When planting potatoes, is it better to choose white film or black film?

Compared with white mulch, black mulch absorbs heat quickly, and of course, the ground temperature rises quickly. Therefore, if the black mulch film is used to cover, then after the potato seedlings emerge, it is necessary to take the method of artificial opening and ventilation in time due to the light transmittance of the black mulch.

Poor, sunlight.

It does not shine directly into the soil, so the ground temperature rises slowly, making it suitable for crops that do not require much light and temperature. For example, growing strawberries.

<> white mulch film has good light transmittance, suitable thickness, and aging resistance, has the effect of improving temperature and moisture retention on the middle layer of surface soil, and can increase the ground temperature after mulching about 3, which is conducive to promoting the early emergence of potatoes, especially for the potatoes sown in spring, after planting potatoes, cover a layer of special black film for potatoes on the ridge surface, and slightly press some soil around it. This can not only save labor, but also has the effect of heat preservation and moisturizing, and the seedlings should emerge 3 to 5 days earlier than conventional straw or white film mulching.

In our local area, black mulch film is generally used in winter, because black mulch has a better insulation effect and can effectively control soda.

Formed, the black mulch film can prevent the surface temperature from rising in warm winter conditions, which is not conducive to potato growth. During the emergence of potatoes, it can be said that the transparent mulch film is completely superior to the black mulch, during the emergence of the seedling, it may be necessary to pick the seedlings, the transparent mulch film is obvious, and the black mulch film is difficult to find, only rely on the plant spacing to judge whether the seedlings need to be buckled.

Potato peritoneum. There are two main forms, one is the pre-species peritoneum and the other is the post-species peritoneum. Regardless of whether it is peritoneum before planting or after planting, the potatoes planted with peritoneum return to seedlings quickly, and the potato seedlings grow robustly and the leaves are developed.

I have good light transmission, because in the clear day, sunlight can shine through the mulch film to the ground, and it is converted into heat energy and stored in the soil. In promoting early maturing cultivation, if the method of mulch film + small arch shed is used, or the sowing area is relatively small, it is advisable to choose the method of black film covering first and then perforating and sowing.

The main reasons for choosing black film for growing potatoes are: to increase the ground temperature and eliminate weeds. Raise ground temperature.

To plant potatoes, it is generally sown in the ground between the two solar terms of the beginning of spring and the rain. At this time, the weather is still very cold, the temperature is very low, the ground temperature is even lower, the ground temperature is below 5 during the day, and the potatoes do not germinate in the soil at all. In the past, transparent agricultural film was used, which had a good effect of heat preservation and moisturizing.

However, the inhibitory effect on weeds is not as good as that of black agricultural film. The black agricultural film absorbs sunlight and heat better than the transparent agricultural film, and the ground temperature is increased faster. This is the principle of using color to absorb heat.

That's why the transparent film was changed to a black film. Practice has proved that the potatoes planted at the same time, the potatoes covered with black agricultural film will increase the seedling emergence by more than ten days compared with those covered with transparent agricultural film.

The black film is better. Potatoes are enchanted when planted to reduce soil moisture evaporation. Reduced heat loss. The black film can better absorb heat and reduce heat dissipation.

I think it's better to choose a white film, because the white film will have a high temperature and will make the potato yield more productive.

Potatoes, which are more common in people's daily life, are because they contain dicalcium phosphate.

and glutamic acid, and rich in a variety of nutrients, such as zinc, potassium, iron, etc., and potatoes often contain protein closer to animal protein, often eat potatoes have the effect of stomach, regulation, spleen and stomach, and blood nourishment. Potatoes are planted in the countryside only after the spring is bright and the soil temperature rises above 18°C. Like our Jiaodong villages, the general planting time is around April.

However, due to the continuous improvement of cultivation technology, we have successively chosen the planting technology of sub-film planting potatoes, so that potatoes can be planted early, and at the same time, they can also be sold early to occupy the market initiative. The white transparent plastic film has good light transmittance, and the temperature is quickly raised during the day, even in rainy days, it can achieve a certain thermal insulation effect, and the black plastic film absorbs heat.

