Why does the oily wheat cabbage grow smaller and smaller, and what is the reason why the oily wheat

There are many influencing factors, if it is heavy stubble, it may be the cause of soil-borne diseases, and the soil needs to be disinfected, it is recommended to use Fertile Soil Net @ Subtle Legion to eliminate pathogens, prevent the spread of soil-borne diseases, and affect the growth of rapeseed seedlings; The seeds should be soaked before sowing, and Ye Liqin @ Subtle Legion should be soaked for 4-12 hours to improve the germination rate of seeds, emerge seedlings, and improve the stress resistance of rapeseed seedlings; During the growth period, the water and fertilizer of oilseed rape should keep up, and water and top dressing in time.

Summary. The leaves of the rape are thin and wide, the edges of the leaves have fine teeth, and the surface of the leaves has a greasy feeling, so its leaves will spread out easily, which is why it grows very loose.

The leaves of oilseed wheat are thin and wide, the edges of the leaves are noisy or have fine teeth, and the surface of the leaves has a greasy feeling, so its leaves will be easier to spread out, which is also the reason why it grows very scattered.

Can you add, I don't quite understand it.

Reasons:1The seeds of lettuce are too small and are easily blown away by the wind; 2.

The seeds of lettuce are too light and easily washed away by rain; 3.The seeds of rape are too thin and are easily mixed with other seeds in the soil due to hail; 4.The seeds of lettuce are too brittle and are easily plucked by the roots of other plants.

Workaround:1Before sowing, you can put the seeds of oilseed lettuce into a moist paper towel to allow the seeds to absorb enough water to reduce the possibility of wind blowing; 2.

After sowing, the sowing area can be covered with a moistened paper towel to reduce the likelihood of rainwater washing away the source reed; 3.After sowing, the sowing area can be covered with a moistened paper towel to reduce the possibility of other seeds being mixed; 4.After sowing, the sowing area can be covered with a moistened paper towel to reduce the likelihood of root plucking from other plants.

Personal Tips:1When sowing oilseed rape, it is necessary to pay attention to controlling the sowing depth of the seeds, so as to avoid the seeds being blown away by the wind; 2.

When sowing oilseed and wheat rape, it is necessary to pay attention to controlling the sowing density of the seeds, so as not to wash away the seeds by rain; 3.When sowing oily wheat vegetables, it is necessary to pay attention to controlling the sowing distance of the seeds, so as to avoid the seeds being mixed with other seeds; 4.When sowing oilseed lettuce, it is necessary to pay attention to controlling the sowing distance of the seeds, so as not to uproot the seeds by the roots of other plants.

Related knowledge: Oilseed lettuce is a nutritious vegetable, which has the effects of antioxidant, anti-cancer, hypolipidemic and blood pressure, and is a healthy food. The sowing requirements of oilseed rape are relatively strict, and the seed sowing depth, sowing density, and sowing distance are required to be controlled well to ensure the normal growth of oilseed rape.

Excessive planting density, insufficient light, and too much fertilizer and water are all factors that contribute to the growth of crops. After solving the above problems, apply more phosphorus and potassium fertilizers, and spray mequat appropriately.

or paclobutrazol. Low temperature management, the sowing period is appropriately delayed, and the facilities control the night temperature to below 15 degrees to control the seedling growth, effectively control the elongation of stem nodes and leaf cells, and allow more nutrients to flow back to nourish the roots. Only when the roots are strong and unfailing can we produce stable and high yields.

Generally speaking, the suitable temperature for seed germination of cold vegetables such as celery, coriander, spinach and so on is 15-20, and the suitable temperature for seedling growth is 18-22 during the day and 10-12 at night. Illumination. The place where the light is not shaded is the same as the light intensity.

Where there is a good place, there will be a difference in the same field. You can observe it yourself...Manure. There is more nitrogen, and the seedlings are raised quickly, but the seedlings are not strong.

<> normal conditions may be related to insufficient light or high night temperature, and one or both must be used, and it is necessary to supplement the light or reduce the temperature at night. The second situation is related to management errors, in the incorrect time with more fertilizer and more water, the temperature is high and the growth is not normal, the weather is sunny, the temperature difference between day and night is large, and the possibility of seedling growth is small, but the plant spacing of factory seedlings is small. When the true leaves are 3-4 years long, the seedlings actually grow a lot in a day and night.

If left unchecked, the seedlings will grow quickly. High density. This is the stress response of the plants themselves in order to survive and compete for limited resources.

For example, the amount of wheat sowing is too large, and three cherry peppers.

