When should spring peanuts be sown? What are the effects of early sowing on emergence?

In these two days, the temperature gradually increases, just like the maximum temperature in Henan reaches 20°C. Before and after the Qing Dynasty, it was time to grow. Some peanut growers, after the temperature rises, start panicking, always afraid that on the day of sowing, there will be less peanut production.

Although these two days have risen, the temperature is still stable, and in April, there is usually a cold spring. After the rain, after cooling, the peanut seeds extend in the soil and the sediment is slow, so the chance of rotation will increase, thus affecting the eclipse rate and not achieving the purpose of increasing.

This is a premature disadvantage of peanuts, the earlier in the spring they will not be sown. There are also some farmers who say that every year they are planted in the sky, and all say that before and after Qingming, the plant melon beans. It is clear that the time for peanut sowing has come.

Is this applicable to all regions to help later? In the past, oil had some guidance for agriculture, but there was a certain gap between the temperatures of the whole country, and not all areas were sown in Qingming, some were films, some were exposed, the methods were different, and then the sowing time was different.

How do you determine the time of peanut seeds? Pay attention to the temperature and determine the love of the soil. After peanuts, the minimum temperature of a common peanut is 15, and it is in the soil at low temperatures for a long time, so even if it is fired, the embryo is prone to decay.

The temperature is different in each zone, and the controlled throttling time is different. We must see that the local soil temperature can not be less than 15 ° C, 10 to 15 days after sowing, the temperature can not be less than 15 ° C, in the past, Henan, Shandong, some areas of Hebei, the time of peanuts is sown in late April, can be mainly focused on this time.

On the one hand, the temperature has stabilized, and it is basically 15 to 18, creating suitable conditions for peanut seedlings. On the other hand, it is too late this time to ensure that the peanuts have a suitable enough period of growth, which is beneficial for the whole and enhanced whole pods. Families of plant peanuts this year must pay attention to the timing of the sowing period.

First of all, don't blindly pursue sowing too early. When you look at the temperature rise, you will start sowing. If you encounter the cold of spring, it is easy to make rotten seedlings.

If you experience cold weather, the sowing time should be delayed. Secondly, if the temperature is low and the soil is more arid, it should be watered first, and the temperature is suitable for sowing. Temperature and humidity are important for peanuts.

The sowing time is generally in late April to early May for the trial period of spring peanuts, if the early planting will affect the flower bud differentiation, and in the case of spring cold or cold wave, the temperature decreases and the rain is easy to cause seed festering, if it is serious, it may lead to no harvest of grains.

The north is generally planted in mid-April, sowing early because the temperature is unstable, the temperature is too low will lead to no seedlings or low seedling emergence rate, and the seedlings will be frozen after they come out, so it is better not to sow too early.

In the south, it is generally planted before and after the valley rains, and the sowing is early, and the cold weather is not conducive to the growth of peanuts. Low temperature and high humidity are the main factors affecting peanut emergence. When the temperature is lower than 12 degrees for 7 consecutive days, peanuts are not easy to emerge.

Under normal circumstances, when the peanut is sown at about 5cm, and the ground temperature is above 15 degrees (some varieties will be higher), the emergence of seedlings is very good, if the temperature is too low, the temperature of peanut germination cannot be reached, it will cause the phenomenon of lack of seedlings. Pay attention to the change of temperature when sowing, if there is a cooling or the temperature is too low, you can delay the sowing for a few days.

The emergence rate will not be high, and the yield will be low. The best time to plant is from 10 to 25 April, with around 5 May in the northernmost areas.

The biggest impact of point 1 is likely to cause the seedling to not grow, point 2 is likely to cause the burden of cultivation to be very thin, and point 3 is likely to cause the impact of this sowing to be very bad. The best time to plant seeds is after the first rain.

It will make peanuts grow very slowly when they emerge, because the sowing time is very inappropriate too early, so it will affect the emergence of peanuts. The best time to sow peanuts is in April.

In fact, it will lead to a relatively low emergence rate, and it will also lead to a relatively small yield, and the shape of the growth is not very good, almost all of which are in April to May This point in time is the best time to plant peanuts.

Spring peanut sowing is too early, when spring peanut sowing, the temperature in some areas is not very high, or after sowing, there is rainfall and cooling weather, which is likely to lead to the seeds can not germinate normally, forming the phenomenon of lack of seedlings and broken ridges.

The suitable sowing time of spring peanuts should be adapted to local conditions, different planting areas, sowing time is different, in the actual process, many farmers like to determine the sowing time according to the grain rain solar terms, that is to say, the sowing will be carried out before and after the grain rain every year.

