When is corn sown? When is corn planted and when is harvested

The test site should be sown within the sowing date required by the test plan, combined with local climatic conditions, production habits, field soil moisture, etc. If the test site believes that the sowing time required in the test plan is inconsistent with the actual local situation, it is easy to encounter difficulties in overwintering (overwintering) the plant, it is susceptible to weeds, or it is necessary to make a large adjustment due to the late receipt of the sowing materials, the test point should negotiate with the National Animal Husbandry Station before the sowing time required by the test plan to determine whether the sowing time can be changed, and the sowing time cannot be changed without authorization.

When is summer corn planted?

Entering June, that is, the wheat harvest period, after the wheat harvest, it is the summer corn sowing time. In fact, the sowing time of summer corn should be determined according to the local climate, precipitation and other conditions.

1. According to the moisture situation, the sowing time of summer corn is best in mid-June, that is, in mid-June, it is the most appropriate, of course, according to the maturity time of wheat in various places, in Henan Province, it is generally harvested in early June.

2. The depth of summer corn sowing is best at 4-5 cm, and each pit is sown with 2-3 grains, which is the most familiar to farmers. Too little, the corn harvest is not good.

The sowing of summer corn needs to pay attention to the season, and the current corn sowing has also been tested and determined by scientific data.

Generally speaking, the best sowing date is defined as the sowing date when the highest yield is obtained in most years. To determine the sowing date, it is necessary to grasp the important meteorological factors that affect the formation of corn yield. Of course, in addition to considering the temperature and moisture conditions at the time of sowing, we should also consider the moisture ** problem in the middle and late stages of corn growth.

Due to the limited period for maize growth in the summer maize area, in order to strive for sufficient heat, make the maize fully mature, harvest in time, obtain higher yield, and do not delay the normal sowing of wheat after stubble, the earlier the sowing date of summer maize is required, the better. That is, the winter wheat is harvested immediately after hanging tillage and stubble is eliminated and then sown, or the wheat is sown with a hard stubble planter immediately after harvesting.

According to the test, sowing one day earlier can extend the grain filling period by one day, increase the grain weight and increase the yield. In order to sow early, in places where some caloric resources are slightly lacking, summer-sown corn can also be interplanted in the wheat row 10-15 days before the wheat harvest, and then watered with wheat yellow water to promote its early emergence and corn has emerged and grown 2-3 leaves when the wheat is harvested. However, it is not easy to grasp the seedling density in the practice of intercropping, and then harvest wheat after the emergence of seedlings, which is easy to cause damage to seedlings, especially in mechanical harvesting, the damage is more serious, and it is difficult to achieve the whole seedling.

Therefore, the above content is the best time to test summer corn sowing, which also has a lot to do with the healthy growth of corn in the later stage.

If the farmers plant spring corn, they will sow it during the rain in the valley of the 24th solar term; If the summer corn is sown, it is sown when the miscanthus is planted; It is not wrong to plant according to the 24 solar terms;

Corn seeds germinate at 5 degrees Celsius, so they can be sown if this condition is met. In general, seeds can be sown when the surface temperature is stable at 10 or more. If the ground is humid, sowing should be shallower, and vice versa.

Of course, the sooner the better. Because the temperature is getting colder.

It takes about 90 days from sowing to harvesting, and sowing is generally around May of the lunar calendar.

The time and depth of corn planting should be mastered, and the next year will be a bumper harvest.

Corn sowing time, as follows:

Corn seeds are planted from late April to early May, and can also be sown in mid-July. Corn, also known as bud rice, is native to Central and South America and is an important food crop that is cultivated all over the world. Corn can be eaten both as a staple food and as a vegetable, and it can also be processed into various foods such as popcorn, cornstarch, etc.

Corn kernel is composed of four parts: epidermis, endosperm, germ and root crown, and its deep processing is divided into dry and wet according to its structural characteristics. The dry process refers to the dry grinding of corn, and the product is mainly used in various food, feed and fermentation industries. Wet processing is the use of physical methods to divide corn kernels into five products: corn syrup, corn starch, corn germ, corn gluten protein and cortex fiber.

How to buy corn

1. When choosing corn, you should also decide which corn to buy according to your own taste, generally, white is waxy corn, yellow is sweet corn. Some colorful ones are also sweet corn, some people like to eat sweet corn, and some people like to eat waxy corn, the difference between waxy corn and sweet corn is the difference in sugar content.