Seedlings are sown too densely, which will cause vigorous seedlings. Therefore, it is necessary to ensure a reasonable sowing rate or do a good job of thinning seedlings. To prevent growth, the main measure is to start from the cause of its occurrence.

One is early seedlings, covering the soil in stages, and hoeing in the middle of the cultivator. Reduce the night temperature appropriately. Other adjunctive measures are the spraying of hormone regulators that control growth, but the use of other methods to take the growth under normal conditions may be related to insufficient light or high night temperature, and one or both must be used, and it is necessary to supplement the light or reduce the temperature at night according to the cause.

The second situation is related to management errors, using more fertilizer and water at the wrong time, and the temperature is too high to grow.

The main reasons for the growth of rapeseed seedlings are high temperature, high humidity and insufficient light. The main reason for the aging of seedlings is that the seedling age is too long, and the squatting seedling is too controlled, so in the growth, the seedling period should not be too long, and the seedling should be given an appropriate temperature, so that the seedling can not grow under low temperature conditions for a long time.

It may be that the nutrients are not in place, and the temperature at night is too high, and the weeding is not done regularly, which can cause these conditions to occur.

The function of potassium dihydrogen phosphate is mainly for the reproductive growth of crops, but potassium dihydrogen phosphate can also be used in the vegetative growth period of crops to supplement the lack of phosphorus and potassium elements in crop growth. The nutrients of potassium dihydrogen phosphate are 52% phosphorus and 34% potassium, which have a certain effect on supplementing the phosphorus and potassium elements required for the reproductive growth of crops. Because of the effect of phosphorus in promoting flowering and potassium fruit expansion, spraying potassium dihydrogen phosphate in the reproductive growth period has a certain effect on promoting flower bud differentiation, prolonging flowering period, promoting early maturity, increasing yield and improving quality of crops.

Planting details.

The first step is germination.

Germination is required for sowing during high summer temperatures. Above 25 or below 8 does not germinate.

Soak the seeds in water overnight, then remove them on a damp paper towel and seal them in a cool place. Sowing begins after 80% of the seeds are white.

Step 2 Sow seeds.

Sow the white seeds in a well-watered pot or garden soil and cover the soil to keep the soil moist. In other seasons when the temperature is suitable, the seeds can be sown directly. The soil is sprayed with moisture to maintain soil moisture and germinate in about a week.

A week or so!

The growing period of oilseed lettuce is about 1 month.

It is heat-resistant, cold-tolerant and adaptable.

DU, which can be planted in spring and harvested in summer, harvested in summer and harvested in autumn, planted in early autumn and harvested before New Year's Day, and produced in greenhouses in winter. Generally, greenhouse production, before the arrival of the cold winter is suitable to breed strong seedlings, that is, the seedling period to avoid the cold winter season in January.

Sowing seedlings in the shed in early spring 1 March, 2 furrows are built in the standard shed, 1 ditch is opened in the middle, deep furrows are built, the bottom water is watered, the seeds are sown in the furrow, covered with seed mud, and the plastic film is tiled (2 layers of film L layer mulch), and the seedlings emerge in 10 15 days.

Harvesting begins about a month after planting, or from about 15 leaves, usually in the morning, when the fully grown, thick, brittle green leaves are broken off by hand.

Oilseed rape is cultivated in greenhouses in autumn and winter, and it takes only about 40 to 45 days from planting to harvesting.

Oilseed lettuce planting time.

The adaptability of oilseed wheat rape is particularly strong, with good heat and cold resistance, can be planted all year round, under normal circumstances, we can plant in the spring and harvest in the autumn, we can also plant in the summer and harvest in the autumn, and can also be planted in the early autumn before New Year's Day.

In addition, rape can also be cultivated in greenhouses in autumn and winter, only 40 45 days from planting to harvesting, and the yield per mu can reach more than 3000 kg, and the planting benefits are quite good.

Growth habits of oilseed lettuce.

Rapeseed germination conditions are not high, generally more than 4 can be successfully germinated, if the temperature is between 15 20, rapeseed only needs 3 4 days to germinate, if the temperature exceeds 30, rapeseed will not germinate. The most suitable temperature for the seedling stage of oilseed lettuce is 12 20, if the temperature exceeds 24 during the day and the temperature is above 19 at night, it is easy to lead to unripe sprouts of oilseed lettuce.

Cultivation and management techniques of oilseed wheat rape.

1. Soil preparation and furrowing: 3500 4000 kg of rotting organic fertilizer, 20 25 kg of phosphate fertilizer, 40 50 kg of nitrogen fertilizer, 10 15 kg of potassium fertilizer are applied per mu before planting of rapeseed, the width of the furrow is 1 meter, the plant row spacing is 10 10 15 cm, and 450,000 plants are planted per mu.