This will affect yields, and it will also cause yellowing of the leaves, and it will also lead to reduced yields. The best time to plant seeds is between April and May.

<>1. Spring peanut sowing is generally after the Qingming Festival, that is, April 10-15 is the best sowing period, sowing too early and the temperature is too low, which affects the germination rate of seeds, resulting in uneven seedlings, lack of seedlings and broken ridges and other problems; The most suitable soil temperature for peanut germination is above 11 degrees.

2. Seed treatment should be carried out before peanut sowing, and the peanut seed dressing and coating will help protect the peanut Qingzhi seed from being damaged by underground pests, and effectively avoid the bite of peanut fruit by underground pests in the middle and late stages.

Some farmer friends, in order to be the first, in advance in the "Qingming Festival" around the gradual mulching film planting is more risky, at the moment the soil temperature is slightly lower, the temperature difference between day and night is very large, planting too early, the seeds are not easy to sprout, will be selected into rotten seeds and dead seedlings. It is very easy to sprout after being violently cheated by the last frost and frost cracking. It's good to be in a hurry, but it will lead to huge losses if you make people in a hurry.

If only by spraying chemical fertilizers to prevent, it is indeed very difficult, there are some diseases in the ground, the sprayer is difficult to have good results, if you use branch pesticides to dress seeds, you can save a lot of things, and the control effect is good.

For example, chlorethoxonil has a good control effect on fruit rot and stem rot of peanut kernels, and can reduce rot seeds at the same time. If you have underground pests such as grubs and tigers in your field, then you can add acetamiprid, thiodicarb, or chlorantraniliprole, fipronil and other insecticides, which can not only kill underground pests, but also have a very good control effect on bud worms, which can reduce the frequency of taking drugs before budding. Under the premise of shelled peanut kernels, the normal shelf life is about half a year.

If the storage of the fiber is located to alleviate the natural environment under the trough of ultra-low temperature, <>

The shelf life can be slightly longer. However, Guangzhou is a significant area with continuous high temperature and humidity, which significantly accelerates the qualitative change of peanut species. If the summer harvest of peanut seeds is kept for the next spring seeds, and the shelf life has significantly passed, it will be a big discount to ensure that the seedlings are full and the seedlings are prosperous according to the germination rate.

In summer, peanut kernels are mostly planted after the wheat is perfected, or peanut kernels are planted in the wheat field. This kind of peanut kernel has a shorter growth and development time, and the density of the oil will be much lower. Sister Rong's family had planted spring peanut kernels and <> before

Summer-sown peanut kernels have also been planted. The density of peanut seed oil in spring is 30 percent, while the density of oil in summer sowing peanut kernel is only 223 percent. If we can keep peanuts to plant, we will keep spring peanuts to plant.

Due to the long growth and development time of spring flowers and good quality, this peanut species has a high germination rate. But if you have to keep the seed, you have to choose it carefully. Choose some peanut varieties that are uniform in size and consistent.

In that case, if you plant again next year, it will be the same peanut variety, and the maturity will be similar, and it will not happen that the early one has already been perfected. It's too late to ripen.

Sowing too early will affect the germination rate that occurs, and the indirect effect will affect the result of malnutrition.

Spring peanuts in the process of broadcasting, we must pay attention to seize the right time, sowing too early may cause the seeds to be frozen, sowing too late will affect the growth.

Peanuts are mainly distributed in Shanxi, Liaoning, Shandong, Hebei, Henan, Jiangsu, Jiangxi, Fujian, Guangdong, Guangxi, Guizhou, Sichuan and other regions in China. Distribution of peanuts abroad:

Asia, Africa, the Americas, Brazil, Egypt, Paraguay, India, Senegal, Sudan, Nigeria, Zaire and Argentina.

Peanuts are planted around the end of April to early May. In spring, when the ground temperature of the 5cm soil layer is stable at 12, pearl bean peanuts can be sown. Mulching cultivation can be slightly earlier 7-10 days.

1. Peanuts should be in sandy soil areas with warm climate and moderate rainfall, and the growing season is long.

2. Huayuanlingsheng has a certain adaptability to slightly acidic soil. It is a pioneer in the development of red loam soils, but high soil acidity requires the application of calcareous fertilizers such as lime to neutralize short-day crops.

3. However, it is not too sensitive to photoperiod and requires high heat. Sowing is only possible when the average daily temperature is stable above 12. The temperature of 20 to 28 is required during the main growing period. In autumn, when the temperature drops to around 11, the pods stop developing.

4. The growth period of Chinese flower production areas is 100 to 150 days. Individual late-maturing varieties can last up to 180 days. In general, early-maturing varieties have a short dormancy period.