Extremely strong, the heat preservation effect at night is better than the white transparent agricultural mulch film, in fact, everyone grows potatoes generally in the vegetable greenhouse.

Or the outdoor ones should be planted after the spring equinox, and the temperature has already warmed up, so the advantages of gray-black plastic mulch film are not very great. The soil temperature difference of black mulch film is small, the air permeability of black mulch film is better than that of white mulch, the plants of black mulch film are not easy to age, and the soil temperature of black mulch film is high at night. The radiant heat rate of the white mulch film is 80% to 90%, which is close to the fully transparent agricultural mulch film, and the light transmittance is only 40%, which is aimed at weeds.

There is a certain antagonistic effect. It is mainly used for paving and mulching, which can deal with the problem of serious grass damage caused by fully transparent mulching film.

According to the difference of this kind of season, we often divide the production and manufacturing of potatoes into spring planting and autumn planting, because the spring ultra-low temperature is low, and the potato planting area is mostly in the drought and arid climate area, the irrigation standard is very poor, often because of the lack of water, resulting in uneven budding, and even the situation of dead seedlings and broken ridges, but with the development of agricultural and animal husbandry technology in recent years, marketing promotion.

The spring potato subfilm planting technology has effectively solved these points.

In the high temperature season (spring and summer), the black mulch film works well, and in the low temperature season (autumn and winter), the white mulch film works well. The white mulch film has a poor grass control effect, and the black mulch film has a good grass control effect. The white plastic film has high light transmittance, and the black plastic film has low light transmittance, and weeds need to grow in a visible light environment.

Therefore, the use of white plastic film with high light transmittance is far less effective in controlling weed growth in the field than the use of black plastic film with low light transmittance. This is also the reason why white mulch is not recommended, while black mulch is recommended during the high temperature and humidity seasons when weeds are easy to grow and grow.

When planting potatoes, should I use a white or black film? What is the reason? Black mulch is mostly suitable for growing potatoes, because potatoes are plots that prefer cool and humid climates and are not tolerant to weeds.

You can choose a white film, which can quickly increase the temperature and can also keep warm well.

Compared with white mulch, black mulch absorbs heat quickly, and of course, the ground temperature rises quickly. Therefore, if the black mulch film is used to cover, then after the potato seedlings emerge, it is necessary to take the method of artificial opening and ventilation in time, and the black mulch film can not directly penetrate the soil due to the poor light transmittance, so that the ground temperature rises slowly, and it is suitable for the use of crops with low requirements for light orange rock and temperature.

The white mulch film has good translucent pants, suitable thickness, and Wuling aging resistance, and has the effect of improving temperature and moisture retention on the middle layer of surface soil, and can increase the ground temperature after mulching about 3 Tangerine cavity, which is conducive to promoting the early emergence of potatoes

I think you should use a white film, because black has good heat absorption, which will cause the potato seedlings to die of heat.

Summary. Black film.

Is it better to plant white or black film on potatoes? Why?

Black film. In winter, black is generally used, because black mulch has a better thermal insulation effect and can effectively control the formation of soda.

The black film raises the ground temperature and eliminates weeds. Raise ground temperature.

The ground temperature is below 5, and the potatoes do not sprout at all in the soil. In the past, transparent agricultural film was used, which had a good effect of heat preservation and moisturizing. However, the inhibitory effect on weeds is not as good as that of black and distribution agricultural film.

The black film absorbs sunlight and heat better than the white film, and the speed of improving the temperature of the ground is faster. This is the principle of using color to absorb heat.

If you plant potatoes, it will be better to use black film; The yield of black film is relatively high because potatoes need enough light.

I think it's better to use black film, and the yield is relatively high, because it absorbs more heat and has a better thermal insulation effect.

Of course, it is better to rent the color of the white branches. It must be that the white hair length is higher, because the white membrane can better carry out photosynthesis and better retain water.

It is better to use black film, because the white film heats up relatively quickly, which can not prevent the growth of weeds, and the black film can reduce labor costs

Personally, I think it's better to use white film, because white film can not only keep warm, but also clearly see the growth of potatoes, and can find some problems in time.

White film, because you can see the inside through the outside, it's better.