbonate, 25 kg of calcium magnesium phosphate fertilizer and 6 kg of potassium chloride should be mixed and piled for about 10 days, combined with seedbed finishing as soil base fertilizer.

3. Sowing and raising seedlings

The sowing time of winter rape is in the first and middle of September (spring rape is planted in April), and it is sown evenly according to 1 kg borax + fire soil ash + rape seed 0.4-0.5 kg per mu. Before sowing, the border should maintain a certain degree of humidity and be irrigated in time in case of dry weather, otherwise it will greatly affect the emergence rate. After sowing, cover it with fiery soil ash, and spray Acetochlor on the box while it is wet to control the growth of weeds.

4. Seedling stage management

After turning green in spring, it is necessary to carry out mid-ploughing and weeding, prevent soil consolidation, preserve soil moisture, eliminate the competition of water and fertilizer, and spray new high-fat film to enhance the above-mentioned functional effect. Zhuangsuiling should be sprayed at the bud bolting stage to enhance the smooth transport of nutrients, strengthen the stalks of seedlings, promote the absorption of nitrogen, phosphorus and potassium and the supplement of trace elements, facilitate the formation of bolts, promote the rapid and robust growth of pods, and lay the foundation for a good harvest.

5. Field management

Weeding: check seedlings and fill gaps in time after transplanting, and cultivate soil and roots once in combination with ploughing and weeding before the Winter Solstice.

Fertilizer and water: after transplanting for 7-10 days, each mu of land was irrigated with 2 kg urea and 0.6 tons of manure and urine per mu. The boron fertilizer sprayed before the rape blossoms should be evenly sprayed according to 0.2 kg of borax and 30 kg of water per mu.

Pest control: in the seedling stage, we should strengthen the control of pests such as cabbage green insect, aphid, ground tiger, mole cricket and downy mildew, the flowering stage is mainly to control Sclerotinia sclerotiorum and prevent overgrowth, and the green pod stage is mainly to strengthen the control of aphids and white rust.

Rape should be harvested and dried in time after ripening. In case of overcast and rainy weather, drying, sealing and other methods should be used to prevent its mildew.