As a grain, what are the precautions for growing conditions in corn?

We all know that corn is a crop with a relatively wide planting area in China. Corn is rich in nutrients and has a good taste, which is very popular with the public, so it has a broad sales market. Whether it is in the countryside of the south or the north, corn is a common crop, and today I am here to introduce some precautions for corn growth.

1.Temperature conditions.

Corn is a short-day crop that is thermophilic and requires higher temperatures throughout the growing season. Corn is suitable for growing in a warm environment. The optimal germination temperature of its seeds is about 28-35 degrees, and the suitable temperature for flowering is about 25-26 degrees.

When cultivating corn, the seeds need to be germinated to increase the germination rate. Hoist.

2.Lighting conditions.

When planting corn, the sunshine hours are less than 12 hours, and the maturity is early. If the light is too short, the growth rate of the plant will slow down, which will reduce the yield of corn. Corn should be planted on sunny soil to promote healthy growth.

3.Watering management.

Corn plants are higher and require more water, while corn plants are taller, have a larger leaf area, and have a stronger transpiration during the growth period, so when cultivating corn, if the water is insufficient, remember to water the plants to prevent the corn from drying up; When encountering heavy rain, remember to drain the stagnant water for the corn gutter.

4.Maintenance method:

During corn maintenance, it is necessary to provide well-decomposed organic fertilizer or chemical fertilizer in the process of plant growth to improve the growth rate of the plant, and in the corn fruiting period, potassium dihydrogen phosphate or superphosphate need to be sprayed to reduce the foliar senescence rate of the corn plant, thereby improving the yield of corn.

5.Soil requirements.

Corn has a well-developed root system, and the requirements for soil and soil improvement are not strict, but if you want to get a high yield, you still tend to plant on a variety of soils that require good soil aeration conditions, and when the oxygen content in the soil air is 10%, it is most suitable for corn root growth. During the planting process, it is necessary to remember to loosen the soil and weed to ensure the dominant population of corn, so as to achieve an increase in yield.

First of all, when planting, we must choose the soil with more fertile soil, and we must use farmhouse fertilizer when fertilizing, do not use the fertilizer bought outside, and often water the plants, but also to prevent the occurrence of pests and diseases, if there is a situation of small insects, then we must spray insecticides in time. I think that if we can do these things well, we will be able to grow corn very well.

The thing that needs to be paid attention to is to pay attention to the growing environment, the temperature of growth, the time of sunlight, the protection of the growth environment, and the prevention and control of corn pests.

When planting, we must pay attention to the density and spacing of planting, and then we should also water and fertilize in time to ensure sufficient light, prune branches and leaves regularly, spray some pesticides in time to avoid insect pests, strengthen the management of water and fertilizer, and do a good job of drainage and ventilation.

Be sure to clean up the insect infestation, be sure to clean up the stagnant water in time, do not let the sun shine directly, choose the right soil, and keep the temperature above 10.

1. Prevent corn from empty stalk Fertilization is very important for many crops, and corn is also, if the fertilizer is not provided enough, it will cause corn to have insufficient nutrients, and break the nutrient balance. For example, too much nitrogen fertilizer, phosphorus deficiency, potassium deficiency, etc. will lead to less corn cobs and empty stalks, which also seriously affects the yield of corn.

Prevention and control methods: first of all, the planting density can not be too dense or too thin, to ensure a permeability between corn plants, and then timely fertilization and watering, of course, the proportion of fertilizer also needs to be balanced.

2 to prevent corn lodging improper management of water and fertilizer, planting density is too large will cause the occurrence of corn lodging, from the planting situation in recent years, weather and climate factors are also one of the main reasons for the large area of corn lodging.

Prevention and control methods: Farmers can pay attention to deepening the tillage layer when planting, and then the density between corn plants should also be controlled, pay more attention to the weather forecast, and take measures to prevent waterlogging and drought in time.

It is necessary to choose plots with high soil fertility in order to lay a good foundation for a bumper harvest of corn. For corn to achieve high yields, variety is the key. There must also be high-yield cultivation techniques to control pests and diseases.

Ensure proper pollination and filling of corn to make the kernels fuller and ensure a good corn harvest.

It is necessary to choose the planting environment, adjust the planting time, the daily water and fertilizer management should be reasonable, and the prevention of diseases and pests should be in place.

Corn, an annual monoecious cross-pollinated plant, is an important crop and forage crop in China, and the world's most produced food crop. Corn cultivation belongs to traditional crop cultivation in rural areas, and most agricultural producers have their own set of methods and methods to ensure that the corn they grow is harvested. Apply plantar fertilizer, early application of green manure, heading fertilizer, heavy application of ear fertilizer, skillful application of grain fertilizer.

Fertilizers are a key energy feed for corn growth.

After all, the nutrient content of the soil itself is relatively limited, and it is necessary to continuously adjust and supplement the needs of nutrients according to the different growth and development links of corn. Reasonable fertilization. If corn wants to grow and develop, and grow fast and well, then fertilizer is essential.

However, at the level of fertilizing corn, we should remember to apply as little fertilizer as possible and apply more P and K fertilizer, which can effectively prevent corn from maturing late due to greed.

