What are the common problems in spring radish cultivation?

Choose varieties with strong winter characteristics and are not easy to sprout early.

The sowing date of spring radish is appropriately delayed, and Sichuan is suitable for sowing in October and November, with a seed amount of kilograms per 667 square meters.

The row spacing is slightly smaller than that of winter radish, with a row spacing of 30 to 33 cm and a plant spacing of 25 to 28 cm.

Heavy application of basal fertilizer and timely seedling, light application of seedling fertilizer, top dressing 1 2 times at the sporking stage of fleshy roots, and other techniques refer to winter radish.

Sowing date selection It is very important to choose a spring radish sowing plan. The seeds were sown too early, the ground temperature and temperature were low. After the seeds germinate, the low temperature effect can be felt, and through vernalization, it is easy to sprout and flower; Sowing too late and warming up quickly.

The development of fleshy roots is hindered and the yield is reduced. In principle, it is advisable to stabilize the sowing period at a temperature of 10 cm above 10 ° C. In the middle and lower reaches of the Yangtze River, open-field cultivation is generally in mid-to-late March, and the soil can be sown after thawing, no later than early April.

Covered with plastic film, it can be planted 5 to 7 days in advance. It can be grown in large, medium and small plastic sheds. It can be planted from February to March and harvested from April to June.

This is the off-season for vegetables, which can enrich the market varieties, ** preferential and efficient.

Spring in the compass common problems, you have to think about the pattern well, the pattern is good, very good, it can grow luxuriantly simulating flying, do not get a good soil to raise without giving him trouble to save him good, he can not grow a good radish, in this case you should carefully ponder the talent. But i is good.

Agriculture is an industry that produces food and industrial raw materials through the cultivation of plants and animals. Agriculture belongs to the primary industry, and the science that studies agriculture is agronomy. The objects of labor in agriculture are living animals and plants, and the products obtained are the animals and plants themselves.

We refer to the various departments that use the laws of growth and development of animals, plants and other organisms to obtain products through artificial cultivation as agriculture. Agriculture provides basic products that support the construction and development of the national economy.

1.Determine the appropriate sowing date.

Carrot spring sowing too early is easy to sprout, too late sowing will make the fleshy root swelling in the high temperature period of more than 25, produce a large number of deformed roots, carrot fleshy root swelling suitable temperature in 18 25. According to the production experience, under the premise of selecting spring-sowing varieties that are resistant to sprouting, the seeds can be sown when the average daily temperature is 10 and the average night temperature is 7. In southern China, sowing can be done in early March.

2.Fertilization and seed soaking and germination.

Carrots are root vegetable crops, and sandy loam soils or loaby frontal soils with deep soil, fertile soil, and good irrigation and drainage should be chosen. Before sowing, deep ploughing and fine harrowing, the depth of tillage is not less than 25 cm. Combined with tillage, 5,000 kg of rotting farmhouse fertilizer, 15 kg of phosphorus and potassium fertilizer and fast-acting nitrogen fertilizer were applied per mu.

Carrot seeds are not easy to absorb water and breathe, and the low ground temperature for spring sowing leads to slow seed germination and emergence. In order to promote the germination and emergence of early allergenic Jibi, the germination should be soaked before sowing, the method is to soak the seeds in 30 35 warm water for 3 4 hours, and then use a wet towel or bag to moisturize after fishing, and place it at a temperature of 25 30 to promote germination for 3 4 days, stir and rinse regularly, and then mix wet sand and sow after 80% and 90% of the seeds are exposed. After sowing, evenly cover a thin layer of bridge soil, cover with mulch, and can also be replaced with straw or grass.

3.Field management.

To keep the soil moist after sowing, water immediately or [shielded] to create conditions conducive to seed germination and emergence, and remove the mulch in the windless morning after the seedlings have emerged. During the seedling period, the seedlings were carried out twice, and the first time was carried out when there were 1 2 true leaves, and the inferior seedlings, weak seedlings and over-dense seedlings were removed. The second time is carried out when there are 3 4 true leaves, and the seedlings are set after the seedlings, and the seedling spacing is 9 cm, and the row spacing is 15 18 cm. Cultivating and weeding is the key to good carrot yields.

In addition, pay attention to soil cultivation during cultivation to prevent the top of the fleshy roots from exposing the ground to form green shoulders.

In order to make carrots abundant, water and top dressing 2 3 times throughout the growth period. The first time was carried out 5 7 days after the seedling setting, combined with watering, 3 kg of ammonium sulfate and 3 kg of phosphorus and potassium fertilizer were applied per mu. The second time in 8 9 true leaves, the fleshy root swelling stage, that is, the period when the most water and fertilizer is needed, combined with watering per mu to apply kilograms of ammonium sulfate, phosphorus and potassium fertilizer.

4.Harvest in phases at the right time.

Most of the spring-sown carrots in Guangdong are sown in early March and generally harvested in early June, and when they are ripe, the leaves no longer grow, no new leaves are seen, and the lower leaves turn yellow. Harvesting too early or too late will affect the commercial traits of carrots, thus affecting yields. If there is 0 3 cold storage, it can be stored in it after harvesting, and it can be ** all summer.

Winter radish is planted in late August to September in mild areas, in September in low-heat areas, and in mild and cool areas. Spring radishes are generally sown from October to November. Summer and autumn turnips are sown in May-July.

