What is the reason for the low yield of sweet potatoes? How can farmers make sweet potatoes grow wel

From late April to early May, the sweet potato planting season arrives. Growing sweet potatoes now requires not only high yield, but also high quality and taste. Many farmers say that sweet potatoes often encounter many problems in the planting process, such as the use of fertilizer, how to control the economy, how to control pests and diseases, etc.

If these are not done well, the yield and quality of sweet potatoes will decrease.

1. The use of fertilizers.

Sweet potato is a potassium-loving crop, and reasonable fertilization is conducive to improving yield and quality. The first is the use of organic fertilizers, which can improve soil conditions and replenish nutrients. Then, nitrogen, phosphorus, and potassium are preferred. It is best to use medium nitrogen, low phosphorus, and high phosphorus.

Potassium compound fertilizer, or special fertilizer for sweet potato planting. Finally, trace elements.

The use of sweet potatoes can also be raised.

2.Control the boom.

In the middle and late stages of sweet potato growth, the expansion of the potato tuber will be affected by water and fertilizer. If there is enough rain and more nitrogen fertilizer, sweet potato seedlings will grow vigorously. When nutrients are overgrown, the potato chunks become smaller. Therefore, reasonable control of vigorous growth is also part of the high-yield planting of sweet potatoes.

In the past, when sweet potatoes were controlled, methods such as pinching, turning or hanging vines were used, which required a lot of labor. In addition, in recent years, many farmers believe that turning or hanging vines will disturb the original growth space and affect photosynthesis.

Not conducive to the growth of sweet potatoes. Therefore, it is recommended to spray a growth control agent, such as paclobutrazol, when the vine has a tendency to flourish.

Uniconazole, etc. , which coordinates vegetative and reproductive growth and promotes the expansion of potato chunks. Of course, this is for the bustling plot. Some plots with poor soil and less fertilizer and water grow poorly and do not need to control prosperity.

3.Pest control.

During the cultivation of sweet potatoes, the quality of sweet potatoes can be seriously affected by underground pests. For example, grubs.

After injury, sweet potatoes will leave insect eyes, and the appearance quality of sweet potatoes will also decrease. There are many ways to control underground pests, and there is a certain gap in the control effect. First, sweet potato seedlings are dipped in roots before transplanting. There are many drugs to choose from, such as imidacloprid.

Chlorpyrifos microencapsulated suspension, chlorantraniliprole.

Wait. Choose one of the drugs, add water and soil, stir into a paste, soak the seedlings for a few minutes, and transplant.

The second month is the high incidence of underground pests, and chlorpyrifos or phosphine are used in the field.

When rinsing, do not blindly increase the dosage of the drug, which is easy to leave drug residues and reduce the quality. If rinsing chemicals becomes less effective, it is advisable to change to other methods to control the pest. The above three points are the problems that farmers should pay attention to when planting sweet potatoes.

Only scientific fertilization, reasonable control of growth, and early prevention and control of pests and diseases can improve the yield and quality of sweet potatoes.

I think there may be pests and diseases, and the soil is not too fertile, so I think you should change some fertilizer often, and you should also spray some pests to prevent pests and diseases, I think that's fine.

The main reason is that the fertility of the soil is not enough, and secondly, there is no timely watering, so there will be a reason for low yield, the most important thing is that the drainage work is not done in the later stage, and if you want to make sweet potatoes grow well, the first thing is that you should apply a lot of fertilizer.

The low yield of sweet potatoes may be due to the fact that they have not been cultivated well. It is necessary to put more potassium-containing fertilizer in the soil of sweet potatoes, pinch the tips of sweet potatoes in time, turn over vines, and also give it more insect removal, fertilization, and watering. In this way, the sweet potatoes can grow better.

The low yield is most likely due to a lack of nutrients. In normal times, you should water more fertilizer on the sweet potato, give it more nutrients, and give it more water, so that the sweet potatoes grown will grow very well.

The low yield of sweet potatoes may be caused by insufficient fertilization, and it is necessary to pay attention to the amount of compound fertilizer, the growth period of sweet potatoes, to control the vigorous growth, and also to prevent the invasion of pests.

If you want to increase the yield of growing sweet potatoes, you must do this in order to increase the yield.

Cut off the 2-3 stems at the top of the sweet potato seedlings by planting upside down, and then cut off the petioles and leaves of the two stems above each section according to a section, keep the petioles and leaves of the two stems below, and plant them upside down on the ridge compartment to leave a petiole base to expose the ridge surface, and the seedling spacing is generally about 15 cm. Although the growth of upside-down sweet potatoes is slower than that of straight planting, due to the reversal of the direction of water absorption and organic matter absorbed by the roots transported by the conductive tissues in the stems, the conveying speed is slowed down, and a large amount of organic nutrients are accumulated in the roots, which is conducive to the expansion of potato pieces and can increase the yield by more than half.

