Rapeseed rape nursery methods: preparation of seedbed, preparation of seeds, timely sowing, field management; time: spring.

I, method

1, prepare seedbed

Oilseed rape for seedling nursery, should be prepared in advance seedbed, choose fertile soil, deep soil, drainage and irrigation is convenient plots, the soil is best slightly acidic. Before sowing, the land preparation, land preparation requirements for fine, flat, according to the size of the plot to dig a good drainage ditch. Into the soil into the bottom fertilizer, mainly organic fertilizer, increase the amount of phosphorus and potash fertilizer, per acre into the 1000 pounds of well-rotted farmyard manure, but also need to be applied to the compound fertilizer, the fertilizer and the soil is fully mixed.

2, prepare the seed

According to the local climate, their own preferences to choose a good variety of oilseed rape, ready for the seed. You can collect mature seeds yourself or buy fresh seeds directly. Screening the seeds that are full of seeds, full size and fresh, you can do the germination treatment in advance, thus improving the germination rate of seeds.

3, timely sowing

China is divided into winter oilseed rape and spring oilseed rape, winter oilseed rape is usually planted at the end of September, to the end of May harvest, spring oilseed rape is planted at the end of April, harvested at the end of September. Oilseed rape can be direct seeded, using the method of strip sowing, the seeds are relatively small, mixed with fine sand before sowing, mixing the seeds and then evenly sowing the seeds.

4, field management

When the rape grows to 15-20 cm, you can plow and weed, remove the weeds in the plot to avoid competition for nutrients. When the oilseed rape grows to 40 cm, it can be fertilized, and farmyard manure can be applied. According to the dry and wet conditions of the soil, taking into account the water needs of the seedlings, you can water water regularly.

Second, time

Oilseed rape seedling can be carried out in March every spring, when the temperature is gradually rising, more in line with the oilseed rape seed germination requirements for temperature, so you can seedling in March. You can also observe the weather before planting seedlings, and choose sunny and cloudy weather which is most suitable for oilseed rape planting.

Planting rapeseed notes

1, rapeseed is more like a cool climate crops, cold resistance is very strong. Rape seeds can germinate above four or five degrees, and the higher the temperature, the shorter the time it takes to germinate. If the temperature difference between day and night is greater during the flowering and fruiting period of rape, it will be more favorable to its growth.

2, rape's growth time is relatively long, the water needed during the growth period is more, and in different growth stages, the demand for water is not the same. Growing period moisture for about sixty-five percent, flowering period for about 80%, in the fruiting period for about 70% can be. Oilseed rape requires a deeper layer of soil and more organic matter, better soil fertility, and the permeability of the soil should be good.

3, the most suitable soil for rapeseed is weakly acidic soil or neutral soil, in this soil can increase the yield of rapeseed. Sowing time: early spring sowing is the best, usually in the middle and late March sowing. To choose the best varieties, before sowing the land is now properly watered, and then evenly sprinkle the seeds in the ditch dug in advance.

Refer to Baidu Encyclopedia-European rape