Key points of High-yield cultivation techniques of rapeseed

Rape is planted all over our country, and it is one of the main oil plants. The oil content of seeds is very high, probably more than 40%. The tender leaves and pedicels of rape can be eaten as vegetables, that is, the rape moss we usually eat, which tastes very crisp. Rape seeds also have a certain medicinal value, leaves can be externally applied to reduce swelling. Let's take a look at the high-yield cultivation techniques of rape.

1. Seed selection

Whether rapeseed is high-yield or not is also critical, because the geographical environment and climate types of each place are different, and the varieties selected should also be different. Generally speaking, rape varieties with strong disease resistance, good adaptability and high yield should be selected.

2. Sowing time

The sowing time of rape depends on the variety of rape, the climate of the planting area, the period of transplanting and so on. Winter varieties should be sown earlier, while spring varieties should be postponed appropriately. We should pay attention to the grasp of the time node, early sowing and too late sowing will affect the growth of rape.

3. Planting density

The density of rape transplanting should be determined according to the planting scale of rape. Generally, the ability of cold resistance will decline after planting, and it should be planted according to the appropriate sparse point of strong seedlings. Before planting, human and animal manure is used as base fertilizer, which is evenly mixed with the soil for soil preparation.

4. Water and fertilizer control

After sowing rape, if the seedbed is too dry, water should be replenished in time, and planting density should be controlled when two leaves grow into one heart. Attention should be paid to the combination of water and fertilizer, and the phenomenon of excessive growth of rape seedlings should be prevented according to the reasonable control of rape seedling growth.

5. Transplanting

Rape seedlings can be transplanted when they have five to seven true leaves, usually from the end of October to the first ten days of November. It is necessary to re-apply base fertilizer, increase phosphorus and potassium fertilizer, and apply boron fertilizer reasonably. When buying borax, you should pay attention to its effective content, if the content is very low, it will not achieve the effect of use.

After deep ploughing, rake the land flat, and the density of transplanting is about 7,000 to 8,000 trees per mu. When transplanting, we should choose when it is sunny, transplant with soil as much as possible to reduce the damage to the root system. After transplanting, you should immediately irrigate the fixed root water and pay attention to maintenance.

6. Post-transplanting management

If the leaves of rape seedlings are more than six green after transplanting, choose sunny weather for rape weeding. Herbicide must be used according to the instructions, do not leak spray, re-spray.

Wait until November when it is necessary to carry out appropriate topdressing, poor growth should be early fertilization, more fertilization, specifically according to the growth of rape seedlings.

7. Pest control

The common diseases and insect pests in the process of rape growth are Sclerotinia sclerotiorum, jumping beetles, aphids and so on. We should pay attention to timely observation of rape leaves to see if there are corresponding symptoms, timely medication or physical control.