What are the planting requirements for planting corn and want to choose densely planted varieties?

When the density increases, with the appropriate planting method, it can play a more important role in increasing the yield of dense planting.

1) Equal row spacing planting row spacing is generally 60 73 cm, plant spacing varies with density, which is characterized by the uniform distribution of leaves and roots before plant tasseling, and can use nutrients and sunlight: it is convenient for sowing, seedling, cultivating, weeding and fertilization and other operations to carry out smoothly, but when the fertilizer and water density is large, the inter-row canopy and poor light conditions are in the late growth stage, and the individual contradictions in the group are sharp, which affects the yield increase.

2) Wide and narrow rows are planted, also known as large and small ridges, with large rows of 83 100 cm and narrow rows of 33 50 cm, and the plant spacing is determined according to density. It is characterized by uneven distribution of plants in the field, and poor utilization of light energy and soil fertility in the early growth stage, but it can regulate the contradiction between individuals and groups in the later stage of maize. Under the condition of high density and high fertilizer water, due to the widening of the large rows, it is conducive to ventilation and light transmission in the middle and late stages.

3) The intercropping of the strip was dominated by maize (medium and upper fertility), maize 4 6 rows, soybean 2 4 rows, soybean mainly (medium and lower fertility), soybean 4 6 rows, maize 2 4 rows.

When planting, it is necessary to choose land with fertile soil, to ensure the moisture of the soil, and to remove weeds in the field in time during the planting process to prevent competition with corn for fertilizer.

Fertilization: apply enough seed (bottom) fertilizer, top dressing in the big bell mouth period, more farm fertilizer can be applied if possible, and the domestic slow-release fertilizer should pay attention to top dressing, because domestic slow-release fertilizer may not meet the needs of ear production.

Choose varieties that are suitable for the local planting density, and the more permeable the sandy soil, the denser the corn can be. Those who sow early can be planted densely, and those who sow late should be sparsely planted.

Choose the kind of high-yielding variety so that the corn cob that grows will be full of grains. When planting, the plants should not be so dense, so that you can avoid two adjacent plants competing for nutrients.

Corn is an important food crop in China. Its sown area is second only to rice and wheat. Due to its advantages such as high yield and strong disease resistance, it is well received by farmers.

However, due to improper variety selection, improper sowing methods, improper field management and other reasons, the high and stable yield is greatly affected. Therefore, the use of high-yielding and high-quality cultivation techniques can not only ensure the high yield and value-added of corn, but also ensure "food security". In view of this, this paper summarizes and analyzes the key points of high-yield and high-quality maize cultivation technology based on actual cultivation experience, which is for reference only.

One, planted in wide and narrow rows.

Wide and narrow row sowing is a product of the rapid development of agriculture. This method of cultivation promotes photosynthesis of corn plants and maximizes the absorption of nutrients from sunlight.

Second, equidistant planting.

Corn takes 3 months from planting to maturity. In general, the seeds are sown in planting pits, with an average of 3 corn seeds per pit. When the corn seedlings grow to about 2 3 cm, compare some high-density corn seedlings.

Remove the weak corn seedlings and leave the well-developed corn seedlings. Under normal circumstances, corn has certain requirements for density, but in fact, it is difficult to have the same density between corn seedlings. Therefore, it is difficult to avoid some effects on light and ventilation.

Third, choose high-quality varieties and control the temperature reasonably.

In high-yield and high-quality cultivation technology, seed selection is the key link, and seed quality is the decisive factor in determining maize yield. Therefore, the best varieties should be chosen. The specific selection criteria are:

1) Resistance to pests and diseases, lodging resistance; Compactness tolerance Early maturity and high drought resistance. At the same time, the choice of seeds should be taken into account the local planting environment. Different qualities have different requirements for topography, soil quality, soil fertility, etc., different requirements for planting density, heat, fertility, moisture, and different resistance and adaptability.

According to the characteristics of varieties, differentiated treatment should be carried out, and supporting cultivation measures should be adopted to promote the integration of high-quality varieties and high-quality cultivation technologies to achieve the purpose of increasing yield. In addition, due to the high requirements of corn for growth temperature, corn flowering, pollination, ear setting, picking, etc. all need suitable temperatures, so temperature control should be strengthened.

