It was a hot summer and a summer maize season. Many areas also ushered in a hot and rainy phase in June. So everyone knows how to manage corn at this time? Today, let's take a look at the agricultural management calendar from May to September.

January and May Agricultural Arrangements

May is the broadcast period of summer corn, and the focus is on corn preparation.

The main solar terms: Lixia and Xiaoman.

Farming slang: Mai sets of corn to prevent deficiencies, wheat ridges are planted half a month ago; wheat harvest preparations should be carefully prepared to fully fight ahead.

1. Cultivated land preparation

The combined harvesting operation in the wheat field should be carried out when the water holding capacity in the field is less than 75%; the height of the stubble should not exceed 10 cm; the wheat combine harvester with the wheat straw crushing and throwing device should be used, and the wheat straw crushing length should be about 5 cm. Spread evenly. If there is no throwing device, the artificial throwing should be even, or moved between the rows of corn to be planted to facilitate corn planting.

2. Seed preparation

Choose the varieties that have passed the examination and are resistant to disease, high yield and high quality, and the different varieties should be properly mixed and planted, and the seed germination test should be done.

3. Fertilizer and pesticide preparation

According to soil fertility, target yield, fertilizer content, variety characteristics, soil characteristics, select suitable fertilizers, prepare pesticides, pesticides, fungicides and other pesticides.

Second, June farming arrangements

June is the sowing and seedling stage of summer maize. The focus of cultivation management is to plant seeds in time and cultivate strong seedlings.

Main solar terms: mango species and summer solstice.

Farming proverbs: Summer harvesting summer and summer tube, all pieces must be remembered; mechanical harvesting wheat high, burning wheat stubble is not safe; summer high temperature evaporation, wheat straw wheat to cover the field; pests and diseases comprehensive prevention, autumn crops should be early .

1. Sowing early when planting

Grab the seedling water to follow the principle of “the sooner the better,” and grab the time to broadcast early. Immediately after the sowing, the seedling water (Mengtou water) will be poured out. It should be poured and poured to facilitate the emergence of seedlings. The sweet corn is best poured first. Replanting and cultivating to ensure complete emergence.

2. Implement fine machine broadcasting

Maididi promotes the harvesting of wheat with straw shredding and spreading function, and controls the stubble height and chopping length. The length of wheat straw chopping should be less than 10 cm to prevent the accumulation of wheat straw. Promote integrated seed and fertilizer planters to ensure consistent seeding depth.

3. Scientific formula fertilization

Summer corn fertilization should follow the principle of “protecting nitrogen fertilizer, stabilizing phosphate fertilizer, increasing potassium application, and applying micro-fertilizer”, and do a good job of formula fertilization.

4. Prevention and control of pests and diseases

Promote the use of a seeder with a spray device to achieve a one-time spray of soil-sealed herbicide after sowing.

5. Seedling management

The seedling stage of maize is mainly long root, increased leaf, stem and leaf differentiation, which is the period that determines the number of leaves and the number of nodes, and is drought-tolerant. The main target of seedling management is to promote roots and strong seedlings, and strive for Miaoquan, Miaoqi, and Zhuangzhuang, laying the foundation for high yield. Mainly do a good job in chemical weeding, seedling replanting, seedling seedlings, seedlings, deep cultivating, topdressing, pest control.

Third, July farming arrangements

July is the three-leaf period to the jointing stage of summer maize, and the focus of cultivation management is to promote stalks and strong ears.

Main solar terms: small heat and great heat.

Farming proverbs: Xiaoshuda heat and sunburn, the highest temperature is three days; high temperature composting black and odor, fertile soil engineering to do demonstration; July rainy season is good, and autumn harvest is more money.

1. Scientific, timely fertilizer

In the jointing stage of maize, combined with rainfall and irrigation, the topdressing fertilizer should be applied in time. The attacking and panicle fertilizer can be promoted from the jointing to the end of the booting stage, which can promote the development of ear and florets, and increase the number of solid grains. The nitrogen fertilizer should be mainly used. The amount of application in the mu is generally 7-12 kg. The large trumpet period is about 10-15 kg of urea.

2. Reasonable watering, timely irrigation and drainage

When corn enters the big bell mouth period, it is sensitive to moisture. Where there are irrigation conditions, it should be timely watered and drought-resistant to prevent "card neck drought". In case of rainstorms, it is necessary to drain the water in time, especially during the grouting, it is necessary to pay attention to flood control and drainage, so as to prevent the premature aging of the rotten roots from affecting the yield. In the corn field, the amount of irrigation water in the jointing stage is 50-60 tons, and the volume of the large-bell period is 60-70 tons. The corn in this period is extremely sensitive to the water requirement and cannot be dehydrated.

3. Prevent lodging, control

When the corn leaves grow to 9-12 pieces, they are sprayed with corn chlormequat to prevent the corn from growing and controlling the corn plant height. Thereby promoting the plant leaves strong, large ears, more grains, and effectively increase the yield of corn. According to the growth of the field, in order to prevent the lodging of corn, promote robustness, timely and rational use of chlormequat, strong and healthy, generally use 20-30 ml of chlormequat or health, and spray 30 kg of water.

