Modern biological research shows that the root system is not only an absorbing organ of water and nutrients, but also can feel the chemical signals produced by soil nutrient status and transmit these signals to the aboveground parts, thus controlling the physiological activities of aboveground organs, such as the opening and closing of stomata, the unfolding of leaves and the development of fruits.
Therefore, it is very important to establish and maintain a healthy root system for the normal development of aboveground stems, leaves and fruits. Although conventional fertilization measures can provide nutrients for plants, only roots know what nutrients are needed, how much they need, when they need them, and take the initiative to obtain them. It can be said that promoting the development of root system is the basis of efficient cultivation!
There are three main factors affecting root development:
1, soil physical factors:
Moisture, air, temperature and aggregate structure in soil are all physical factors affecting root growth. For example, soil temperature is a key factor in winter crop growth. When the temperature is too low, the physiological activities of roots will be weakened, and frostbite and death will occur in severe cases.
2. Soil nutrients:
The root system is fertile, so in fertile soil or fertilization conditions, the root system is developed, there are many capillary roots and the activity time is long. Organic fertilizer, nitrogen, phosphorus and potassium, calcium, magnesium, boron and manganese can all promote root growth.
3. Soil pH value:
In acidic soil, heavy metal elements and their organic complexes have inhibitory effects on roots; Too high soil pH will also directly inhibit the growth of root system.
Knowing the main factors that affect the growth of crop roots, how to suit the remedy to the case and take effective measures to establish and maintain a healthy environment for the growth of crop roots?
Chitosan oligosaccharide can fully activate rhizosphere state, dissolve nutrient molecules, quickly form soil solution, and make nitrogen, phosphorus, potassium and other nutrients fully and effectively absorbed by plants.
Chitosan oligosaccharide provides nutrition for soil beneficial bacteria such as actinomycetes, which can promote the reproduction of actinomycetes and induce them to produce chitosanase, thus inhibiting the growth and reproduction of soil pathogens; At the same time, due to the proliferation of actinomycetes, the soil micro-ecological environment and plant quality can be improved, thus achieving the purpose of increasing production. Using the antibacterial ability of chitosan oligosaccharide and its effect on improving soil, a liquid soil improver was synthesized from soil and chitosan oligosaccharide solution, which has appropriate stability and biodegradability. After degradation, it is a high-quality organic fertilizer that can be absorbed by crops. If sprayed on the soil surface, it can form a film and also has the function of preserving moisture. If pesticides or fertilizers are mixed into it, so that it can be mixed evenly, the effect of slow release can also be achieved.