High-yield cultivation and management techniques of rapeseed

Rape is a very common leafy vegetable in our daily life. There is a wide range of planting area in our country, when planting rape, if it is planted on a large scale, then the yield must be very concerned about. If you want high yield of rapeseed, some cultivation management is indispensable. So what exactly is there? The following editor brings you rape high-yield cultivation and management techniques, let's have a look!

1. Prevent drought

If rape encounters drought after sowing, it will have a great impact on the germination rate of rape seeds, resulting in a decrease in rape yield. Therefore, we should often water the seedbed after sowing to keep the seedbed soil in a moist state. Before rape emergence, it should be watered every morning and evening, and if it is still dry after emergence, dilute dung water should be poured in time when the seedling page wilts. However, do not water too much, if there is too much rain, then it is necessary to do a good job of ditch drainage, while properly sprinkling plant ash to reduce the temperature of the seedbed.

2. Seedling setting in the morning

In the rape seedling stage, in order to avoid excessive seedling density, small growth space affect each other's growth, snatch light and so on. It is necessary to do a good job of fixing seedlings as soon as possible, if the seedlings are set too late, then it will affect the strong seedling rate of rape, resulting in a decline in yield. Therefore, it is generally necessary to enter the seedlings when they have three leaves and fix them when they have five leaves. In the interseedling, we should pay attention to keep the strong seedlings and remove the weak seedlings. And in the seedling, but also to do a good job in the weeding of the seedling bed to avoid the emergence of grass shortage in the seedling bed.

3. topdressing at the right time

Topdressing is the key to ensure the high yield of rapeseed. After the emergence of the first true leaf and flat expansion of rape seedlings, topdressing should be applied in time to meet the nutritional needs of rape growth. Usually, about one mu of 1500kg should be applied to low concentration of human feces and urine. Then, a week before transplanting, the same amount of mature farm manure or 4 jin of urea was applied. In the middle, topdressing should be made according to the actual growth of seedlings. If the growth is normal, then there is no need for topdressing, and if there is chlorosis and the growth is slow, then the right amount of urea should be applied.

4. Pest control

Pest control of rape is also very important. At the same time, diseases and insect pests are also one of the main reasons that affect the yield of rape, especially in the seedling stage. The common pests are aphids, cabbage insects and so on. These pests will cause serious harm to the leaves, roots and other parts of rape. Therefore, we must be rational use of drugs for prevention and treatment, can use malathion emulsion and other agents. Then, a week before transplanting, an appropriate amount of carbendazim, topiramine and other agents should be sprayed to control downy mildew to ensure the normal growth of rape.

The above is a brief introduction to the high-yield cultivation and management techniques of rape. That's all for today's introduction. This article is for reference only. I hope it can help you all.