What are the field management measures? Is plastic sheeting useful for field management?

Do you know what the common black plastic in the field is for? Why do farmers lay a layer of black plastic? What's good about that, you know? Let's take a look.

The silver-black plastic cloth is often seen in the fields. The fields are completely covered one by one to prevent weeds from spreading. This is a convenient and inexpensive method for farmers. At noon, the temperature of the plastic cloth was as high as 78 degrees Celsius. The airtight plastic cloth clung to the soil, which not only caused the plant roots to float, but also easily caused the fibrous roots to burn and the soil temperature to be too high.

Chen Hsing-tsung, curator of the Soil and Crop Doctor's Center, points out that moisture in the fields evaporates when heated, but because the plastic cloths block it, the moisture is concentrated under the plastic cloths, and fertilizer is carried upward in the process. "With moisture and fertilizer, plant roots don't want to take root, so they gather on the surface of the soil." When growing crops, you must drain the soil well, and allow water and oxygen to penetrate deep into the soil."You must make sure that there is not so much water on the surface of the soil, and there is water and oxygen in the deep layers." The root system runs with the water. As long as such an environment is operated, the root system naturally goes down.

Chen Hsing-tsung says that soil can be divided into clay and sandy soils. Clay soil is finer, so it tends to retain water and its temperature rises slowly. Sandy soil loses water easily, and it is easier to reach temperatures that harm crops than sunlight. The sandy soil, together with plastic sheeting, causes crops to become feverish and their roots and rhizosphere microorganisms to be damaged as soon as they are exposed to sun radiation and temperature rise. Crops wither and age easily.

Although plastic sheeting has many disadvantages, it is difficult for farmers to change their habits. Chen Hsing-tsung also suggests that at least plastic sheeting should be placed under plastic bottles, combined with foliar fertilization and manual weeding.

Now you see, there are both advantages and disadvantages to doing this, so you must use scientific methods.