In 2014, corn will be harvested in a few months

Not only in 2014, but also in other years, the corn can be harvested in August. However, the climate varies from region to region, making it impossible to determine the exact date of harvest.

Explanation of the specific time of corn harvesting:

1. The sign of full maturity of corn is that the milk line of the grain disappears, the grain becomes hard, slightly dry and concave, and the bracts and leaves of the ear are dry and white, loose and loose. The grain milk line appears 28-30 days after the pollination of corn flowering. When the starch is enriched and deposited at the top of the grain and begins to form solids, and the lower part is still a milky liquid, the interface between the solid and the liquid is formed, and the interface from the outside forms a line, which is the milk line.

From the appearance of the milk line to the disappearance, the corn has to go through three periods: the formation period, the semi-milk stage and the milk line disappearing period, a total of about 20 days.

2. Many times the time for farmers to harvest corn is in the semi-dairy stage, and the corn kernels at this time are only 90% fully ripe. After the semi-milk period, the corn kernels continue to be filled, and the milk line disappears after 7-10 days, when the 1000-grain weight of the corn grains reaches the maximum, and the harvested corn yield is the highest and the quality is the best. Therefore, under the premise of not affecting the sowing of the next crop, the corn should be harvested as far as possible until the grain maturity stage, so that the corn can obtain higher yield and excellent quality, so as to obtain higher income.

Genetically modified corn came down in June, and now it's everywhere in the market, and it's only in August that ordinary corn is harvested.

Now there's corn for sale....Roasted corn, boiled corn....Both.

The best time to harvest corn is generally between August and October.

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. The harvest period of corn is generally divided into three stages, namely: milk maturity stage, wax maturity stage, and completion maturity stage.

Corn is best harvested at the ripening stage, when the straw turns yellow, the leaves wither, the ears and stems are white, dry and loose, and the grains are solid and shiny, showing the color of the variety. If the corn is used for both grain and silage, or for early vacancy, post-ripening measures can be taken, that is, in the middle and end of wax maturity, control the stalk in advance, and pile up the corn plant with ears for a period of time, so that the nutrients stored in the straw, stems and leaves, ears and leaf sheaths continue to be transported to the grain to increase the yield.

Growth habits of corn

1. Temperature

Corn is a temperature-loving crop and requires a higher temperature throughout the growth period. The biologically effective temperature of maize is 10. Seed germination requires 6-10, less than 10 germination is slow, 16-21 germination is vigorous, the optimal temperature for germination is 28-35, and germination is stopped above 40.

2. Illumination

Corn is a short-day plant that can flower and bear fruit in short-day (8-10 hours) conditions. The spectral composition has a great influence on the development of maize, and it has been studied that short-wave maize such as blue grows fast during the day, and develops fast in the morning or evening with long-wave light such as red.

3. Moisture

Corn has a tall plant and a large leaf area, so it also requires more water. The optimal precipitation during the growth period of maize is 410-640 mm.

Each corn variety has a relatively fixed growth period in the same area, and only by meeting the requirements of its growth period and making the corn mature normally can we achieve high yield and high quality. Let's take you to understand when the corn is ripe and the corn harvest time in various places.

1. Corn ripening time.

Generally in August-October, it is inconsistent from place to place. Summer sowing in Hebei Province generally matures from mid to late September to mid-October, and spring sowing generally matures from early September to mid-September. Corn planting is divided into spring sowing and summer sowing, the north is mainly spring sowing, mainly referring to Liaoning, Jilin, Heilongjiang and the north of Hebei, etc., other places are basically summer sowing and spring sowing at the same time, the maize maturity period in the north is generally from September 15 to September 23, and the south is mostly after mid-October.

Second, the corn harvest time in various places.

1. Hebei corn harvesting time.

Summer sowing in Hebei Province generally matures from mid to late September to mid-October, and spring sowing generally matures from early September to mid-September.

2. Henan corn harvesting time.

The suitable sowing period in northern and western Henan is from October 4 to 13, and the sowing period in early October in some hilly and mountainous areas is appropriate.

The suitable sowing period in central and eastern Henan is from October 8 to 17; The suitable sowing period in southwest Henan is from October 15th to 23rd;

The suitable sowing period in southern Henan is from October 17th to 26th.

3. Shandong corn harvesting time.

Because the spring corn in Shandong is sown early and the growth period is long, the yield is high. Spring corn is generally planted in early April and harvested at the end of August.

4. Heilongjiang corn harvesting time.

The maturity period of Heilongjiang common corn is generally on October 1 (or Mid-Autumn Festival, that is, the eighth month of the lunar calendar) every year.

XV) Before and after.

5. Corn harvesting time in Hubei and Hunan.

Hubei and Hunan corn are generally from mid-June to August, and depending on the type of corn, the sowing time is in March.

6. Harvesting time in Liaoning.

The harvest time in Liaoning is between October 1st and October 20th, which should be considered according to the temperature and frost period.

During the cultivation process, amino acids can be used.

Foliar fertilizer, supplemental nutrients.

Corn planting is divided into spring sowing and summer sowing, the north is mainly spring sowing, summer sowing and spring sowing in other places, the maize maturity period in the north is generally from September 15 to September 23, and the south is mostly after mid-October. In general, the time of corn ripening and harvesting is generally from September to October, and the timing is not consistent across the country.