2. When we choose corn, we must first choose tender ones, because tender corn contains a lot of water, tastes good, sweet and soft. And the old corn does not taste very refreshing, and when you eat it, you will feel very tired and laborious.

3. When choosing corn, you should also choose the ones with tight grains. If the grains are sparse, the corn is relatively small, if there is room to choose, if under the same **, of course we have to choose more grains.

4. When we choose corn, we should also choose the full grains, if it is full, it means that the moisture is sufficient and relatively fresh. If it is deflated, it means that the water has evaporated, it is not fresh, it does not taste good, and it may have been left for several days.

Corn is generally harvested from August to October, and the time of harvest varies depending on the region and the time of sowing.

Summer sowing generally matures from mid to late September to mid October, and spring sowing generally matures from early September to mid September. The maize in the north generally matures from mid-September to the end of September, and the maize in the south generally matures after mid-October.

How to tell if it is mature:

1. Look at the milk line: the back of the corn will have a line from the top to the bottom, and the color will change from dark to light, when the milk line disappears completely, it is the best time to harvest.

2. Look at the leaves: When the number of green leaves on the corn plant is about 5, it is the best time to harvest.

Corn is divided into spring corn and autumn corn, spring corn is sown in late April and early May, and can be harvested in late August; Autumn maize should be sown no later than mid-July and harvested in mid-to-late October.

Fresh corn cultivation technology, seeds are sold by seed companies all over the country.

Fresh corn varieties require good waxiness, thin peel, delicate taste, good commercial traits, medium ears, and are suitable for cooking and quick-freezing processing. At present, the fresh corn sold on the market includes waxy corn, sweet corn, black corn, colored corn and ordinary corn, etc., and the commodity traits are different, resulting in uneven production efficiency and large differences. To increase the income of fresh corn, the key is to choose the right varieties of good varieties.

Waxy corn is the preferred variety for fresh corn. Its cultivation technique:

1. Sow seeds at the right time. For open-field cultivation, the suitable sowing period in spring is that the ground temperature is stable at more than 10 degrees, and the seedling emergence period is best after the local late frost period; The summer sowing period is subject to the temperature above 16 degrees at the corn filling stage.

2. Isolation. The cultivation of fresh corn must be isolated from ordinary corn to prevent the quality of fresh corn from being affected by stringing. The time distance of space isolation should be more than 300 meters, and the interval between the sowing dates should be more than 15 days when time isolation.

3. Fertilization of the land. It is best to choose a two-pronged soil with fertile soil, high organic matter content, good drainage and irrigation conditions, and good soil permeability. In order to improve the quality of fresh corn, foot fertilizer should be applied when preparing the land, organic fertilizer should be increased, formula fertilization should be applied, and 3000-4000 kg of high-quality farm fertilizer, 50 kg of ternary compound fertilizer should be applied per mu, and an appropriate amount of zinc, boron and other micro-fertilizers should be applied.

Fourth, sowing. Before sowing, manual selection was carried out to remove deflated grains, mold grains, broken particles and impurities, and then soaked with potassium dihydrogen phosphate solution for 8-12 hours. The sowing method is planted in wide and narrow rows, with a wide row of 80 cm, a narrow row of 50 cm, and a plant spacing of 25-30 cm, with 3500-4000 plants planted per mu.

5. Field management.

1. Remove tillers. Due to the characteristics of fresh corn varieties and the sufficient base fertilizer during planting, the plant has more tillers, so the tillers should be removed in time at the seedling stage.

2. Leave double spikes. In order to improve the commercial traits of the ears, a maximum of 2 ears should be left in each plant, and the rest of the ears should be removed as soon as possible.

3. Top dressing. Top dressing should be carried out according to the seedling condition, in 12-14 leaves, and 10-15 kg of urea per mu.

4. Pest control. Fresh corn generally has the highest sugar content, good quality, corn borer is more harmful, in the big flare stage with BT biological particle insecticide or Bataan soluble powder core control, it is strictly forbidden to use highly toxic pesticides with a residual effect period of more than 20 days.