2. Cultivating and weeding: After planting and slowing down the seedlings, combined with watering and applying a small amount of fast-acting nitrogen fertilizer 1 or 2 times, 5 kg of urea or ammonium sulfate per mu is generally applied to promote the growth of plants.

3. Timely buckle shed: oily wheat cabbage is a fast-growing leafy vegetable, the appropriate growth temperature is 18 25, when the night temperature is lower than 12, the shed should be buckled in time, and the temperature and relative humidity in the shed should be adjusted in time after the shed, and the relative temperature in the shed is generally less than 90%.

4. Reasonable top dressing: clean and hygienic should be maintained in the cultivation of oilseed rape, and foliar spraying should be carried out 3 4 times with potassium dihydrogen phosphate and urea solution in the early and middle stages of growth. Top dressing 2 3 times during the whole growth period, apply 5 10 kg of urea or 10 kg of ammonium sulfate per mu.

5. Pest control: The insect pests of oilseed and wheat vegetables are mainly aphids, which can be sprayed with 800 times of 40% dimethoate emulsifiable concentrate. The diseases are mainly downy mildew and soft rot, which are controlled by 300 500 times of 70% mancozeb wettable powder and agricultural streptomycin spray.

6. Timely harvesting: When the number of leaves of rape reaches 30 34 pieces, the plant height is 45 48 cm, and the development degree is 60 69 cm, it can be harvested at one time at 2 3 cm from the ground, and the old leaves and diseased leaves are removed after harvesting, and the winter market is carried out in time.

Oilseed rape can be sown in spring, can be sown in summer, can be sown in autumn, can also be cultivated in winter, early in January and March in the shed seedlings, 10 15 days of seedlings, in case of low temperature seedlings time longer. In summer, seedlings are raised in the open field in April and June, and the seeds are soaked in water for three hours, and the seeds are sown after they are dry. In autumn, sowing seeds in 7 September, the seeds should be soaked in water to promote germination, and they can be sown after the buds are 75% long.

In winter, it can be sown in November and December, watered before sowing and then sown, and the mulch film is removed after the emergence of seedlings. Because the adaptability of oilseed and wheat cabbage to the environment is relatively strong, so the requirements for the land are not particularly strict, it can be said that as long as it is a piece of land and a little careful care, it can grow very well. Planting in loose, fertile, and watery places with high organic matter content is conducive to its growth.

Seeds of rape cannot germinate in an environment higher than 25 or 18, so they need to be germinated in the summer when the temperature is high. During the seedling period, we must pay attention to its light and moisture, and do not expose it to high temperature for too long during the seedling period. Oilseed wheat is a very fast-growing leafy vegetable, and it takes only one and a half to two months from sowing to harvesting.

Oilseed wheat rape is heat-resistant, cold-resistant, adaptable, cold-tolerant, moisture-loving, resistant to diseases and pests, sweet and crisp quality, less fiber, and suitable growth temperature of 20-25.

The most suitable temperature for the growth of oilseed lettuce is about 20, and the growth will stop if it is lower than 10 or more than 25. Oilseed lettuce can be grown all year round, but in winter it needs to be done in greenhouses. To maintain oilseed and wheat vegetables, it is necessary to ensure that the fertilizer and water are sufficient, and the ambient temperature must be controlled.

Oilseed lettuce is rich in nutrients and contains a large number of vitamins and trace elements.

Oily lettuce belongs to the genus Lettuce of the Asteraceae family, its taste is tender and nutritious, and it is a vegetable that we often eat in our lives. Oilseed rape has a large area of cultivation in China, and the most suitable temperature for the cultivation of oilseed rape is about 20. If the temperature is below 10 and above 25, the plant will stop growing.

The adaptability of rapeseed is strong, and most of the cultivation of plants is carried out in the spring, summer and autumn of each year, spring planting and summer harvest, summer planting and autumn harvest, early autumn planting and harvesting before New Year's Day, and late autumn and winter planting need to be carried out in greenhouses.

The growth rate of oilseed wheat rape is fast, the demand for fertilizer and water is higher, it is necessary to replenish water and nutrients in a timely manner, and it needs to be watered every day in the peak growth season, and fertilized once in about 10 days to ensure the growth of the plant. In addition, lettuce likes a cool environment, and too high temperature will affect the growth of the plant.

The nutritional value of oilseed wheat cabbage is very high, it contains a large amount of vitamin A, vitamin B1, B2, as well as calcium, iron and other trace elements, with Qi Zheng to reduce cholesterol, dry and moisturize the lungs and other effects, mainly raw food.