If you want to grow high yield and high quality sweet potatoes, what fertilization skills should you

In the process of sweet potato planting, many farmers have some misunderstandings when fertilizing, resulting in a decrease in yield and quality. Sweet potatoes are mainly based on base fertilizer, accounting for 80% of the total amount of fertilizer, in order to grow high-yield and high-quality sweet potatoes, in the use of base fertilizer to master the fertilization skills.

First, pay attention to the use of organic fertilizers.

In the past, when planting sweet potatoes, many farmers sprinkled farm manure and plant ash, and no longer applied chemical fertilizers, so that sweet potatoes could be produced. Sweet potatoes are suitable for planting in the soil with good air permeability, which can promote the expansion of potato tubers, and the effect of farm manure and plant ash can loosen the soil and increase the amount of potatoes. Nowadays, many farmers no longer use organic fertilizers when planting.

Organic matter can improve soil conditions, improve soil air permeability, and be more conducive to the growth and commercialization of potato tubers. Organic fertilizer can use its own fermented manure, generally about 2,000 catties per mu. There are many types of manure, which must be used after decay, and in terms of yield and appearance quality, it is better to use cow manure than chicken manure.

Second, the balance of nutrients is applied.

Many people say, why do I use a lot of fertilizer for the sweet potatoes I grow, but they only grow seedlings and do not produce potatoes? This is largely caused by excessive nitrogen fertilizer, the upper stems and leaves of sweet potatoes grow vigorously, affecting the absorption of calcium, boron and other trace elements, the tubers do not grow much, and there are many cracked potatoes, which affects the commerciality of sweet potatoes.

Sweet potatoes need more nutrients, 500 kg of fresh potatoes need to absorb 2 kg of nitrogen, 1 kg of phosphorus and kg of potassium. According to the law of fertilizer demand of sweet potatoes, potato tubers need the most potassium to grow, followed by nitrogen. Therefore, many farmers use nitrogen-based fertilization methods, which obviously cannot achieve high yields.

Nitrogen fertilizer can be used flexibly, and soil with high fertility can be used without or less nitrogen fertilizer. The amount of phosphorus should not be too much, so as to prevent the inexhaustible absorption of phosphorus from being deposited into the soil, resulting in soil compaction. Potassium fertilizer cannot be used potassium chloride type fertilizer, which has an impact on the quality of sweet potatoes.

When choosing compound fertilizers, many farmers use balanced compound fertilizers, with the same nitrogen, phosphorus and potassium content, so that there is too much nitrogen and phosphorus, and less potassium. It is best to choose a compound fertilizer with medium nitrogen, low phosphorus and high potassium, with 50 kg per mu to meet the growth needs of sweet potatoes. If there is a lack of calcium, boron, and other trace elements in the soil, they should also be applied in the base fertilizer to prevent the potato skin from turning black and affecting the commerciality.

When fertilizing sweet potatoes with high yield, we should pay attention to the above two aspects, and use the method of farmhouse fertilizer and compound fertilizer to increase the organic matter in the soil, which is conducive to the growth of potato pieces and improves the quality. Use a high-potassium compound fertilizer to prevent vines from growing and promote the expansion of potato pieces. Sweet potatoes are planted in loose and fertile plots, and it is believed that the yield and quality will be good.

You can apply some nitrogen fertilizer first, which can increase the growth of leaves and rhizomes, make the leaves and rhizomes faster, and then add an appropriate amount of phosphorus fertilizer, which can make sweet potatoes absorb nutrients more.

Pay attention to the use of organic fertilizers such as manure and plant ash fermented by farm fertilizer, which can loosen the soil and increase the amount of potatoes. Excessive nitrogen fertilizer makes the stems and leaves of sweet potatoes grow vigorously, which affects the absorption of calcium, boron and other trace elements. Various nutrients need to be applied in a balanced manner, with potassium being the most, followed by nitrogen; It is best to choose a compound fertilizer with medium nitrogen, low phosphorus and high potassium.

The base fertilizer is mainly nitrogen fertilizer, supplemented by potassium fertilizer, and the fertilizer is applied in two times in the initial stage, and the two fertilizers are mixed with each other, and more water is added as much as possible for sweet potato absorption.

There are many starch processing plants and vermicelli processing factories in the three powder bases, and the demand for sweet potatoes is very large, and basically there will be no situation where sweet potatoes cannot be sold. Sweet potatoes are drought tolerant, barren tolerant, high yield, simple management, and relatively high planting efficiency, so there are still many farmers who plant sweet potatoes. In the past difficult years, farmers spent most of the year eating sweet potatoes to satisfy their hunger, and even the snacks that children ate during the New Year were made of sweet potatoes.

In the process of planting sweet potatoes for a long time, farmers are also quite familiar with them.

And also summed up in addition to many experiences. The base fertilizer of sweet potato is mainly soil miscellaneous fertilizer and potassium fertilizer, grass ash. Before the sowing period, sufficient soil miscellaneous fertilizer is sprinkled in the sweet potato cultivation field, and then deep ploughing and turning the soil are carried out to allow the soil miscellaneous fertilizer to penetrate tightly with the soil.