Corn usually ripens in the fall. The corn harvest in Tohoku is around October 1.

The harvest time of corn is probably concentrated in August and October, why is the span so large? It is necessary to take into account the difference between spring corn and summer corn, August is mainly the harvest time of spring corn, and from late September to early October, it is mainly the harvest time of summer corn

The corn grown in China is divided into spring-sown corn and summer-sown corn. Spring-sown corn is generally harvested in July and August in autumn, and summer-sown corn can be harvested in September and October in autumn.

The planting range of spring and summer sowing corn is mainly different from the regional accumulated temperature conditions, and the spring sowing corn is mainly planted in the east of China.

In the northern, northwest and northern parts of China, summer-sown maize is mainly planted in the North China Plain and the Huang-Huai-Hai Plain.

Region. Henan: The time to plant corn is in May, after the wheat is harvested, the corn is harvested around the Mid-Autumn Festival, which is the end of September.

Shandong: Because spring corn is sown early and has a long growth period, the yield is high. Spring corn is generally planted in early April and harvested at the end of August.

Tohoku: The sowing time is after the valley rain (around April 20) and before May 10, and the harvest is generally after October 1 and before October 20.

South: Corn can be planted in the south for two seasons in the Yangtze River basin.

Spring-sown corn is generally sown at the end of March and early April, and can be picked in early to mid-July.

Hebei: 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.

Anhui: Generally, after the first rain of spring, it is the best time to plant spring corn. However, in order to prevent pests and diseases, it is recommended that spring corn should be sown early, and it should generally be sown before mid-April.

Hunan: Spring corn is generally sown in early to mid-April and harvested in early to mid-August. Summer maize is sown from late May to early June and matures in mid to late September.

All in all, different regions and different environments have different harvest times for corn planting. It is recommended that corn growers choose the planting time of corn according to the local environment.

When will this corn be harvested? Not necessarily. First of all, let's take the north as an example, the north is all single-crop rice, that is, corn is planted once a year, then this time it is cultivated in May, and then by about October, the corn is all ripe.

The corn is harvested as soon as it matures.

If there are three crops of rice in the south, they are generally three or two crops, then the corn can be harvested in August, and in January in winter, which is such a situation, because the climate is different, the number of corn harvested is also different.

Harvest corn should be determined according to the sowing time, distribution area, in the southern region in July and August sowing corn, in October when the corn is mature and picking, in the northern region in March and April sowing corn, in June corn maturity on the picking of old fighting, the growth rate of corn is relatively fast, like to grow in a high temperature and dry environment.

Corn does not have high requirements for the growth environment, generally the corn needs to be harvested in several months according to the sowing time, the distribution area to decide, corn in the normal growth environment, can be harvested in late spring and early summer in June, and corn can also be harvested in autumn and October.

Corn generally likes to grow in a high temperature and dry environment, the growth rate of corn is relatively fast, most of the corn is sown in July and August in the southern region, and the corn is ripe and picked in October, and the corn is sown in March and April in the northern region, and the corn is picked when it is mature in June.

1. Soil demand

Corn likes deep soil, breathable, water and fertilizer retention of strong soil, we can plant corn into ordinary garden soil, add an appropriate amount of ripened organic fertilizer, clay and sand to improve the soil substrate, so that the fertility of the soil is higher.

2. Seed treatment

Take out the seeds from the mature corn, select the excellent seeds that have not suffered from pests and diseases, and the fruits are large, and then soak the seeds in clean water for about 8 hours, and then put them in the sun to dry, which can increase the germination rate of the seeds and make them store for a long time.

3. Sow seeds and sprout

It is necessary to dig a small pit in the soil, sprinkle 3 4 seeds on the soil, the distance between them needs to be kept about 30 40cm, spread a layer of fine soil on the seeds, and carefully raise and cultivate them under sufficient light, and wait for about 3 days for the seeds to take root and sprout.

4. Seeding management

After the corn seeds take root and germinate, they are watered every 3 days, nitrogen, phosphorus and potassium fertilizers are applied once every half month, and the surrounding weeds are cleaned up regularly, and insecticides are sprayed once a month to control the ambient temperature at about 20 25 to make corn seedlings grow better.

Spring corn is harvested in August every year, autumn corn is harvested in October every year, corn in the south is harvested in mid-October every year, and corn in the north is harvested in September every year.

Spring corn is sown in April-May every spring and harvested in August, autumn corn is sown in July and harvested in October every autumn, and the harvest time is different in different regions, the northern region is generally harvested in September, and the southern region is harvested after the middle of October each year.

Planting corn can take the method of sowing, first choose a flat terrain, loose soil, nutrient-rich field, after the finishing treatment, apply the rotten organic fertilizer, and then sow the corn seeds with full grains in the field, put 2 seeds in each hole, and finally cover the thin soil, watering once permeable.

After the corn sowing is completed, it is necessary to dig a ditch at a distance of 5 cm from the seed, and then apply the available nitrogen fertilizer to promote the growth of the plant.

Common pests and diseases of corn are brown spot, stem rot, thrips, corn borer, cotton bollworm, etc., when preventing brown spot, it is necessary to regularly spray fungicides such as methyl polylite, and to prevent stem rot, foliar fertilizer should be sprayed, for thrips, corn borer, cotton bollworm and other pests, imidacloprid and acetamiprid pesticide spraying treatment should be used.