How to prevent and control peanut recropping?

1. Reasonable fertilization In order to solve the problem of heavy stubble, you can choose to apply farm fertilizer and biological fertilizer, which is very comprehensive in nutrition, which can improve the soil structure and promote the reproduction of beneficial microorganisms, thereby reducing the phenomenon of heavy stubble. The beneficial microorganisms in the soil can decompose the harmful substances in the soil and inhibit the occurrence of diseases. Farmhouse fertilizer should be fully decomposed before use, and raw fertilizer should be avoided to avoid the invasion of germs.

Second, deep soil in the winter soil freeze, to deep soil ploughing, in a low temperature environment deep soil, can eliminate part of the soil bacteria and insect eggs, which can reduce the probability of disease. Especially for white silk disease, after the surface soil is turned deeply, the activity of the bacteria in the surface layer will be greatly reduced as long as it enters the soil more than 7cm, so as to reduce the harm.

3. Supplement trace elements peanuts during the growth period, the demand for calcium is higher, if there is a lack of calcium or other trace elements, it is necessary to properly supplement trace elements, in the flowering period of peanuts, you can use foliar fertilizer spraying, which can meet the needs of peanuts in the critical period, so as to improve the fruiting rate of peanuts.

Fourth, the application of anti-heavy stubble agent can choose to use anti-heavy stubble, it is a kind of microbial agent, after being applied to the soil, it can quickly inhibit the growth of pathogenic bacteria in the soil, help the growth of beneficial bacteria, and thus protect the growth of peanuts.

1. Drying the field. Needless to say, one of the reasons for the harm is that the eggs and pathogenic bacteria left in the soil of the crops on the stubble cause harm to the crops. Of course, it may not be too late for wheat stubble to dry the field, but if the crop planted in the previous is garlic or a crop like the Northeast, it can actually be done.

Second, subsoiling in the field.

Subsoiling is not only conducive to breaking the bottom layer of the plough and improving the soil utilization rate, but also can bury the eggs and pathogens in the soil like the ground, reduce the diseases after heavy stubble, and also reduce the possibility of crop deficiency in production.

3. Increase the application of organic fertilizer.

Another major reason for the harm of heavy stubble is that the same crop absorbs a large amount of individual elements, and in the case of farmland has not been fully trimmed, the possibility of natural nutrient deficiency of heavy stubble has been greatly increased, so for the peanut planting of heavy stubble, it is a very good choice to use organic fertilizer for base fertilizer.

Fourth, choose disease-resistant varieties.

In addition to choosing appropriate tillage and management measures, choosing disease-resistant varieties is actually a good choice, which can fundamentally reduce the possibility of heavy cropping.

Finally, what we want to say about scientific agriculture is that in the past two years, in the case of China's vigorous subsidy of soybeans and corn prices have steadily increased, in fact, our planting options are getting bigger and bigger, so there is no need to take many risks brought by heavy stubble to plant peanuts, and crop rotation planting is also more able to make reasonable use of soil fertility.

The cause of heavy stubble disease is the perennial planting of the same crop harmful bacteria accumulation too much, toxin accumulation, the use of chemical fertilizers, pesticides caused by fertilizer damage, drug damage and other symptoms, peanut stubble can be used to prevent and control Haowanjia, it contains a variety of compound beneficial bacteria can be activated, loose, improve the soil aggregate structure, release the soil in the large, medium and trace beneficial elements, a variety of soil-borne diseases of crops caused by heavy stubble dead seedlings, rotten roots and dead trees and other phenomena have a good effect on improvement

Resist heavy stubble with microbial agents.

1. Land preparation. The land preparation must be fine, it must be prepared in autumn, turned deep to 30 cm, and raked many times to ensure that the soil is loose and solid, with good permeability, and ridges and compaction in autumn. Through the low temperature effect in winter, the fungi that cause peanut stem rot and root rot in the soil are killed, and the occurrence of pests and diseases is reduced.

2. Fertilization. When peanuts are cultivated, organic fertilizer must be added, and 4000 5000 kg of high-quality farm fertilizer must be applied per mu in combination with autumn ploughing. At the time of sowing, phosphorus and potassium fertilizers were mainly used, and 15 kg of diammonium phosphate and 8 kg of potassium sulfate were applied per mu.

In the first half of August, the foliar fertilizer was sprayed twice with 2% Ribery Yanwo powder potassium dihydrogen phosphate, and at the same time, microbial agents containing nitrogen-fixing bacteria, phosphorus-solubilizing bacteria and potassium-solubilizing bacteria were used to prevent and control diseases.

3. Variety off. Strengthen quarantine, and strictly prohibit the introduction of seeds from the sick area. Choose disease-resistant and high-yielding varieties and replace them in time.

Before peeling peanuts, choose sunny weather for 2-3 days. Combined with shelling, the first-class species with large and full grains, bright skin color, high fruit satiety rate, good uniformity, clear reticulation, moderate size, beautiful appearance, germination potential and high germination rate were selected.