When planting sweet potatoes, prepare the land for high furrows, and choose sweet potato cuttings for planting after rain or on cloudy days. For example, sweet potatoes are underground clumping crops, and it is inconvenient and easy to damage the rhizomes in the later stage, so it is mainly to apply sweet potatoes before ridge formation to form a large pile."

The "ash" here generally refers to the grass ash in the countryside, the ash at the bottom of the kang two, generally in the northwest countryside in the "ash at the bottom of the kang" is more, because in the winter the countryside will be filled with kang, so the whole winter will save a lot of "kang fertilizer". Only reasonable fertilization can increase yield and improve quality. So, what fertilizers do you need to use before sweet potato ridges?

How to fertilize the sweet potato rhizome for absorption and growth? Sweet potatoes are grown in the village, and in general, they are taken from the manure of cows, pigs, chickens, ducks, rabbits, geese, and other poultry. <>

After fermentation and rotting, it is used to grow sweet potatoes and peanuts and make a base. Or it is made by shoveling turf on wasteland and planting land, mixing and mixing soil and burning it, which is called "fire ash". Nowadays, with the continuous improvement of people's living standards, sweet potatoes not only did not withdraw from people's sight, but turned into a variety of delicacies, and even many places have been planted in large areas, high-quality and high-yield sweet potatoes are the pursuit of growers, as the saying goes, "crops are a flower, all rely on fertilizer".

According to the size and area of sweet potato seedlings, reasonable fertilization, pay attention to the amount of fertilizer, and pay attention to the selection of fertilizer components. To fertilize the roots, you must water them, and the amount must be controlled evenly, the absorption of sweet potatoes must be ensured, the soil must be loosened, and so on.

When the sweet potatoes are planted and are already growing well, they need to be fertilized. When fertilizing, you need to get rid of weeds, turn over the vines, remove the excess vines of the sweet potato, and keep one or two main vines.

In order to promote good roots, fast greening, early tillering, the formation of enough strong tillers, to achieve high yield of growth, to scientific water and fertilizer management as the center. In order to meet the physiological water demand requirements of rice, water should be used to regulate the growth and development of rice plants, and the water management at the tillering stage should achieve "inch water returning to green", "thin water tillering" and "timely tillering control".

The use of well-rotted organic fertilizer, an appropriate amount of plant ash and nitrogen and phosphorus compound fertilizer mixed with the soil after ploughing and ridge, organic fertilizer can improve the soil, fertilize the soil, and make the soil permeable at the same time. The main component of plant ash is potassium sulfate, which basically meets the demand for potassium fertilizer for sweet potatoes in the early stage. Potassium fertilizer can be applied at the seedling stage, leaf and stem growth stage and fruiting stage, and the application amount is larger, generally 3 or 4 times, or once a month.

Sweet potato likes light, in the case of sufficient light, the leaf color is thicker, the leaf age is longer, the stem vine is thick, the stem conduction tissue is developed, and the yield is higher. If the light is insufficient, the leaf color is yellow, the leaves are more decided, the leaf age is short, the stems and vines are slender, the conduction tissue is not developed, the organic nutrients formed by assimilation are less transported to the roots, and the yield is low. In order to have a high yield of sweet potato, it is not only by increasing the application of nitrogen, phosphorus and potassium fertilizer can be obtained, but also pay attention to the selection of varieties, the application of organic fertilizer, the method of planting, pest control, control and prevention of growth, etc., only these elements that are conducive to the healthy growth of sweet potato are organically combined, and there will be high yield and high quality of sweet potato.

In the process of fertilization, the fertilization stage should be focused, the base fertilizer or bottom fertilizer of the sweet potato field is particularly important, and the sweet potato as a whole has more demand for potassium fertilizer, less nitrogen fertilizer, and least phosphate fertilizer. Therefore, we should pay attention to the proportion of various nutrients when putting bottom fertilizer, and grasp the principle of coarse fertilizer and deep release. My village is still planting sweet potatoes for feed, and the yield is also very high, generally about 6,000 catties per mu.

In the process of plant growth, it is necessary to meet the requirements of various fertilizer nutrients in different growth periods, and the appropriate amount of nitrogen fertilizer can promote the growth of leaves and stems and leaves, but not too much, the test potassium fertilizer has the greatest impact on the yield of sweet potato, followed by nitrogen fertilizer and phosphate fertilizer, to understand the growth characteristics of sweet potato, scientific fertilization, and reasonable fertilization. Potassium fertilizer can promote fruit expansion, promote crop metabolism, and improve the ability of crops to root, frost and stress. Therefore, it is recommended that sweet potatoes can be sprayed with a concentration of potassium dihydrogen phosphate fertilizer.

You can not rely on fertilizer, sprinkle some plant ash on the roots of sweet potatoes to increase water and temperature, you can also plant, the technique of high yield is to fertilize a lot after flowering, and also fertilize after rain, so that the nutrients can be more sufficient, and then you can have a high yield.

