When planting corn, dense high yield? Or is it thin and high yielding?

According to the climatic conditions, soil fertility, variety characteristics, planting methods and other actual conditions, to achieve reasonable dense planting, so that the three major elements of corn yield, the number of ears, the number of grains per ear, and the weight of 1,000 grains are coordinated with each other, giving full play to the advantages of the group, sparsely planting large stick varieties, plant spacing 33 cm (leaving seedlings one foot away), mu density of 3368 plants, generally a single spike weighs about 1 catty, and the yield of fresh sticks per mu is about 3000 catties (one catty of sales in the field), and a mu is discounted about 1500 yuan.

The main basis for determining the spacing of corn plants is the size of the row spacing. If the row spacing is large, the plant spacing should be denser; If the row spacing is small, the plant spacing should be sparse. In the cultivation of crops, this is called "wide and narrow rows".

If the row spacing is very dense, the plant spacing should not be too dense, and it should be thinner in order to have high yield. The row spacing is sparse, and the plant spacing is also sparse, and the yield cannot be high; The row spacing is dense, and the plant spacing is also dense, which will reduce the yield. Proper row spacing and plant spacing can achieve high yields.

Dense planting can achieve high yield, but the premise of excellent varieties is the most important link, without good seeds, there will be no good crops, let alone high yield. Under the premise that the yield of corn per plant is basically stable, the more plants per mu, the higher the yield, because corn is not like wheat and rice, which will produce tillers, and a corn will bear a cob. Corn is a tall plant, its growth is very fierce, can reach a height of about one zhang, which is the highest in terms of planting farmers, its growth and development is also very strong, its fertilizer demand is more than other farmers, this is the situation that corn needs to be mastered.

Under normal circumstances, the adjustment effect of the three on the yield from large to small is the number of grains per ear, the number of ears per mu, and the grain weight, which can be said that the three elements of corn yield are the basis, the number of grains is the key, and the grain weight is the guarantee. The yield of corn is not determined by the density of corn plant spacing, compact corn should be dense, and loose corn should be thin. Only with reasonable cultivation density and sufficient fertilizer can corn achieve high yields.

In addition, it should be noted that it is important not to blindly follow the advice of seed dealers, as there are many traders who strive to promote dense planting and high yields for the purpose of profit.

It is better to plant corn a little thinner, the thinner it is, then their nutrition can be well distributed, in this case, it can create a good kind of high yield, and then the corn income will be very high.

Planting corn is too dense to achieve high yields and will affect the quality of corn because the distance between corn and corn is too small, blocking the sun. Planting corn thinner will not only make the corn of high quality, but also allow for full photosynthesis and high yield.

When planting corn, you need to plant it thinner, the growth of corn needs a lot of sufficient sunlight, if you plant corn too densely, it will lead to a lack of sunlight in each corn and cause low yield, so you should plant corn "thinly".

Traditionally, corn can only be densely populated under high fertilizer and water conditions. Some typical cases of high-yield research fields in China are basically high-density and high-fertilizer water. Taking summer maize planting in Shandong Province as an example, the yield per mu is 1400 1600 catties, and 36 44 catties of pure nitrogen, 6 16 catties of pure phosphorus, and 12 20 catties of pure potassium need to be applied.

To achieve this target yield, the average mu of pure nitrogen is about 34 catties, pure phosphorus 6 catties, and pure potassium 13 catties.

In maize cultivation, the reduction of plant spacing due to over-dense planting will reduce the dry matter of the upper part of the plant and the dry matter of the root system, which will induce the hidden danger of lodging. Summer maize varieties are mainly recommended in the markets of central and southern Hebei and the Huanghuai River Basin, and the planting form is best to adopt the method of "reducing the row spacing and expanding the plant spacing", and the "958 type" spikelet variety is changed to 50 33 cm (or 55 30 cm), which can greatly improve the lodging resistance and high yield and stable yield. It can also be planted with large and small ridges, with a large row spacing of 70 cm and a small row spacing of 40 cm, and the plant spacing is determined according to the specific seedling density.

Different varieties have their own suitable densities, sparsely planted large spike varieties are generally 3000 3500 mu, medium and large spike varieties are about 3700 mu, and compact varieties are generally about 4000 mu.

<> Is the plant spacing of corn dense for high yield or thin for high yield? Why? Corn plant spacing is the highest yield of reasonable dense planting.

Corn is divided into compact corn and flat corn, compact corn plant type, leaf upstroke, small footprint, suitable for dense planting, 4500 plants per mu is the most suitable. Flattened corn plant type is loose, the leaves are flat, the area is large, suitable for sparse planting, and 3500 plants per mu are the most suitable. The main varieties of compact corn are Zhengdan 958, Denghai 605, Denghai 618 and so on.