4. Management pass. After the emergence of seedlings, if there is a lack of seedlings and broken strips, to promote germination and replanting, after the seedlings are cleared and squatting, the floating soil of the rhizosphere of the seedlings is picked out by hand, so that the two ** leaves are exposed. About 15 days after the barley is returned, the soil is filled.

Carry out three tillage and weeding at the seedling stage, the cluster stage and the flowering stage, the first tillage should be shallow, to prevent the stem from burying too much soil, affecting the development of side branches, as long as the topsoil is loosened and the weeds are removed; The second tillage is in the nodule formation stage, and this tillage can be slightly deeper, generally about 6 cm; The third tillage is in the flowering period, this tillage should be extra careful to avoid damage to the fruit needles, and the depth of tillage is about 5 cm. That is, to grasp the principle of "shallow, deep, shallow", 15 days after flowering, the soil should be 3 cm, not too thick. Strengthen the control of pests and diseases.

The land preparation must be fine, it must be prepared in autumn, turned deep to 30 cm, and raked many times to ensure that the soil is loose and solid, with good permeability, and ridges and compaction in autumn. Through the low temperature effect in winter, the fungi that cause peanut stem rot and root rot in the soil are killed, and the occurrence of pests and diseases is reduced.

If autumn ploughing is not carried out in time, it is necessary to deepen the soil in the spring, deepen the active soil layer of the soil, improve the soil structure, enhance the soil drought and waterlogging resistance, fertilizer retention and permeability. The general requirement is about 30 cm.

There are the following prevention and control methods for peanut stubble.

Frequent soil turning, timely application of micro-fertilizer, soil improvement, and application of anti-stubble agents can reduce the problem of peanut stubble.

Seed. <>

When planting peanuts, it is necessary to choose high-quality seeds, because the planting area is limited, so there is no need for many seeds, usually three or four are enough. Here the selected seeds are put in water and soaked overnight, and the seeds can be cultivated the next day.

Sow. We prepare a flower pot, fill the pot with moist and breathable soil, bury the seeds in the soil to a depth of about two or three centimeters, after the seeds are covered, spray some water appropriately, and then you can cover the surface of the pot with a film, which mainly plays a certain role in moisturizing.

Manage. After making the above preparations, move the pot to a sunny place, but do not expose it to the sun, as the result of exposure to the sun can easily lead to the death of the roots due to lack of water and incomplete development. Then wait for a week or so for the peanuts to sprout.

Finally, the film is cut to help the seedlings grow, and then they are properly watered every day, and slowly the peanuts will bloom with brightly colored yellow flowers.

Fertilize. Peanuts should be fertilized during the growth period to reduce the occurrence of diseases.

Summary. Hello, I'm glad to answer for you, thank you for your patience: choose disease-resistant varieties, reasonable crop rotation, and strengthen field management.

Changing the stubble is the best way, and then the peanut group is full of pyrethrin endosulfan root irrigation effect is good, but it is a pity that endosulfan is banned from being sold on the market. Try to avoid heavy stubble, pesticide dressing, and early pesticide prevention at the seedling stage. Due to soil-borne diseases, they are controlled with fungicides.

Spray trace elements once a week. Spray 920 or brassin.

Hello, I'm glad to answer for you, thank you for your patience: choose disease-resistant varieties, reasonable crop rotation, and strengthen field management. Changing the stubble is the best way, and then the peanut group period with pyrethrin endosulfan root irrigation effect is good, but it is a pity that endosulfan city is cautious to destroy the ban on the sale of imitations.

Try to avoid heavy stubble, pesticide dressing, and early pesticide prevention at the seedling stage. Due to soil-borne diseases, it is controlled with bactericidal drugs. Spray trace elements once a week.

Spray 920 or brassin.

Hello, I'm glad to answer for you, thank you for your patience: control with fungicides. Spray trace elements once a week. Spray 920 or brassin.

Soil-borne diseases refer to the pathogenic bacteria that remain in the soil with a large number of crop diseases, under the conditions of suitable temperature, humidity, light, etc., these pathogens in the soil will begin to grow, harming the roots and stems of crops, infecting the vascular bundles of crops, and the pathogenic bacteria are multiplying in the "heavy crop" phenomenon when planting crops, and there is no effective "rotation" planting, which is completely due to man-made, which makes the diseases targeted by a certain type of crops "take root" in the soil.

<> single planting pattern and few crop rotation crops. Due to the perennial planting of one or a class of crops, the corresponding pathogens are multiplied in the soil every year, and a large number of pathogens and viruses accumulate in the soil, and to a certain extent, they will break out. Soil-borne diseases are mainly spread by bacteria, and we mainly smoke the ground here.

After spreading the medicine in the ground, cover it with a film and press it well. When the time comes, the film will be removed from the cultivated land and planted.