When the sweet potato stem grows to 40-50 cm, pick the top bud in the morning in fine weather; When the branches are 30-35 cm long, continue to remove the terminal bud. This method can inhibit the growth of stems and vines, avoid nutrient consumption, promote root expansion, and increase yield by 20-30%.

Crack fertilized sweet potatoes enter the root expansion stage, and cracks will appear in the topsoil layer. At this time, 750-1000 kg of manure per mu is used, 500 grams of potassium dihydrogen phosphate (5 kg of superphosphate and 50 kg of plant ash can also be used, which are soaked and filtered with water), mixed in manure, irrigated along the cracks in the morning or evening, and filled with soil after irrigation, which can increase the yield by 20-30%.

When the sweet potato seedlings grow to 50-60 cm long, 10 ml or 20-25 ml of protein per mu can control the upper part and promote the lower part and promote the rapid growth of root tubeers, which can increase the yield by 15-20%.

<> "To solve the problem of low yield of growing sweet potatoes, we must carefully select sweet potato seeds before we plant sweet potatoes. In fact, choosing sweet potato seeds is the key to grasping the fate of sweet potatoes, because when sweet potato seeds are seeds with a particularly high yield, sweet potatoes naturally produce a lot of fruit. Therefore, when choosing sweet potato seeds, we need to do some research.

At the moment, we need to do some market research to see that sweet potato seeds are particularly productive and selling particularly well.

When growing sweet potatoes, it is important to study the germination rate of sweet potatoes, as many sweet potatoes have particularly low germination rates. Although we can buy their seeds or let them sprout and grow these self-sprouted sweet potatoes, these sprouted sweet potatoes are often ineffective, and after planting, they can say that the nutrition is not in place, so when we plant sweet potatoes, we must pay attention to whether their hair is normal, or if they are too weak. If they are particularly weak, these sweet potatoes need more careful protection.

When planting sweet potatoes, we should also pay attention to the time, especially at the beginning, when planting, because if the sweet potatoes are planted very early, and the ripening time is also early, which can also make the sweet potatoes resist frost damage to a certain extent, we must plant them very early. Germination and seedling raising is an important part of the whole off-season cultivation, and the seedling time should be moved into the seedbed of the protected area in mid-February.

When growing sweet potatoes, also pay attention to wrapping a layer of plastic film on the sweet potatoes, because the paper of this plastic film is actually insulated, but it can also play a certain role in increasing the yield of sweet potatoes, which is just a very important thing, but we can use more of these things when we are out and about, or in winter, you only need to use them twice. You don't need to use too many places. Health: We use high-yielding varieties that are suitable for the local climate.

On this point, you can consult some of the surrounding growers to see which varieties they are choosing.

When planting sweet potatoes, you should first choose some sweet potato varieties with high adaptability, and soak them in advance when sowing, and then sow them in April, and then plant them in some relatively warm links after sowing, water them appropriately, and choose phosphate fertilizer to fertilize 2 3 times a week.

Ever heard of a sweet potato with a handful of ash? In the future, before planting sweet potatoes, sprinkle enough farm manure into the land to improve the soil, and when planting, sprinkle some grass and wood plaster, so that the yield of sweet potatoes can be increased.

First of all, we must choose the best varieties, and secondly, we must do a good job in field management and pay attention to the prevention and control of pests and diseases.

In advance, we should choose some suitable varieties when planting, and in the process of planting, we should plant in some relatively warm environments, to ensure that there must be sufficient sunlight when planting, and at the same time we must pay attention not to accumulate water, choose phosphate fertilizer watering, so that the environment can improve the yield.

Sweet potatoes are one of the most common foods in our lives, loved by people, and can be widely cultivated in most parts of our country, but if you want to have a high yield of sweet potatoes, you must master all aspects of knowledge, not all conditions can grow delicious sweet potatoes, nor can you have high yields under any conditions. If you want to achieve high yields, you have to work the selection of varieties that are suitable for local cultivation and have strong disease resistance. For example, some sweet potato varieties need to be controlled, while others do not need to be turned over the vine, so choosing the right variety is a necessary condition for obtaining high yields.

The growth environment of sweet potato is sandy loam soil and sandy soil with deep soil layer, loose soil, good aeration and good drainage performance. If clay is used, the skin and inner flesh of sweet potatoes are not good, not sweet, the roots are hard, the potato shape is not neat, the yield is low, and it is afraid of cold and freezing, and it cannot be stored. In other words, Wang control is far more important than other aspects.

Even at present, some areas have stopped turning seedlings, but changed to direct control of prosperity, and the use of growth regulators to control prosperity, the effect is better.

