What is the purpose of soil loosening and weeding in the process of floriculture

In the process of flower cultivation, the main purposes of soil loosening and weeding are as follows:

1.Loosening soil: Mainly to improve the air permeability of the soil to promote the respiration and growth of the root system.

By loosening the soil, the soil can become looser, increase the air content in the soil, help the roots absorb water and nutrients, and promote their growth and development. In addition, loosening soil can also reduce water evaporation, avoid soil compaction, and further improve soil water retention and air permeability.

2.Weeding: Mainly to avoid weeds competing with flowers for nutrients, but also to improve light.

If there are too many weeds, they will compete with the flowers for nutrients and affect the normal growth of the flowers. By weeding, these competitors can be eliminated and a better environment for flowers to grow. In addition, weeding can also help improve the cleanliness of the site and prevent overgrowth of weeds from shading flowers and affecting light.

In conclusion, soil loosening and weeding are very important management measures in floriculture, which play an important role in promoting the growth and development of flowers.

Loosening soil is to improve the air permeability of the soil, reduce the evaporation of water, and avoid soil compaction; Weeding is done to prevent weeds from competing with flowers for nutrients and to improve light.

1.Loosening the soil for flowers can be done in the spring, when the temperature will gradually start to rise, and the plants will enter the growth period from dormancy, which will allow the flowers to grow more robustly.

2.The purpose of loosening the soil is to make the soil more breathable, otherwise it will cause the roots to rot due to poor breathing.

3.Care should be taken when loosening the soil, try not to harm the root system of the plant, and should be handled with care.

Principle: loose soil combined with weeding, weeding should be in line with the principle of "early, small, except".

Function: Timely cultivation and weeding can prevent weed breeding and soil compaction, and increase soil air permeability.

Weeding and loosening soil is the basic measure to tend young forests and ensure the rapid growth of forest trees. This work must be carried out urgently from the first year of afforestation. There is still a lot of knowledge about weeding and loosening soil, and it is wrong to think that the simple understanding of weeding and loosening soil is wrong.

The main purpose of weeding is to eliminate the competition of weed roots for young tree roots in the absorption of nutrients and water;

At the same time, it also eliminates the shading effect of the above-ground parts of weeds on the young trees. The roots of some weeds also secrete toxic substances that are harmful to trees, making them grow poorly.

Significance: In the process of seedling growth and development, due to rainfall and irrigation, the soil is compacted, the aeration is poor, the root system is not well developed, and weeds breed, and the seedlings compete for glory and fertilizer.

Loosening soil can loosen the soil, increase the oxygen in the soil crevices, facilitate the respiration of the roots, and promote the growth of the roots

So the answer is: Breathe brother.

First of all, loosening soil loosens the soil, dredges the air, and raises the ground temperature. At the same time, it is also conducive to the activity of soil microorganisms, promotes the decomposition of organic matter, increases the ability of soil nutrients, and improves nutritional conditions.

Secondly, loosening soil can regulate soil moisture, protect moisture and prevent drought. After loosening the soil, it can break the soil compaction, cut off the capillary, prevent the evaporation of water below the soil layer, and achieve the effect of water storage and moisture conservation. When there is too much water, it can evaporate the soil water, so that the plant can grow and develop well.

What's more important is to avoid soil spoilage!

Answer D analysis: The knowledge point examined in this question is the application of plant respiration in production When the solution is solved, you can start from the aspect of the respiration characteristics of roots

Answer: The roots of plants breathe oxygen in the air, and often loosen the soil, which can make the soil loose, and the air in the soil crevices is sufficient, which is conducive to the respiration of the roots and promotes the growth of the roots If the soil is compacted, the air in the soil is reduced, which inhibits the respiration of the roots and also inhibits the growth of the roots

Selection: D Comment: The key to answering such questions is to understand that the root breathes oxygen in the air

The roots of plants breathe the oxygen in the air, and often loosen the soil, which can loosen the soil, increase the air in the soil crevices, which is conducive to the respiration of the roots and promote the growth of the roots After the farmland is flooded, the water squeezes out the air in the soil crevices, so that the oxygen in the soil is too little, and the root hairs cannot breathe, resulting in root rot; Therefore, after the farmland is flooded, it must be drained in time, so that the roots of the plant can get enough oxygen to maintain the normal respiration of the roots, so the answer is:

The main function of timely soil loosening is to make the soil out of a loose state, prevent soil compaction, increase the air permeability and water permeability of the soil, and allow air, water or nutrients to be better absorbed by plants.

The roots of the plant breathe the oxygen in the air Frequent loosening of the soil can loosen the soil, and the air in the soil crevices increases, which is conducive to the respiration of the roots and promotes the growth of the roots The soil is compacted, and the oxygen in the crevices is reduced, which hinders the respiration of the roots, thus affecting the growth of the roots, and also affecting the absorption function of the roots, which is not conducive to the growth of plants

So the answer is: it is conducive to the respiration of the roots.