What is good to grow on the land where tobacco leaves have been cultivated for many years

Land that has been cultivated for a long time can grow watermelons.

Watermelons love sandy soil. Happy sunshine. Prefer drought rather than waterlogging.

The growth and development of watermelon requires a higher temperature, heat resistance but not low temperature, the suitable temperature for growth is 18 32, and requires a certain temperature difference, vegetative growth adapts to lower temperature, and fruit setting and fruit development need higher temperature. The appropriate temperature for seed germination is 25 30, and the temperature that does not actually prevent seed germination is 20 25. High temperatures above 35 cause crust cracking, reducing germination rate and germination potential; High temperatures accelerate germination, but the hypocotyl elongates.

The germination rate of newly harvested seeds is low, and the suitable temperature range for germination is narrow, and germination can only be achieved at 30. After a period of storage, it can germinate smoothly at 20 25 years. The root growth temperature of watermelon was high, the suitable soil temperature was 28 32, the lower limit temperature was 10, the root growth stop temperature was 8 10, and the root hair stop temperature was 13 14.

Lower temperatures are conducive to the differentiation of female flowers, the early appearance of female flowers, and the increase in the proportion of female flowers, while in summer above 22 25, female flowers do not occur within 15 nodes. The development of flower buds requires a high temperature for both male and female flowers, taking 28 days at 10 and about 20 days at 12. The suitable temperature for watermelon pollen germination is 25, and the minimum daily average temperature is 20 21.

The pollination and fertilization process requires a high temperature, preferably 30 °C. Higher temperature, sufficient sunshine and suitable humidity are beneficial for pollen germination, pollen tube elongation, and the number of fertilized embryos. On the contrary, low temperature and low light have a certain effect and lead to an increase in sterile embryos. Watermelon fruit development requires a higher temperature, and the lower limit of the temperature during the fruiting period is 15.

The fruit developed under low temperature conditions is oblate and round, with shoulders and corners, thick and hollow skin, and low sugar content, which seriously affects the quality of the product. Watermelon is native to the African continental climate, which requires a certain temperature difference between day and night, and the assimilation effect is strong in 25 30 during the day, and even in the 40 high temperature, there is still a certain assimilation effect. The lower night temperature is conducive to the transportation of assimilation products and reduces the consumption of nutrients by respiration, thereby increasing the sugar content of the fruit and improving the quality.

In summer, the surface temperature of watermelon is above 40, and the leaf temperature is 33 36, which is lower than that of other melon crops, which may be related to the large transpiration of watermelon leaves. The heat tolerance of watermelon is also manifested in the high temperature resistance of seeds, so this characteristic can be used for seed dry heat treatment, accelerate seed ripening, improve germination rate, kill the source of wilt carried by seeds, passivate viruses, etc., so as to achieve the purpose of disease prevention. The heat tolerance of watermelon is related to soil moisture conditions, such as low soil moisture content, limited root absorption and foliar transpiration, further increase in leaf temperature, leaf withering and difficult recovery, and leaf protein coagulation resulting in scorching.

There is data that the coagulation temperature of watermelon protein is 60.

Continuous cropping will make tobacco nutrient deficiency and imbalance, and susceptible to diseases and insects, so that the yield and quality will decrease, so reasonable crop rotation is an important measure to ensure the yield and quality of tobacco leaves. Tobacco crops are preceded by Solanaceae and Cucurbitaceae crops, preferably gramineous crops, rape (beware of aphid and viral disease infection) and legumes (beware of soil fertility and disease). Rotate once every 2-4 years.

The way it is done varies depending on the climate, soil, growing season, etc. The main forms of paddy field rotation are: flue-cured tobacco, rape or wheat, rice, broad bean or wheat; Tobacco Late Rice Green Manure or Oil Lai Early Rice Late Rice Green Manure Early Rice Late Rice Green Manure or Rape.

The main forms of dryland rotation are: flue-cured tobacco, wheat or green manure, corn (soybean), rape or barley; Spring smoke, sweet potato, winter leisure, peanut, winter leisure; winter smoke, early rice, late rice; winter tobacco, peanut, late rice; Winter smoke, broad beans, early rice.

Soils containing bio-organic fertilizers are more suitable.

Bio-organic fertilizer is an organic fertilizer made from organic solid waste (including organic waste, straw, human, livestock, poultry manure, cake meal, agricultural and sideline products and solid waste from food processing) after microbial fermentation, deodorization and complete decomposition.

Rich in a variety of functional microorganisms and rich trace elements, it can improve the soil structure, indirectly kill roundworm eggs and root nematodes, play a role in nutrition, conditioning and health care for crop growth, and let the land absorb organic matter to play a greater role.

It is suitable for the growth of flue-cured tobacco under various soil types.

The key is to use the soil wisely and take care of it. Adhere to the development direction of modern organic tobacco agriculture, rational application of high-quality and high-efficiency organic fertilizer in tobacco fields, the implementation of green manure to cover the green, the implementation of straw returning to the field, the cultivation of the soil environment for the production of high-quality tobacco leaves, provide a favorable soil environment for the growth of flue-cured tobacco, lay a solid foundation for the development of modern tobacco agriculture, and improve the quality of tobacco leaves.