No, it can also be improved by sweet potato varieties, and if you have the ability, you can also make genetic changes, or combine them with other varieties.

No, you can also rely on natural fertilizers, you must pay attention to weeds at ordinary times, and then water the land more, you can plant denser in the process of planting, and the land must be moist and fertile. Have enough light time.

You can't just rely on fertilizers. When planting, pesticides should also be sprayed in time, and the soil should be loosened in time, water and fertilizer management should be done, and transplanting should not be done easily.

No, this is the time to ensure that the sun shines in the place, and then it is necessary to ensure the fertility and humidity of the soil.

When <> grow sweet potatoes, how should they be fertilized? What problems should be paid attention to when fertilizing? The fertilization of sweet potatoes should pay attention to different periods, different amounts and different types of fertilizers.

Because sometimes, sweet potatoes belong to the time when they have long leaves, and at this time, it may not need as much fertilizer. However, at the tuber setting stage, it needs enough fertilizer and water to ensure a high yield. Therefore, how to fertilize is actually very particular.

In the early stage of seedlings, it is necessary to pay attention to enough fertilizer so that the leaves of sweet potatoes can grow well. So that the seedlings can be very vigorous. But in the middle stage, it is necessary to control the length of the seedlings, so that they do not patronize the leaves all the time and do not bear sweet potatoes.

At this time, because the growth of sweet potatoes is vigorous, it is also necessary to pay attention to fertilization.

In the later stages, the leaves of the sweet potatoes will turn from green to yellow. At this time, it is necessary to be careful not to let sweet potatoes enter the situation of premature aging. If it is premature, it will affect the setting of potatoes, and the size of sweet potatoes will be affected.

However, one point that must be explained here is that one month before the sweet potatoes are to be received, do not irrigate again, otherwise, it will be a big trouble for the future storage of sweet potatoes. For the choice of fertilizer, we must also be careful. Nowadays, in many rural areas, only chemical fertilizers are used for planting.

This is not enough. Over time, the soil will harden and lose its fertility. For sweet potatoes, a plant that needs loose soil, it is definitely a big disservice.

Choosing a mix of chemical fertilizers and organic fertilizers will be of great help to the growth of sweet potatoes. Organic fertilizer is human and animal manure, plant ash, these fertilizers. These fertilizers are fertilized in different proportions.

When fertilizing, it is also necessary to look at the growth of seedlings. Seedlings in different periods and fertilization methods are also different. When the seedlings are planted three to five days later, a small hole of 10 cm can be inserted in the root of the seedlings, and urea can be poured into the soil.

This practice helps to ensure that the seedlings grow strongly. When the seedlings grow and produce potatoes, you can increase the fertilizer. At this time, fertilization can be applied along the cracks where the roots swell.

The selected fertilizer, after fertilization, should be watered once. Promotes the action of fertilizers. When it's time for the tubers to form, you can increase the intensity and frequency of fertilization.

Because fertilization is applied at this time, the absorption capacity of sweet potatoes is limited. So, fertilization can be applied outside the roots. However, it is important to note here.

If it is when applying organic fertilizer. The manure should be fully fermented before it can be used.

1. Applying sufficient basal fertilizer is a fundamental measure to meet the long growth period and large fertilizer demand of sweet potato.

1. When turning the soil, apply about 5,000 kg of rotten farmhouse fertilizer per mu, and at the same time apply about 30 kg of phosphate fertilizer and about 100 kg of plant ash. Rotted farmhouse manure such as chicken manure, cow manure, sheep manure and other soil miscellaneous fertilizers.

2. The basal fertilizer can be combined with deep and layered, coarse fertilizer with fine fertilizer and shallow, and late-acting fertilizer and fast-acting fertilizer combined. Since the root system of sweet potatoes is mostly concentrated in the soil layer of about 30 cm, if the basal fertilizer is applied here, it is conducive to the absorption of the root system. In particular, phosphate fertilizer, due to low solubility, phosphate ions diffuse very slowly in the soil, so it is more necessary to apply to the distribution layer of sweet potato roots.

Second, the top dressing should be accurate, timely and fast-acting to meet the needs of sweet potatoes in various critical periods.

1. Seedling fertilizer, nitrogen fertilizer can be applied about 7 days after cuttings, mainly based on urea, insert a small hole with a stick next to each stick, and then put a small pinch of urea into it and then seal the soil and water enough. Or use human manure and urine to mix about 3 times of water, apply about 600kg per mu, and pour it near sweet potato seedlings.

2. Strong seedling fertilizer, about 40 days after cuttings, about 5 kg of ammonia nitrate and about 10 kg of potassium sulfate can be applied per mu, which can make the stems and leaves grow early, seal the ridge early and set potatoes early.

3. Potato fertilizer, about 100 days after transplanting, at this time sweet potatoes have been formed, mainly potassium fertilizer, about 10 kg of potassium sulfate per mu, or about 150 kg of plant ash per mu.