One: What is continuous cropping?
Crops of the same variety or family are planted on the same plot for three years or more, which is called "continuous cropping" in cultivation. One year is called new stubble, and two years is called welcoming stubble. Continuous cropping is an important reason for the weak growth potential, aggravated diseases, and decreased yield and quality of many crops.
Second, the reasons for continuous cropping obstacles
1, nutritional imbalance
Crops of the same species or family have a certain demand for certain nutrients. Plants don't like unnecessary elements and never absorb them. Unlike humans, even if they don't like it, they will eat it for health, which will lead to the lack of some elements in the soil and the excess of some elements, leading to nutritional imbalance.
2. Soil poisoning
On the one hand, the residues caused by the extensive use of herbicides and pesticides cause soil poisoning; On the other hand, the toxic accumulation of toxins secreted by crops in soil will reduce soil fertility, hinder crops from absorbing nutrients, and the root system is underdeveloped.
3. There are a lot of bacteria in the soil.
Crop seeds themselves carry harmful bacteria, which cannot be effectively decomposed and digested due to long-term accumulation and reproduction of continuous cropping, and the number of pathogenic bacteria in the soil accumulates for a long time.
4. Unbalanced fertilization
Because of long-term unscientific fertilization, soil hardening, acidification and salinization are serious. Excessive phosphate fertilizer will solidify in the soil with the metal ions in the soil, forming hardening; Excessive application of nitrogen fertilizer will cause excessive nitrogen to be oxidized into nitric acid, leading to soil acidification; Excessive application of chemical fertilizer at one time or long-term application of chemical fertilizer will lead to soil salinization.
Third, the performance of continuous cropping obstacles
1, the accumulation of soil toxins and bacteria will lead to the occurrence of soil-borne diseases, eventually leading to dead trees and rotten seedlings, and the survival rate is low.
2. The imbalance of nutrient elements will lead to poor growth and development of crops and affect the quality and yield of crops.
3. Unbalanced fertilization: hardening: soil aggregate structure is destroyed, poor permeability, underdeveloped crop roots, physiological obstacles and serious soil-borne diseases such as dead trees and rotten seedlings; Acidification: physiological diseases such as calcium, magnesium and boron deficiency. It will also limit the survival of nitrogen-fixing bacteria; Salinization: the root system is short and underdeveloped, the leaves are stiff, the plants are short, and even the water shortage causes death.
Four: prevention and control of continuous cropping obstacles
1, stubble rotation: Also known as crop rotation, it can effectively avoid continuous cropping obstacles, but its operation is troublesome, resulting in great changes in local planting structure and inconvenient management.
2. Grafting: It can effectively avoid the phenomenon of dead trees and rotten seedlings, but it is only resistant to continuous cropping and cannot solve continuous cropping, which is difficult to operate and has certain limitations. Some crops cannot be grafted, and the survival rate of grafting itself is also low.
3. Sterilization: In some places, especially in greenhouse areas, fungicides or closed sheds are used to kill bacteria in the soil, but this method can only kill bacteria in the surface layer, and the temperature of the bottom soil cannot reach, so it cannot be killed. Moreover, this method not only kills harmful bacteria, but also kills beneficial bacteria, which cannot solve the problem of soil poisoning.
4. Fertilization: Apply more organic fertilizer and biological bacterial fertilizer, but these live bacteria need harsh living conditions and are troublesome to use, which often can't give full play to the effect, and it is not conducive to long-term preservation and affects the sales time. It cannot solve the problem of soil poisoning. ?
Five: professional stubble resistance-10,000 mu of life? If you are afraid of multiple cropping, use it-10,000 mu.
First, product features:?
It is a special anti-continuous cropping soil remediation agent developed by China Academy of Agricultural Sciences, China Institute of Soil and China Institute of Bioengineering according to China's agricultural situation. Has applied for a national patent. This product is mainly produced with microbial metabolites, photosynthetic super carbon and melittin as the core technology, high-activity humic acid as the carrier and high-concentration double chelating technology. ?
? Wanmukang continuous cropping agent is produced with microbial metabolites, photosynthetic carbon and melittin as the core technology, high-activity humic acid as the carrier, and high-concentration double chelating technology to complex the most scarce elements of boron and zinc in China's soil. Starting from the three obstacles of continuous cropping, such as crop malnutrition, large amount of bacteria and soil poisoning, the continuous cropping problem can be solved in all directions. It has special effects on rotten roots, dead trees, stiff seedlings, poor growth and development, low yield and poor quality of crops. Simple and convenient to use, and can be mixed with most pesticides, fertilizers and fungicides. It is a pure biological preparation and has no side effects and residues on crops. Please feel free to use.
Second, the mechanism of action:
1: Microbial metabolites, the core technology of this product, contain a variety of polypeptide enzymes, active molecules, amino acids, etc. It can promote the reproduction of bacteria in soil, decompose soil accumulation, improve the living environment of crops, effectively prevent and solve the harm of soil-borne diseases, and contains a characteristic component, melittin, which can dredge crop ducts, promote nutrient absorption, promote cell division and activation, and rejuvenate crops.
2. Polypeptidase and active molecules contained in this product can decompose solidified phosphorus and metal trace elements in soil into ionic states, which can be reabsorbed by crops, and contain certain trace elements to ensure the nutrient supply of crops.
3. This product also contains photosynthetic carbon, that is, small molecular carbon, which enhances the absorption of carbon by crops from the roots. Moreover, this product is based on organic matter, and it can also supplement the organic matter content in the soil in a small amount.