6. Harvesting. Fresh corn is harvested because it is a tender ear, it is very important to harvest it at the right time, harvest too early, dry matter and various nutrients are insufficient, the nutritional value is low, the harvest is too late, the skin becomes hard, and the taste becomes worse. The harvest period is 20-23 days after pollination, and there are slight differences among varieties.

Inspections begin 20 days after pollination to ensure that the harvest is appropriate.

7. Post-harvest treatment. If you need to sell long-distance sales, certain preservation measures must be taken to prevent corn ears from consuming their own nutrients and water due to respiration, resulting in a decline in freshness and quality.

Corn is sown in April-May in the spring and in July in the fall.

Corn is an annual herbaceous plant of the genus Poaceae, also known as bud grain, bud cob, maize, pearl rice, etc., which is an important food crop and feed crop in China, and is planted in the north and south of China. Corn is very popular among consumers in the market, it is divided into spring corn and autumn corn according to the time of planting, spring corn is sown between April and May, and can be harvested in late August. At this time, the climate is more suitable, the temperature and humidity are more suitable, and the germination rate for sowing is relatively high.

Autumn maize should be sown no later than mid-July at the latest, and harvested in mid-to-late October. In the life of maize, according to morphological characteristics, fertility characteristics and physiological characteristics, it can be divided into several different growth stages, each stage includes different growth periods, and these different stages and periods have their own characteristics and are closely related.

Precautions for corn planting

1. Soil selection: Choose soil rich in organic matter, loose and well-drained. Corn has high soil requirements, and sufficient nutrients and suitable soil pH can promote growth and yield.

2. Water management: Sufficient water is needed during the corn growth period, especially in the booting and filling stages of rapid growth. Make sure the soil is moderately moist, but avoid waterlogging.

3. Fertilization: Reasonable fertilization according to soil quality. Organic fertilizers should be applied appropriately before sowing to increase soil fertility and improve soil structure. In the process of corn growth, an appropriate amount of nutrients should be supplemented according to the required nutrients of the plant.

4. Weed control: take control measures in time to prevent the competition of weeds for corn growth. Weeds can be managed by hand weeding, mulching the lawn, and spraying herbicides.

5. Pest control: closely observe the condition of corn plants and leaves, and take timely control measures once pests and diseases are found, such as spraying appropriate pesticides.

6. Interval and density: According to the variety and soil conditions, the interval and density of corn should be reasonably determined to ensure that each corn plant gets enough nutrients and space.

8. Natural factors: pay attention to the weather forecast and arrange agricultural work reasonably. In the event of extreme weather (e.g., strong winds, heavy rain, drought, etc.), protect the corn plant to reduce losses.

Spring corn is generally sown from late April to early May, and summer corn is roughly around June.

After the corn is sown, only when the ground temperature of 10 cm is stable through 12, the effect of germination in 7 days will be achieved, if the ground temperature does not reach this temperature, the corn seed is in the soil for too long, the germination rate will be low, and the seeds that barely germinate will also form weak seedlings. Therefore, corn sowing must be based on temperature changes, timely grasp of sowing time. Do not sow too early, corn is not sown earlier the higher the yield.

If you plant too early, the yield will be low.

Only when the local wheat is planted in the first 15 to 20 days of the harvest is the period when the corn yield is at its highest. In addition, it is necessary to select suitable varieties, and maize varieties should not only be excellent varieties that adapt to the local climate, but also varieties with high comprehensive characteristic indices such as lodging resistance and stress resistance.

How to grow corn:

1. Soil preparation and fertilization.

Before corn planting, you need to prepare the land and fertilize it, select a suitable plot, and then turn the soil deeply, with a depth of about 35 cm, so that the soil becomes loose and breathable, and apply a sufficient amount of fertilizer in the soil as the base fertilizer, and ridge after the fine rake is leveled, so that you can prepare for planting.

2. Sowing and planting.

Select the appropriate variety of corn grains, sow them into the soil according to the row spacing of 65cm, plant spacing of 18cm, and the depth of 5cm, and need to be watered appropriately after sowing to keep the soil slightly moist, so that the corn can quickly emerge and grow, and it should pay attention to the time after the seedlings are replenished.

3. Maintenance management.

After corn planting, it needs to be well maintained and managed, it needs to be cultivated and weeded regularly during the growth period, and it is also necessary to apply thin fertilizer to it regularly, and it is necessary to pay attention to the prevention and control of pests and diseases during the maintenance period.