The main flat corn variety is Linong 386. This issue should be considered in combination with many factors. For example, factors such as variety characteristics, soil fertility conditions, local water conservancy conditions, and climatic conditions have a certain impact on the target yield.

The summer-sown maize in the Huang-Huai-Hai Plain is taken as an example.

In terms of variety characteristics, generally the varieties with up-punch leaves were more suitable for dense planting, and the varieties with flat leaves were more suitable for sparse planting. Varieties with small spikelets were more suitable for dense planting, and varieties with large spikelets were more suitable for sparse planting. Varieties with short plants are more suitable for dense planting, and varieties with tall plants are more suitable for sparse planting. Varieties with hard stems and strong lodging resistance were more suitable for dense planting, while varieties with poor lodging resistance were more suitable for sparse planting. Varieties with high photosynthetic utilization efficiency are more suitable for dense planting, and varieties with low photosynthetic utilization efficiency are more suitable for sparse planting. In terms of soil conditions, plots with thin soil and low organic matter content are more suitable for dense planting, and the yield is guaranteed by density. Sandy loam soil with poor fertilizer and water retention capacity is more suitable for dense planting, and small spikelet varieties are selected to ensure full grains, and loam soil blocks with strong fertilizer and water retention capacity are more suitable for sparse planting, so as to increase the number of grains per spike and the proportion of grains to promote yield, etc.

As far as water conservancy conditions are concerned, the water-irrigated fields with sufficient water source guarantee and convenient drainage and irrigation can be moderately densely planted, while the dry fields without water source guarantee are suitable for sparse planting to ensure normal maturity. Of course, this is only a general situation and should not be generalized. In addition to the above conditions before selection, it is necessary to carefully read the instructions on the packaging bag to find out the characteristics of the varieties and determine whether they meet their own requirements to ensure the target yield.

Another important thing to note is not to blindly follow the advice of seed dealers.

It will not be high-yielding, and only reasonable dense planting can be high-yielding. If the plant spacing is too dense, the number of grains per ear of corn will be reduced, and if the plant spacing is too thin, the total number of ears will be too small, which will lead to too little yield.

In fact, if it is too dense, the nutrients of corn will not be well released and absorbed, and in this case, the corn will have a low yield.

When planting corn, the plant spacing of corn should be reasonably arranged, and the corn plant spacing is too dense and will cause the size of corn to become smaller. Planting too wide spacing can also lead to wasted land.

The planting density of maize is related to maize varieties, soil environment and geographical location, but maize can generally be planted densely, which is conducive to increasing yield. This is because maize yield is composed of ears per mu, grains per ear and grain weight, and the yield is highest when the product of these three parameters is maximized. The reason why corn can be reasonably densely planted to increase yield is that it properly solves the contradiction between the three factors of many ears, large ears and grain weight.

Pest control is carried out before sowing, and some pest control can use insecticides such as imidacloprid and chlorothiazide. At the same time, it is necessary to weed in time to reduce the number of pests. When insect infestations occur, insecticides should also be sprayed in time.

When spraying, try to spray the entire paddy field. Lodging-resistant corn lodging is also one of the factors affecting high yield, and the yield and quality are reduced, and it is not easy to harvest.

When selecting corn varieties, we pursue stable harvests with varieties that are suitable for local cultivation and have high resistance. The increase in lodging resistance of pests and diseases is the basis for high yield of maize. Summer corn should be sown quickly, the temperature is not high, and the environment is less rainy, which is suitable for squatting seedlings.

During the growth period, plots with a tendency to lodge must be controlled after jointing. In fact, no matter which corn variety, whether it is a thin point or a dense point, it is not determined by us, but by the variety itself.

When we buy varieties, the packaging of each variety has instructions that clearly state what the recommended planting density is. If you don't understand, please take a look at this. At this time, the recommended planting density on some packages is 4000 4500 mu, is it 4000 or 4500 per mu?

This question can be determined from the fertility of the soil, management, variety, etc.

For example, if the soil is fertile, we can plant it appropriately close. Conversely, if the plot is not fertile (e.g. barren sandy land), it must be appropriately thinned. In addition, areas that are easy to water and fertilize sufficiently can be planted densely under such conditions, but areas that are inconvenient to water and fertilize less must be planted appropriately thin.

In the process of corn planting, the appropriate plant spacing should be controlled, if the planting is too thin, it will waste land, and if it is too dense, it will lead to slow growth of corn.

Corn should be planted relatively thinly; Because the planting density determines the growth of corn, if it is planted relatively densely, it may affect the light conditions of corn and affect the steam taste of corn.

For example, in the northwest region, due to the poor irrigation problem and the low precipitation price, the areas affected by the growth of corn mostly belong to the dry corn area, and the water conditions in this region are difficult to meet the growth needs of corn, so it is more suitable for sparse planting of corn to avoid the overall poor growth situation.