In the oilseed rape generally includes cabbage-type rape, mustard-type rape and kale-type rape. 1, cabbage-type rape: plants are usually relatively short, oval leaves and in the edge of the obvious zither-shaped notch, the appearance and ordinary cabbage is very similar. 2, mustard-type rape: plants are tall, the foliage is wrinkled and full of prickly hairs and light wax powder, barrenness is strong, and oil content is usually high. 3, kale-type rape: the body is relatively large, can be used to produce edible oil and its cake meal can be used as animal feed, suitable for cultivation in the sunny and the animal feed. 3, kale type rapeseed: plant body is relatively large, can be used to produce edible oil, and its cake meal can also be used as animal feed, suitable for cultivation in the sun and easy drainage of the soil, usually can be harvested in the yellow ripe period.

A, rape including which dishes

1, cabbage type rape

(1) plant body is generally relatively small, the leaf blade is generally oval, thin and smooth, in the edge of the obvious gin-like notch, in the top of the prickly hairs and covered with a thin layer of waxy powder.

(2) generally can be divided into the northern small rape and the southern oil cabbage, which is medium-sized, broader leaves, although resistant to flooding, barren, but poor disease resistance, and the appearance of the ordinary cabbage is very similar.

2, mustard-type oilseed rape

(1) tall plants, in the leaf blade has obvious long stalks, leaf surface wrinkled and full of prickly hairs and light wax powder, small seeds, the color is generally more golden yellow or dark red, the oil content is usually high.

(2) It should be noted that although mustard-type oilseed rape is characterized by high barrenness tolerance, the yield is usually low.

3, kale-type oilseed rape

(1) plant body is relatively large, medium development, compared with cabbage-type oilseed rape, mustard-type oilseed rape, kale-type oilseed rape is the highest seed yield species, not only to produce edible oil, but also its cake meal can be used as animal feed.

(2) In cultivation, it should be planted in sunny soil with convenient drainage, and during cultivation, it needs to be fertilized reasonably to ensure sufficient nutrients, and in the yellow ripening period, it is the best harvesting period of rapeseed.

Second, the common pests and diseases of rapeseed

1, mildew and frost disease

(1) in the onset of the disease, the leaf surface will appear yellowish green small spots, and then will expand and become restricted by the veins of the polygonal or irregularly shaped spots, the color of the color of yellowish-brown, in the disease of the spot on the back of the leaf there is white frosty mildew, and the disease slowly turned into a brown spot, and then the disease part of the leaf will turn into a brown spot, and the disease part will turn into a brown spot, and the disease part will turn into a brown spot. Slowly become brown spots, in the case of severe disease, the leaves will be yellow and fall off.

(2) Usually you can use ammonium clonidine 200-300 times liquid, diclofenac ammonium 700-1000 times liquid, aluminum ethylphosphate 300 times liquid and other agents for prevention and control.

2, mycosis

(1) After the onset of the disease, black rat feces-like fungal nuclei will be formed in the stem of rapeseed, and the diseased plant is often from the diseased stem above the precocious death.

(2) Generally, you can use 40% stripe blight wettable agent 1000-2000 times liquid, 50% quicklime wettable agent 1000-3000 times liquid and other agents for prevention and control.

3, powdery mildew

(1) in the occurrence of powdery mildew degree is relatively light, the plant's growth and flowering is usually easy to be hindered, in the occurrence of serious, the leaf green yellowing early withered, the plant will be deformed, the floral abnormalities, until the plant died.

(2) Generally you can use 50% sulfur gel suspension 150-300 times liquid, 30% solid stone sulfur compound 200 times liquid and other agents for control.

4, aphids

(1) aphids are generally dense in the back of the leaves, cabbage, stems and branches, as well as the flower axle sap, and then it will be easy to make the leaves curl and shrink, slowing down the growth of seedlings.

(2) Generally, you can use 10% diazinon emulsion 1000 times, 50% aphid fog wettable powder 3000 times, 20% oxytetracycline emulsion 1000-2000 times and other agents for prevention and control.

5, vegetable powder butterfly

(1) in the vegetable powder butterfly 2 years ago, generally can only nibble on the leaf flesh and leave a layer of transparent epidermis, and in the age of 3 years, usually able to nibble the whole leaf, in the occurrence of serious, only the veins left, and affect the growth and development of the plant.

(2) Generally, you can use 50% phoxim emulsion 1000 times, 20% triazophos emulsion 700 times, 25% aicarb emulsion 8000 times and other agents for control.