When greenhouse vegetables are planted for more than 4 years, the degree of soil salt accumulation is heavy, which is extremely unfavorable to the growth of vegetables. Many greenhouse cucumbers have deteriorated soil properties, causing poor growth of cucumber roots, reduced resistance, and unbearable long time when cold air comes. Cold, resulting in reduced production. Therefore, cultivating a robust root system is a necessary means for vegetables to improve their stress resistance and to increase production. The key to determining the robustness of the roots and the resistance of the vegetables is the permeability of the soil. Only the soil has strong air permeability, oxygen is sufficient, the roots have sufficient respiration, and more energy is generated. The root absorption ability is strong enough to grow strong trees, and the stress resistance of vegetables can be increased and the yield can be increased. How to increase the permeability of the soil?
First, increasing organic fertilizers, returning straw, and increasing organic matter content in the soil are the fundamental measures for improving soil permeability. Soil organic matter is an indispensable main component of the formation of soil aggregates. Soil with high organic matter content, loose soil and good air permeability has the highest crop yield. Therefore, it is necessary to increase organic fertilizer and straw return to improve soil and increase soil permeability.
Second, change flood irrigation to drip irrigation and water it properly. Traditional furrow irrigation and flood irrigation have a strong effect on soil erosion and compaction, and the structure of the soil's granules is destroyed, which is not conducive to soil water and fertility conservation. After the greenhouse vegetables have grown up, they are covered with mulch. The difficulty of cultivating loose soil and the soil compaction cannot be broken. Drip irrigation is different from flood irrigation. It slowly infiltrates the soil and has little effect on soil destruction. The soil in drip-irrigated greenhouses is more loose and more breathable.
Again, biological bacterial fertilizers are reused to increase microbial activity. Due to the continuous cultivation for a long time, harmful microorganisms in the soil will be accumulated, and beneficial microorganisms will be reduced, and root diseases will easily occur so that the vegetables cannot grow normally. The accumulation of harmful microorganisms also has a greater impact on soil properties. Many beneficial microorganisms themselves have the effect of improving the soil and improving the permeability of the soil. While the beneficial microorganisms multiply, they can loosen the soil on the one hand, and on the other hand, when the nutrients are fixed to decompose the soil, some substances that promote root growth will also be produced. It is very beneficial to the growth of the root system. Therefore, the application of biological fertilizer must increase the amount of beneficial bacteria in the soil, so that beneficial microorganisms in the soil can regain their advantage. The increase of physiologically active substances and the application of organic fertilizers can promote the activity of microorganisms. As a result of microbial activity, in addition to increasing the mineral nutrients and humus in the soil, it can also produce a variety of vitamins, antibiotics, auxins, etc., which have the effect of promoting root development, stimulating crop growth, and enhancing disease resistance.
Another important function of amino acids is to provide energy to the human body. Normally, a healthy body on a general diet will use carbohydrates as its main fuel, but when the main source is depleted due to strenuous exercise, protein and amino acids can be used as a last resort. Amino acids also play an important role in food taste. Protein doesn't have much taste, but each amino acid has its own taste, and combining them is one of the important factors that define the taste of food
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