At the same time, if possible, you also need to remember to water frequently when the weather is dry. Before the jointing period, the water consumption of corn is not very large, as long as the land resources are not special drought, there is no need to deliberately irrigate, too much watering will make the corn rhizome shallow and very easy to fall seedlings. The increase in water use of maize is after gradual heading and up to booting.

After heading, the water consumption of maize gradually increases, and if there is a drought and a lack of water, the growth of maize will be hindered.

After entering the big bell stage to the ear grouting period, it is the period when the corn needs more water, and at this time, it is necessary to ensure that there is sufficient water supply to ensure that the corn can grow and develop normally and firmly. Common corn pests and diseases include powdery mildew, brown spot, corn borer, etc., and the occurrence of this pest and disease has been plaguing farmers. To prevent insect pests and diseases, it is necessary to prevent them before they occur and combine prevention and control.

Before planting corn, you can choose a film-coated corn seed to prevent pests and diseases.

You can use biological fertilizer, organic fertilizer, and well-rotted farm fertilizer, which can properly prevent pests and diseases, and you can also remove problematic plants in advance.

To fertilize more, water more, pay more attention to insect pests, before planting corn, you can choose a film coated corn seed to prevent pests and diseases, once found during the growth and development of corn pests and diseases must be sprayed.

It is necessary to fertilize on time, to choose the right variety for planting, pay attention to light, pay attention to the use of fertilizer, when planting corn, planting density is very important.

You can fertilize, you can water, pay attention to the light, so that you can better promote the growth of corn, planting corn needs to pay attention to the condition of the soil, be sure to pay attention to the surrounding temperature.

Water is the most important substance in the life activities of corn, and it is the basis of all physiological key rubbers. Water is closely related to organogenesis in maize. The soil surface is loose, the soil moisture is sufficient, which can promote the growth of the root system, the number of roots is large, and the soil layer is deep; If there is too much moisture on the soil surface and poor ventilation, it will inhibit the development of the root system, the number of roots is small, and the soil layer is shallow.

When there is too much water, the stems and leaves grow fast, the stems and leaves are delicate, the stems are long, the leaves are thin and easy to break, the toughness is poor, and it is easy to lodging. When drought occurs, it inhibits the normal growth of maize, resulting in shorter stalks, smaller leaves, low photosynthetic rates, and less dry matter accumulation. The water supply was suitable, the conductivity and photosynthetic properties of the plants were normal, and the growth and development rate was moderate, which was conducive to Zhengfan's high yield and lodging resistance.

<> water is an important factor affecting the number of grains per panicle and grain weight of maize. From 10 days before flowering to 15 days after flowering, the water requirement of maize is the second highest. At the flowering stage and milk maturity stage, the number of grains per panicle and grain weight decreased, and the number of stunted grains increased.

The lack of water at the milk ripening stage and the wax ripening stage is mainly to reduce the grain weight. Mineral nutrition is one of the main conditions for the normal growth and development of maize, which has a great impact on organ development and yield formation.

The dry matter weight of the roots of maize with N and P as seed fertilizer increased by 37% compared with the control. When the amount of nitrogen, phosphorus and potassium fertilizer is sufficient and the proportion is appropriate, the plant grows normally, thick and tough. When N or P is insufficient, the plant is dwarfed and the biological yield and seed yield are low.

When nitrogen and phosphorus are sufficient but potassium fertilizer is insufficient, the internodes at the base of the stem are easy to crack and break. The seeds germinated at 6 8 next to the manuscript bush, but the germination rate was slow, and the germination was faster at 10 12. In terms of production, the temperature of the 5 10 cm soil layer on the ground is generally stabilized at 10 12 as the temperature index for timely early sowing.

In general, the plant begins to expand its leaves when it grows to 6 8 cm, and the temperature reaches 18 when it begins to elongate. The stem nodes elongate rapidly at higher temperatures. At heading and flowering, the average daily temperature is 24 26.

When the temperature is higher than 32 and the relative humidity of the air is lower than 30%, the pollen will lose water and dry up, and the filaments will also wither, resulting in poor pollination and reduced yield. If the temperature is lower than 20 degrees, the anther depowdering is abnormal, which affects the normal pollination.

When planting corn, we must choose a soil with a relatively fertile and wide soil, and we must use farmhouse fertilizer when fertilizing, do not use fertilizer bought outside, and often water the plants in spring, and also prevent the occurrence of pests and diseases.

It is necessary to ensure the fertility of the soil, and it should also have good air permeability. It is necessary to ensure that the structure of the soil is good. It is also necessary to avoid stuffy lead and avoid excessive humidity in the environment. Top dressing should also be done regularly.

As long as it is not too dry or too wet and sensitive, there will be no harm, and the vitality of corn is still very tenacious.

<> seedlings make laughing period: After the seeds are sown, the seedlings break through the soil for a period of time, and the roots, leaves, and stem nodes of the seedlings begin to differentiate. Spike stage:

The male spikes begin to bloom after the plant is jointed, and it is necessary to quickly close the rows with hunger. Flowering stage: the plant begins to fully bloom and set fruit, and the main work during this period is weeding, watering, and fertilizing.

Maturity period: The corn kernels begin to ripen and be picked after the bracts are completely yellowed.