At present, there are many varieties of sweet potatoes that are popularized and applied, and the requirements of different varieties for soil are not the same, at the same time, with the research and promotion of cultivation technology, as long as the right varieties are selected and the corresponding cultivation management methods are adopted, different soil types can obtain high yield and high quality. The role of this film is to effectively provide the right temperature for the sweet potato seeds, and since the season at this time is around March, it can be said that most of the area is in a relatively cold state, so if you want to increase the yield of sweet potatoes effectively and quickly, then this process is indispensable.

Sweet potatoes grow well and have high yields on relatively fresh and loose land, generally on the dam ridge and higher ground, and are not adapted to the ground being too wet, so it is easy to make the rattan grow and consume nutrients. However, it should not be too dry, if it is too dry, the nutrients cannot be exerted and absorbed, so it should be properly watered. Usually the more loose soil is more productive.

When planting, it is best to rain for several days in a row to soak the ground, after planting, if the rain is enough, the yield is generally high, otherwise too dry will reduce the yield! Moreover, it saves the labor cost of sweet potato seedling turning.

The low yield of sweet potatoes is caused by insufficient fertile soil and excessive rainfall. Generally, farmers like to apply some phosphorus and potassium fertilizers when planting sweet potatoes, so that the roots of sweet potatoes absorb nutrients and grow very large, which naturally has a high yield.

The low yield is due to the type of sweet potato, as well as the soil, sunlight, and some other factors, and the farmer's fertilizer that is more suitable for growing sweet potatoes is urine manure and pig manure.

Most of this problem is caused by the wrong fertilization method. In sweet potato planting, in addition to the soil environment to be suitable, the sweet potato variety should be selected correctly, the fertilization method is very important, the fertilization method is used correctly, and the sweet potato high yield is easy. The farmhouse fertilizer that is more suitable for planting sweet potatoes is urine manure, pig manure, weed crushed soil burning soil fertilizer, grass and wood ash, peanut bran, and soybean cake fertilizer.

Human urine feces and pig manure have high acidity, which can improve the acidity of the soil and is very conducive to the growth of sweet potatoes; The weeds and crushed soil burn soil fertilizer and plant ash contain a large amount of potassium, and sweet potatoes are potassium-loving crops.

1. Make a good potato ridge. Potato ridges are an important factor affecting sweet potato yield. Therefore, it is necessary to lay a good potato ridge.

It is necessary to avoid ridges after rain, because after rain, the soil is compacted, which is not conducive to the expansion of potato pieces, so it is necessary to dry the potato ridges on sunny days, and strive to be clear, transparent and short. Zhaoshen Rock Xuan and Penetration can increase soil voids, increase permeability and blind pure water retention capacity; Short ridges are conducive to drainage, prevent soil moisture saturation, resist drought and waterlogging, and maintain the air permeability of potato ridges.

2. Apply plantar fertilizer. The growth period of sweet potato is short, and the application of base fertilizer, especially the application of seedling fertilizer, can promote the rapid growth of stems and vines. Stem fertilizer is generally applied 2500 3000 kg of soil miscellaneous fertilizer per mu, it is best to apply more fast-acting potassium fertilizer such as plant ash, and apply 10 15 kg of diammonium phosphate per mu when making ridges.

In order to promote the early emergence of potato seedlings, some nitrogen fertilizer can be applied to the hole when planting seedlings, and the general dosage per mu is 3 4 kg. It is necessary to pay attention to the isolation of seedlings and fertilizers, and finally water and seal the holes.

3. Choose to plant vines. Sweet potato vine head, developed nutrition, strong stress resistance, early rooting, early potato setting, high yield. According to the test, the yield of sweet potato planted in corn field was higher than that of vine planting.

When planting vines, it is necessary to keep the top leaves from drying up, and three points should be achieved: first, with the cutting of the vines, with planting, with watering, to prevent the vines from losing water and wilting; The second is to leave leaves on the ground moderately, if 7 leaves, sunny days, planted in the morning, you can leave 3 leaves to bury 4 leaves, cloudy days, when planted in the afternoon, you can leave 4 leaves to bury 3 leaves, it is best to plant in the afternoon or evening; The third is to water after planting and seal the hole.

4. Reasonable dense planting. The yield of sweet potato per plant in maize field is low, so it is generally planted with small ridges to give full play to the role of the group to increase the yield and obtain high yield. You can choose the varieties of short vines and concentrated potatoes, pay attention to reasonable dense planting, use small ridge planting, generally ridge spacing 60 70 cm, plant spacing 15 20 cm, planting 5000 6000 plants per mu, seed potatoes can also be denser, up to 7000 plants.

When planting, the short seedlings are deeply planted obliquely, watered with enough water, and the holes are sealed tightly, so that they can return the seedlings early, sprout early, produce potatoes early, and produce more potatoes to create high yields.

5. Rational use of plant growth regulators, when the sweet potato seedlings grow to 50 60 cm long, 10 ml of amine per mu can control the upper part and promote the lower part, promote the rapid growth of root tubers, and increase the yield by 15% 20%.