What is soil testing and formula fertilization?
To see a doctor in the hospital, the doctor must first diagnose the test for you and then prescribe the prescription according to the condition. You can treat the patient symptomatically. Soil testing and formula fertilization is Dr. Tian's prescription for your cultivated land.
What we call soil testing and formula fertilization is internationally known as balanced fertilization. This technology is the advanced agricultural technology that the United Nations has promoted throughout the world. In summary, the first is soil testing, soil sampling to determine soil nutrient content; the second is formula, after diagnosis of soil nutrients, in accordance with the nutritional needs of the crop "open prescription, according to prescriptions"; third is reasonable fertilization, is Agricultural science and technology personnel under the guidance of scientific application of formula fertilizer.
Why do you want to implement soil testing and formula fertilization?
This starts with the relationship between crops, soil, and fertilizer. The root of crop growth is in the soil, and 60%-70% of plant nutrients are absorbed from the soil. There are many types of soil nutrients, which are mainly divided into three categories: The first is the relatively low content of soil, and the crops absorb and use more nitrogen, phosphorus and potassium, which are called a large number of elements. The second category is that the soil content is relatively high but the crops need less, such as silicon, sulfur, iron, calcium, magnesium, etc., and are called medium-sized elements. The third category is that there are few soils and few crops are needed, mainly copper, boron, manganese, zinc, molybdenum, etc., which are called trace elements. The nutrients contained in the soil are all necessary for the growth and development of crops. When the nutrient supply to the soil is insufficient, it is necessary to rely on fertilization to supplement it in order to achieve a balance between supplying fertilizer and crops requiring fertilizer.
What are the contents of soil testing and formula fertilization?
Soil testing is based on the diagnosis of the soil, analyzing the law of the crop's fertilizer requirements, and mastering the characteristics of soil fertilization and fertilizer release-related conditions, and determining the type of fertilizer to be applied, the amount of fertilizer used, and the proportion of fertilizer.
In a broad sense, it should include the combination of agricultural fertilizer and chemical fertilizers. Here you can use a metaphor to supplement the soil nutrients and apply the ratio of farming and fertilizer as "food supplement", and use chemical fertilizer ratio as "drug supplement". People often say that “food supplements are better than medicinal supplements,†because farmyard manure contains large amounts of organic matter, which can increase the structure of soil aggregates, improve soil water, fertilizer, and air and heat conditions. It can not only supplement nitrogen, phosphorus, and potassium that are insufficient in soil. Large elements can be supplemented with various kinds of trace elements. Practice has proved that the combination of farmyard fertilizers and chemical fertilizers can increase fertilizer utilization by 5% to 10%.
How to achieve soil testing and formula fertilization?
Balanced fertilization technology is a more complex systematic engineering technology, and it is not easy for farmers to master it. Only after materializing this technology can it be truly realized. One-stop service is measured, matched, produced, supplied, and applied. Soil testing and formulating are performed by specialized departments. Fertilizer companies produce and supply farmers according to formulas, and agricultural technicians direct scientific applications. Simply put, farmers directly buy formula fertilizer and apply it according to specific plans. In this way, a complex technology has become a simple matter that can really be applied to agricultural production in order to play its due role.
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