Late-maturing varieties have a long dormancy period. The dragon-born breed is the most dormant. In addition to being affected by the seed coat, the dormancy of peanut seeds is also related to some hormones in the embryo.

With chemicals such as ethephonic kitin, seed drying and germination at appropriate temperature can relieve dormancy.

Usually peanut sowing period: when planting peanuts, the ground temperature is 12 cm deep, and the ground temperature is stable above 15 degrees for 5 days. Remember not to plant when the temperature is less than 11 degrees.

The peanut seedlings unearthed are not strong, which interferes with production. Generally speaking, the best time to plant peanuts is from late April to early May, which means that the best time to plant peanuts is before and after the rains. Masking film can be planted as early as late March.

However, because the climatic conditions are different in different regions, when planting peanuts, it should be decided according to the actual situation, but it must be ensured that it cannot be planted when the temperature is too low.

2-3 days before planting, the husked peanuts will be dried, and the husks will be removed after drying, and the seed coating agent containing fungicides such as Fengqia and Nongqia will be combined to complete the seed dressing. Plant 2-3 seeds per hole, the planting height should be inches, the soil layer with cohesive soil layer and excellent soil moisture can be moderately lightened, and the sandy soil layer with poor soil moisture can be moderately deeper, it is best to cover the area covered with plastic film in the spring peanut area, you can plant moderately to increase the production of peanuts, and the peanut planting area can be selected to interplant in the summer and plant early to increase the production.

1.Cultivation method. The cultivation method of peanut is based on outdoor sowing method and subfilm sowing method. According to the actual operation mode, it can be divided into manual planting and equipment planting.

2.Planting density. It is necessary to grasp the standard of reasonable dense planting. The key to the planting density of peanuts is the height of the green plant, the firmness area and the leaf area index. The density of peanuts depends on climatic characteristics, soil organic matter, species selected and cultivation.

3.Planting height. Usually, peanuts are grown about 5 cm. It is necessary to keep in mind the standard of "dry not deep planting, wet not shallow planting", clay soil should be shallow, sandy soil or block land should be deep. The maximum height of outdoor cultivation should not exceed 7 cm, and the shallowest height should not exceed 3 cm.

The best time to plant seeds is at the end of April and the beginning of May; Because the weather is relatively sunny at this time, there is basically no rain that is conducive to germination, and the subsequent rainy season is more conducive to the growth of peanuts.

The general planting time is around April to May every year. The basis is that the weather in April and May is relatively humid, and there will be a lot of rain, which can better help the soil replenish water. Therefore, it is more suitable for sowing.

Of course, around May every year. The basis is that there is more rain in this season, which can better replenish water and nutrients to the soil, so it is more suitable for planting and can better help seed development.

April to May is the best time for planting. This is due to the mild season and the temperature is not particularly high, so it is more suitable for planting.

Spring peanuts refer to"Beginning of spring"To"Lixia"Sow peanuts. It is an early or medium early maturing type of crop with weak light exposure. It is cultivated all over China.

There are many types and varieties of spring peanut cultivation, and generally multi-grain varieties are mainly planted in cold and cold areas with short frost-free periods in the north, and ordinary varieties are mostly planted in the northern peanut areas, followed by pearl bean varieties. Pearl bean varieties were mainly planted in the peanut area of the Yangtze River Basin.

The suitable sowing period was from February to mid-March in the spring and autumn peanut areas of southern China, and from March to late April in the spring-summer peanut intercropping area of the Yangtze River Basin. The suitable sowing period for large peanut and flower production areas in the north is mostly from late April to early May.

The temperature of peanut germination: pearl bean type and multi-grain type can germinate at more than 12, while ordinary type and dragon type can germinate at more than 15, and the sowing date is slightly later.

The sowing of spring peanuts at the right time can improve the utilization rate of land and light energy, make the plant grow short and strong, dense internodes, more branches, good root growth, more dry matter accumulation, more flowering, more fruits, high fruit satiety rate, and easy to meet the requirements of high yield and high quality. If sowing too early, the seeds can not germinate normally due to low temperature, the seedling emergence is slow, the chance of soil disease and insect damage is increased, the seedling emergence rate is low, the seedling growth is poor, and the differentiation and development of flower buds are affected. However, due to late sowing, the southern producing areas are in a high temperature and rainy environment, and peanuts are easy to grow and lodging, and there are few pods. Peanuts in central and northern China, especially common peanuts, often encounter autumn drought and low temperature during pod setting and maturity, which affect pod development and nutrient accumulation, resulting in low fruit satiety rate, kernel yield and oil content and reduced yield and quality. Interplanting or summer sowing of peanuts, the previous crops should be sown early varieties and early sowing to avoid the reduction of yield caused by late sowing of peanuts.