If the temperature is low, 500 kg of manure can be diluted. When the fleshy root is hypertrophied, top dressing 2 times, every other time, top dressing, 500 kg of manure or 20 kg of fertilizer per mu can be topdressed. Radish has a wide range of planting area in China, because of the strong environmental adaptability of radish, the amount of land per mu is huge, and the market prospect is relatively broad, so it is considered to be a vegetable planting industry with great development potential.

<> if it is cultivated early in autumn, it is recommended to choose a one- or two-year-old herbaceous plant with high water content and white radish in the cruciferous family. White radish has strong adaptability, and can be cultivated in the open field all year round in southern China. Autumn is the season with mild climate, abundant sunshine and abundant rain, which is the highest yield and best quality production season in the annual production of radish.

white radish varieties that are not easy to produce spicy taste; If it is cultivated in late autumn and early spring, you can choose white radish varieties with strong winter and not easy to sprout; If sown in September, most white radish varieties are suitable for planting.

Turn the ground, add an appropriate amount of compound fertilizer, add fermented cow and sheep manure, mix well, hit the bottom fertilizer enough, hit the bottom fertilizer enough, and when the radish is expanded, pour some potassium fertilizer solution, add some self-foaming fertilizer, ten days and half a month, depending on the situation. Anyway, this is how I operate, before planting with a lot of radishes, we first plow the soil, put some organic fertilizer in the soil, and then use a rake to bury the fertilizer in the soil. This will make the soil very high in nutrients and then let the sun shine on the soil for about a week, which can completely eliminate some of the weeds and winter eggs.

The fleshy root needs the most water during the vigorous growth period, so it is necessary to keep the soil moist to prevent the soil from drying out and wet, and apply water to the manure of rotting acquaintances, and increase phosphorus and potassium fertilizer. Radish growth requires plenty of light. If there is enough light, the plant grows robustly, has strong photosynthesis, and accumulates more photosynthetic products, which can provide a lot of nutrients for the expansion of fleshy roots.

Radish yields are reduced when grown in conditions of insufficient light, and the quality of fleshy roots decreases.

When planting radish, it is not said that it must be planted in any season, but it can be planted in all seasons. To plant radish greens, we must prepare the land and fertilize, and then weeding and picking, picking some weak seedlings or diseased seedlings, selecting the bad ones, and leaving the good ones, so that we can better plant good radish.

Yes, be sure to plant in the spring. There are many management points, such as variety selection, land preparation and fertilization, field management, appropriate sowing and paying attention to the harvest time, late harvest also has a certain impact on the high yield of radish.

It is not necessary to plant in the spring, and generally Hunan is planted in the autumn. The soil needs to be deeply cultivated and fertilized. Good seedlings. After the seedlings are set, a top dressing can be carried out. Cultivate in time to keep the soil moist.

Radish does not necessarily have to be planted in spring, it can also be planted in other seasons, and it is necessary to master the selection of excellent varieties when planting, choose an appropriate time to plant, and be optimistic about a fertile land to plant.

Before sowing, deep ploughing 2 3 times, ploughing depth is not less than 20 cm, the last ploughing mu to apply 3000 kg of decomposed organic fertilizer and 30 kg of ternary compound fertilizer. Generally, according to the bag ditch 1 meter to make furrows, in which the furrow surface is wide meters, the furrow surface is shaped into a turtle's back shape stupid skin Zheng. The furrow is wide and deep.

Generally, precision acupuncture is used. Sow two rows per furrow, row spacing meters, hole spacing meters, sowing 1 2 grains per hole. Hold the bottom of the water before sowing, and spray the pre-bud herbicide after sowing to cover the film.

After the emergence of seedlings, it is necessary to break the membrane in batches in time to introduce seedlings, and check the seedlings in time for about the tenth day, 2 3 true leaf time seedlings, and set the seedlings when the "big belly" is broken.

Radish planting tips.

1. Land preparation treatment.

Radishes are generally planted in the autumn when the temperature is more suitable, in early to mid-August, and can be harvested after November. Before planting, it is necessary to fertilize the whole and turn the soil completely, so as to ensure that the soil is loose, the drainage performance is good, and the furrow surface should be prepared.

2. Watering and fixing roots.

When planting radish, sprinkle the seeds evenly on the surface of the treated soil, then cover the upper soil, water thoroughly to fix the roots, cover the entire planting area with mulching, cover the seeds, and retain water and moisture. In addition, in the rainy season, it is necessary to pay attention to drainage and waterlogging prevention to prevent the roots of radish plants from soaking and rotting, which will affect the growth of plants.

First of all, we must pay attention to the soil moisture of carrots, secondly, we should also spray some antibacterial drugs when planting carrots, and secondly, we should also water more and fertilize more, so as to improve the yield of carrots, and also make carrots grow bigger and stronger, and the taste will be better.

Pay attention to the weather, pay attention to the temperature, be sure to choose high-quality root seedlings when planting radish, and then plant them in fertile soil, plant them at a distance, water more and fertilize more, pay attention to the insect disaster of radish at any time, and spray pesticides on time.

It is very important to pay attention to the condition of the soil, to maintain adequate nutrition, to pay attention to the temperature, and to pay attention to the prevention and control of pests and diseases.

During the planting of radish, we should maintain sufficient nutrition, apply more farm fertilizer, organic fertilizer, nitrogen, phosphorus and potassium fertilizer, you can also increase urea, ammonium sulfate, etc., and also need an appropriate amount of watering, maintain the principle of less watering and frequent watering, now during the growth of the fruit, you must not water too much, and also pay attention to the prevention and control of pests and diseases, pay attention to weeding, pay attention to soil disinfection, you can make autumn radish grow better.