From the perspective of planting, some pathogens live in the soil for a long time, various pathogens in different seasons or at different times (overwintering or summering in the soil), and after the soil temperature rises to a certain condition, they begin to harm the taproot and hair root of crops. Soil diseases mainly include root rot, total erosion, sheath blight, wilt and so on.

The cause of physiological diseases of broccoli is related to nutrition, temperature, humidity, soil and other factors, so in planting, temperature management should be appropriate, and timely watering and top dressing, if the humidity is too large, it should be timely to reduce humidity, drain moisture, and rational use of medicine, can effectively prevent and control physiological diseases. 1. Avoid continuous cropping of crops of the same family and carry out crop rotation planting 2. Before planting, you can choose chlorothalonil, quicklime, etc. for soil sterilization 3. Avoid partial application of chemical fertilizers, apply more organic fertilizer to nourish the land, and enrich the soil microbiota.

I think that the replanting of peanuts will have a direct impact on the yield of peanuts. In this case, leaf wilt or leaf rust will occur, and underground pests will be more serious, coupled with a large number of parasitic bacteria after peanut rot left over in the first year, which is greatly detrimental to the growth and fruit of peanuts. Therefore, it is recommended that peanuts should not be planted in heavy crops.

If there is really no way: 1. When sowing, you can use thiamethoxam, imidacloprid, benzoxystrobin and other ingredients of seed dressing to prevent grubs, aphids, ground tigers, white silk disease, etc., peanut can be sprayed with thifuramide before sealing the ridge to prevent white silk disease, and benzoxystrobin can be sprayed to prevent leaf spot in the later stage. 2.

For the prevention of bacterial wilt and stem rot, it is also necessary to pay attention to the cultivation of beneficial microorganisms, many farmers use live soil Jun compound microbial agent to improve the number of beneficial microorganisms in the soil, which is feasible, the fungus agent can not only improve the soil, but also improve the ability to retain water and fertilizer, but the use of fungicide must not be mixed with fungicide, the wrong use effect is nothing.

With 80% allicin 4000g hectares, that is, 260g mu for soil treatment, to eliminate soil residual overwintering colonies, or to use soil bacteria to eliminate 50% uric acid, using 500-1000g per mu can effectively kill bacteria, fungi and viruses in the soil. Pay attention to fertilizer hygiene, and strictly prevent germated fertilizer from entering the greenhouse.

You can use quicklime to treat these diseases, and you must choose organic fertilizer when it is fertilizer, so that the flowers can grow full.

Summary. Hello, there are many varieties of peanuts that are resistant to heavy stubble, the most commonly used of which are ordinary peanuts, red peanuts, white peanuts, purple peanuts, red and white peanuts, etc. Common peanut has strong resistance to heavy stubble, good cold resistance, short growth period, strong disease resistance, good drought resistance, strong resistance to diseases and pests, high yield, and strong resistance to heavy stubble, and is the most commonly used peanut variety.

Red peanut also has a strong resistance to heavy stubble, good cold resistance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and is a leader in resistance to heavy stubble peanuts. White peanut also has a strong resistance to heavy stubble, good cold resistance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and is a leader in resistance to heavy stubble peanuts. Purple peanut also has strong resistance to heavy stubble, good cold resistance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and is the leader in resistance to heavy stubble peanuts.

Red and white peanuts also have strong resistance to heavy stubble, good cold tolerance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and are the best in resistance to heavy stubble peanuts. In short, there are many peanut varieties that are resistant to heavy stubble, such as common peanut, red peanut, white peanut, purple peanut, red and white peanut, etc.

Ask what peanut is the most disease-resistant immortal seedling in Henan Province?

Planted in Zhumadian City.

Hello, there are many varieties of peanuts that are resistant to heavy stubble, the most commonly used of which are ordinary peanuts, red peanuts, white peanuts, purple peanuts, red and white peanuts, etc. Common peanut has strong resistance to heavy stubble, good cold resistance, short growth period, strong disease resistance, good drought resistance, strong resistance to diseases and pests, high yield, and strong resistance to heavy stubble, and is the most commonly used peanut variety. Red peanut also has strong resistance to heavy stubble, good cold resistance, strong resistance to diseases and insect pests, high yield, strong resistance to heavy stubble, and is the leader in resistance to heavy stubble peanuts.

White peanut also has a strong resistance to heavy stubble, good cold resistance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and is a leader in resistance to heavy stubble peanuts. Purple peanut also has strong resistance to heavy stubble, good cold resistance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and is the leader in resistance to heavy stubble peanuts. Red and white peanuts also have strong resistance to heavy stubble, good cold tolerance, strong resistance to diseases and pests, high yield, strong resistance to heavy stubble, and are the best in resistance to heavy stubble peanuts.

In short, there are many peanut varieties that are resistant to heavy stubble, such as common peanuts, red peanuts, white peanuts, purple peanuts, red and white flowers, Fuming Qisheng, etc., which are all peanut varieties with strong resistance to heavy stubble.