4. Cultivate the soil and remove the weeds

Reasonable cultivating can not only effectively remove weeds, but also increase the ground temperature and promote plant growth. The cultivating should not be too deep, 4.5-6 cm is appropriate, so as to avoid root damage. It is necessary to cultivate the soil in time to thicken the soil layer at the root of the corn plant to form a high ridge of about 20 cm to prevent the corn from falling due to wind and rain. Chemical weeding can be used to remove weeds. When spraying, the nozzle should be equipped with a protective cover to prevent the liquid from drifting and damage the corn leaves and surrounding crops.

5. Pest control

In this period, we must pay attention to the prevention and control of corn ear rot, tumor smut, corn borer, red spider, aphid and other pests and diseases.

Fourth, August farming. arrangement

August is the tufting and flowering period of summer maize. The focus of cultivation management is to ensure that the group is reasonable and pollination is sufficient, and the leaves are stalked into large ears, which is the basis for the large grains of the ear.

The main solar terms: Li Qiu and the summer.

Farming proverb: corn pollination in the autumn, with water to adjust the fertilizer to ensure a good harvest; after the heat, the flowers are bolled, and the control of the insects will stop.

Watering and drought prevention

From the male to the silking stage, the water consumption is large, and the response to drought stress is also the most sensitive. It is the “critical period” of water in the lifetime of corn, accounting for 30%-35% of the total water consumption in a lifetime. Drought and water shortage will cause different The degree of production reduction, or even the failure, seriously affects production. When the relative water content of the soil is less than 70%, it is necessary to water it in time to avoid the drought and reduce production.

2. Appropriately apply for flower fertilizer

The fertilizer applied during the tasseling to silking is called flower granule fertilizer. The main function is to promote grain filling, prevent premature senescence of the plant and increase 1000-grain weight. It is advisable to use quick-acting nitrogen fertilizer for flower fertilizer, and the amount of fertilizer should not be too much. Generally, 7.5-10 kg of urea can be applied per acre, and it can be applied in the deep side of the corn or combined with irrigation. Flower grain fertilizer is mainly suitable for high-yield fields and high-density fields.

3. Strengthen the cultivation of cultivating soil

Interplanting can improve soil permeability and fertilizer supply, promote root development, and remove weeds. Soil cultivation can increase the formation of corn roots. The cultivating and cultivating soil can enhance the lodging resistance of the corn. Due to the windy winds in the summer, it often causes the corn to fall. Therefore, it is necessary to cultivate the soil in time after the corn is topdressed to prevent the occurrence of lodging.

4. Pest control

The flower granule stage is a key period for the vigorous growth of the plant and the formation of grain yield. This period is the epidemic period of various leaf spot diseases and the manifestation of various diseases such as viral diseases, mad top diseases, tumor smut, stem rot and so on. The period is also the peak period of the pests of the ear. The ear stage is the prosperous period of diseases such as smut, top rot, leaf spot, brown spot, corn borer, corn borer, peach aphid, red spider and cotton bollworm.

May and September farming arrangements

September is the maturity stage of corn filling. The focus of cultivation management is to increase the seed setting rate, prevent premature aging and increase grain weight, and harvest at a suitable time.

Main solar terms: white dew and autumnal.

Farming proverb: The milk line disappeared and the corn was cooked, and the harvest was timely.

1. Adding "graining fertilizer"

"Ploughing fertilizer" should not be applied too much, otherwise it will cause corn to be late and ripe. If the ground force is good, the bottom is fat, and the plant grows normally, it is generally not applicable. If the soil is thin and the bottom fertilizer is small, the plant is yellow and has a performance of de-fertilization. 4-5 kg ​​of ammonium sulfate can be applied per mu. The high-yielding summer maize requires a large amount of fertilizer in the late growth stage, and the plots that lack the fertilizer during the filling stage can also be quickly replenished by the method of foliar topdressing. Spraying with 1% - 2% urea solution, 3% - 5% calcium perphosphate extract or 0.1% - 0.2% potassium dihydrogen phosphate solution during grouting, spraying time is best after 4 pm It can extend the functional period of the leaf and increase the grain weight.

2. Timely irrigation

Corn filling period is the second peak period of corn growth and water requirement. The number of green leaves in the late corn is slowed down, the weight of seeds is increased, and the yield increase effect is remarkable. Watering in the corn filling period can increase the seed setting rate of corn, promote nutrient transfer, ensure grain fullness, and improve yield and quality. The timely irrigation of corn during grain filling can increase corn yield by about 20%. In the event of drought during this period, irrigation must be carried out in time to ensure high yield and stable yield of corn.

3. Prevention of pests and diseases

Mainly control corn borer, stem base rot, aphids, red spiders, three generations of corn borer, white star flower golden tortoise and so on.

4. Timely harvest

When the summer corn kernel milk line disappears, it can be harvested, and it is appropriate to receive late harvesting without delay.

The above is the summer corn farming management calendar, the need for food growers friends can learn more, pay attention to Hui Nong network in addition to summer corn planting, other content also.

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