Generally, the yield per mu is 100-150 kg, especially suitable for planting tobacco areas or high-yield new varieties, which can reach more than 200 kg. The yield per mu of tobacco leaves fluctuates greatly, which is affected by the processes of water and fertilizer, weather, roasting, and grading.

The yield per mu of tobacco is mainly determined by the variety of tobacco leaves, planting density, the number of leaves left, the amount of fertilizer and soil fertility, meteorology, and the period of rainfall also indirectly affects the yield per mu of tobacco leaves, the most suitable is the prosperous period, more rain, less rain in the mature period, photosynthesis will also affect the yield of tobacco leaves, the yield per mu in our northeast region is also inconsistent, the average yield per mu in the Kaiyuan in northern Liaoning is 200-250 kg, and the best yield per mu is about 300 kg in western Liaoning, but the national bureau and tobacco factories do not like high-yield varieties The yield per mu of tobacco leaves in general areas is About 150-200 kilograms of yield per mu of less than 150 kilograms The local tobacco is not easy to develop Because due to the current materials and artificial rent, the land rent is continuous** The tobacco production area with low yield per mu Tobacco farmers have no considerable benefits The cost per mu of tobacco we grow here is close to more than 3,000 yuan You think about it, what should be the yield per mu We are here The four-price area of the tobacco transfer price This year's average tobacco price is about 9 yuan Jin Hehe I don't think there will be a better answer than me in the professional I learned tobacco planting I have worked in the tobacco production line for more than 20 years.

Tobacco and peppers are both Solanaceae crops, and it is easy to spread diseases when planted in succession, but this also depends on the actual situation, if you grow tobacco in the first year with almost no disease or very mild disease, you don't have to worry too much about planting peppers. At present, I know that the problem of common mosaic virus disease is more likely to occur. If you talk about improvement, I think the main thing is to prevent diseases, there is no good way to improve, you can only change to other crops, such as grass crops, and the problem of planting diseases can be basically solved after 2 years.

What if I planted tobacco in the first year and still want to grow chili peppers?

A, pH =, less than 7, acidic B, pH =, less than 7, acidic C, pH =, less than 7, acidic D, pH =, greater than 7, alkaline According to when the pH of the solution is less than 7, it is acidic, and the smaller the pH, the stronger the acidity, the pH = of the soil is the smallest, the most acidic, and the cadmium and lead content in tobacco leaves is the lowest Therefore, A

Buckwheat, turnips, rape, these are suitable for winter planting, and the next year will not affect the rest of the harvest.

Growing vegetables in this way has four benefits: idle land is used efficiently; It can clean up the tobacco stems left over from the planting of flue-cured tobacco in the first half of the year and purify the soil; It is possible to increase the income of the crowd through alternating planting; The last benefit is because the shelf life of vegetables is short, and the maturity period of vegetables grown here is stepped, and a batch can be sold in 10 days, avoiding unsalable phenomena, and at the same time can ensure the long-term quality of vegetables.

Zhongwan Tobacco can smoke some wheat in the future, because wheat can be planted in winter, and tobacco cannot be heavy.

After the tobacco is harvested, you can grow a variety of winter vegetables, such as radish and cabbage, which can be harvested at any time before the tobacco planting season.

If you want to grow tobacco, you can basically only harvest one crop a year, and plant a little more the rest of the time, and it's too late for the rest. It's really not good, after the tobacco is harvested, you try to plant a bowl of corn and see if you can keep up?

You can grow some vegetables with a relatively short growth period, such as coriander, and spinach. Even if the weather is a little cooler, this kind of vegetable will not affect its growth.

It's up to you, how did you sign this contract? Because if it's forced on you, you also have to get public advice along the way, if it's not forced, you can also plant a point, and there's no problem with anything else.

First of all, you need to know what kind of soil is like on your land, and then you can decide what to plant based on that soil quality.

Let's plant some side dishes, the growing period will not prevent you from planting tobacco next year.

You can't grow tobacco the next year! Because there is no earth! You can grow grass!

I want to wait for the tobacco after-sales go to make some other crops, I don't know if this is definitely possible, and now it's like this.

Tobacco is very wasteful, and it is actually good to restore it if it is properly desolate.

Tobacco is commonly known as yellow leaves, and other crops are not suitable for cultivation after a single tobacco is planted. Therefore, the state has regulations on tobacco cultivation.

The land is rented to grow tobacco, and you want to wait for the tobacco harvest to grow some other crops, and you don't know what to grow, because you have to grow tobacco the next year? Depending on your availability, you can plant some varieties that are ripening quickly.

You can plant cabbage or something, and it will be ripe in winter, and you can ** a sum of vegetables, and you can plant tobacco in the next year.

It's good to plant some Shanghai green cabbage, and the cycle can be rapid**.

The land should be quite fertile after growing tobacco, especially with sesame oil residue. Other things can be planted, and no one cares what plants are planted now.

You can go to the local area and ask people who are familiar with farming.

If you want to plant tobacco again next year, you won't plant anything. Cultivating land.

It depends on what you grow in the right climate and what is marketable.

Plant plants that feed the soil and make it rich.