Large-scale planting of corn in agriculture has these sowing methods: choose good varieties, you can use a reasonable sowing of one hole and two plants, and the yield is higher; The method of open field planting mainly includes Qilong ready to plant, before sowing, artificial or mechanical dragon riding height of about 25 cm, ridge width of 15 to 20 cm, ridge spacing of about 30 cm, sowing, planting on the back of the dragon, in recent years, more big dragon double description for the area of greater rain, Qilong planting is a good method, this method is mainly concentrated in the northeast region, corn is cold-resistant, not waterlogging resistant crop growth, need a certain amount of water, but too much soil moisture, but not good.

Direct seeding: Most areas of corn planting are planted in direct seeding, and direct seeding can be divided into open field planting and film mulching planting. It can also be planted with seedlings, which is very convenient.

Sow by machine, choose the right variety to sow seeds, treat the seeds, pay attention to the condition of the soil, be sure to rotate, pay attention to the situation of composting, pay attention to watering, pay attention to fertilization.

Planting can be carried out by machinery, equidistant sowing can be carried out, wide and narrow row sowing can be carried out, sowing of high-quality varieties can be selected, and sowing of temperature can be selected.

Summary. Hello, you can go to the Internet to buy corn seeds, you can also go to your crop market to see, high-yield corn seed brands are Jingke 968, Youdi 919, Xianyu 335, Zhengdan 958, Lidan 5, Denghai 605, Liangyu 99, Demeiya 1, Dongdan 1331 and so on. Of course, there are also high-quality high-yield corn varieties such as Demeiya No. 3, Yufeng 303, Zhongkeyu 505, Weike 702, Decca 653, Dafeng 30, Zhongdi 9988 and so on.

I hope it can help you, <>

Hello, you can go to the Internet to buy corn seeds, you can also go to your Songhan Ant crop market to see, high-yield corn seed brands are Jingke 968, Youdi 919, Xianyu 335, Zhengdan 958, Lidan 5, Denghai 605, Liangyu 99, Demeiya No. 1, Dongdan Yebu 1331 and so on. Of course, there are also high-quality high-yield corn varieties such as Demeiya No. 3, Yufeng 303, Zhongkeyu 505, Weike 702, Decca 653, Dafeng 30, Zhongdi 9988 and so on. I hope it can help you

I want to buy corn seeds that are planted densely, and the row spacing is less, and the plant spacing is how many trees are planted in one acre.

Hello, it is recommended that corn plant spacing is 7 inches, and row spacing is 8 inches. The row spacing for corn planting is generally 50-60 cm, the plant spacing for spring sowing is 33-40 cm, and the spacing for summer sowing corn is 25-33 cm. The planting density of corn is generally 30 cm with a plant spacing of 50 to 60 cm and a row spacing of 3000 to 4000 plants.

Generally, the row spacing of the old dust planting method is 65 cm, and the plant spacing is about 25 cm. It is recommended that you choose the right density according to the brand of corn Daxu. I hope it can help you to imitate Zen Oh <>

China's annual consumption of corn in about 2.7 million tons, corn in the south of our country, the north of the planting area is large, the scope is wide, the main planting area is divided into five characteristic ecological regions, the northern spring sowing corn area, the Huanghuaihai summer sowing corn area, the southwest mountainous corn area of the largest corn cob weight [dry corn cob weight 1 catty], all of a sudden sensation in the whole village, half of the village 50% of the farmers have booked this corn variety. Corn sown on fertile soil, with equal fertilization, no matter what variety is sown, grows better than corn sown on unfertile soil. Corn has thick stalks, hypertrophied leaves, fast growth, large and long ears (cobs), and high yields.

Crops a branch of flowers, all rely on fertilizer to be in charge, do not apply enough fertilizer, want to high yield, that is impossible, now the crops really rely on fertilizer, top dressing more and less, the growth of crops is completely different, densely planted corn must be more fertilizer, to ensure that the nutrition is satisfied, in order to have a bumper harvest. But crops need space to grow on the ground, and there is enough space to receive sunlight for photosynthesis, which is called fighting for heaven and earth. Yield, on the one hand, to increase and stabilize the weight per panicle, on the other hand, to increase the number of plants, increasing the density is the most direct and effective measure to increase the yield.

<>On the other hand, if the land is relatively poor and the water conservancy conditions are poor, the appropriate sparse planting is more stable. There are also according to different corn varieties, the amount of sowing per mu to be planted, some are suitable for dense planting, and some are suitable for sparse planting and large ears, so we must be flexible and master. The plant spacing is generally about 25 cm.

All aspects of high corn yield are important. Fertilizing and watering is also a top priority. You also have to have a good relationship with God.

Floods and continuous rain are the most difficult of the disaster. Farmers have a good harvest and risks coexist. It can be sown in both summer seasons, spring sowing on April 5 before and after Qingming seedlings transplanting, summer sowing rape harvest in mid-May, wheat harvest in early June can be sown.

Select Medium Dense. Because in order to get a high yield of corn, it is necessary to allow the corn to absorb the full range of nutrients. Medium density is the best choice.

Medium density. In this way, the nutrients in the soil are better absorbed, and the fruit-bearing rate can be increased a lot, and dense planting cannot achieve this effect.

Choose medium-dense planting. Because the planting density of corn is too large, there are two disadvantages that cannot be ignored, one is that the absorption of nutrients by the roots becomes poor, resulting in the growth of some plants; Second, the leaves cover each other, and the pollen is not easy to fall on the female spike, resulting in the inability to fertilize and set fruit normally, which not only causes baldness and heavier, but also easily leads to the phenomenon of lack of grain or multiple spikes in the female spike.

Planting corn to high yield, excellent quality, inseparable from high-yield corn varieties, now corn seeds are hybrid corn seeds, hybrid corn seeds have these characteristics, it is more conducive to high yield, when choosing corn varieties keep in mind, carefully distinguish not to suffer, choose the following corn seeds, pay attention to the following four points, more conducive to high yield.

Corn varieties every year are excellent varieties occurrence, research and development of corn varieties of agricultural technicians, has been diligent scientific research, although the excellent varieties are varied, but for everyone planters, in the absence of an in-depth understanding of the excellent varieties, the most reliable is to select suitable for the local, through the national examination, the provincial examination of corn varieties is more reliable.

Approved varieties that have been planted locally for more than three years are challenging in terms of high quality and high yield, resistance to diseases and insects, lodging resistance, etc., and the first thing to look at is the approval serial number on the outer packaging box of corn, you can distinguish that there is no approved corn variety, if you are very mastered, you should generally choose carefully.

The large ears of corn can grow more grains, more grains, 1,000 grains, plus 1 mu of large number of ears, to form more production, compact corn is more resistant to dense planting than loose corn, generally now use mechanical equipment to plant, mechanical equipment obtained, like the previous manpower, and then carry out seedlings, sparse seedlings are very few.

After a planting, as long as it is a continuous ridge, the plant spacing is dense and there are very few people to carry out manpower seedlings, which requires the corn variety to be compact, the corn cob is large, the ear position is low, the stalk is not empty, the corn straw is thick, the lodging resistance is strong, and the high yield potential of the corn variety of 5000 plants in 1 mu is higher than that of the corn variety of 3000 plants in 1 acre.

The production of corn is related to the 1000-grain weight, the fuller the corn kernel, the larger the grain, the heavier the 1000-grain weight, and the corn kernel with long tooth shape is generally heavier than the corn variety with small shaft fine sand. Maize varieties with long ears and sand have higher yield and development potential.

Disease resistance and lodging resistance is strong, the growth of robust corn varieties is the main reference index, corn must have a high accumulated temperature, therefore, must be warmer climate, and summer happens to be high temperature, suitable for corn growth season, in this season there are more wind and rain, corn growth in the second half of the seedling fall, corn will be damaged, broken roots absorb nutrients sharply, empty seeds, production can not be raised.

If you encounter a day with more rainy days in a row, the leaves are also susceptible to rust, the age of rust can lead to a yield limit of 10 20%, and the stem rot of corn is very easy to cause a large area of corn seedlings, and the situation is serious and leads to a reduction in corn yield by more than 50%.

Corn size spot disease has always been an important disease that harms corn, which can harm the leaves, leaf sheaths, ears, grains, etc. of corn, and can cause a reduction of about 50% of corn yield. Therefore, it is more conducive to increasing maize yield by selecting live straw mature maize varieties with strong comprehensive disease resistance.

1.The most reliable is to choose the right local, through the national examination, the provincial examination of corn varieties are more reliable, in the local planting for more than three years of approved varieties, in high quality and high yield, disease and insect resistance, lodging resistance, etc., is tested. 2. The large plant type is compact and resistant to dense planting, and the large ears of corn can produce more grains, more grains, 1000 grains, and more ears per mu, which constitutes more yield.