For the growth of crops, when the nutrition of the land is not enough, artificial fertilization is essential. So what is the soil testing formula? How to carry out? What are the benefits? What are the technologies? It is reported that soil testing and formula fertilization is based on soil testing and fertilizer field experiments, according to crop fertilizer requirements, soil fertility and fertilizer effects. On the basis of rational application of organic fertilizer, the application quantity, fertilization period and application method of nitrogen, phosphorus, potassium and medium and trace elements were proposed.
How to carry out soil testing and formula fertilization?
1. Distributing the fertilizer card method: The agricultural technicians collect the soil samples for analysis and test, and according to the test results and the crops to be planted, the fertilizer formula ratio card is issued to the farmers and is prepared by themselves;
2. “One bag†fertilizer method: The agricultural technicians collect soil samples for analysis and test, formulate special fertilizer formula according to the crop varieties to be planted, openly bid for the reputable and quality fertilizer production enterprises, and the farmers plant one mu. The crop buys a bag of special fertilizer.
What are the benefits of soil testing and fertilization?
1. Soil testing and formula fertilization is the combination of several fertilizers, which can improve the utilization rate of fertilizer.
2. Soil testing and formula fertilization can achieve different soils and crops, different fertilizer formulas, targeted, avoiding waste of fertilizer and saving costs.
3, soil testing formula fertilization has an obvious effect of increasing production and income.
4. Soil testing and formula fertilization can improve the quality of agricultural products, improve soil fertility, protect the ecological environment, and improve the ability of crops to resist disease and insects.
5, soil testing formula fertilization can be based on soil, crops to prepare high-concentration special formula fertilizer, reduce the amount of fertilizer per acre, reduce labor.
What are the soil testing formula fertilization techniques?
The soil testing formula fertilization technology includes five core links and nine key contents of “measurement of soil, formula, fertilizer, supply and fertilizationâ€.
Field trials.
The field experiment is the fundamental way to obtain the best fertilization amount, fertilization period and fertilization method for various crops, and also the basic link for screening and verifying soil nutrient testing technology and establishing fertilization index system. Through field trials, master the optimal fertilization amount, base and topdressing distribution ratio, fertilization period and fertilization method for each cropping unit; find out the basic parameters such as soil nutrient correction coefficient, soil fertilization amount, crop fertilizer requirement and fertilizer utilization rate; Construct a crop fertilization model to provide a basis for fertilization zones and fertilizer formulations.
Soil testing.
Soil testing is one of the important basis for formulating fertilizer formula. With the continuous adjustment of China's planting structure, high-yield crop varieties are constantly emerging, the structure and quantity of fertilization have undergone great changes, and the soil nutrient pool has also undergone significant changes. Through the soil nitrogen, phosphorus, potassium and medium and trace element nutrient tests, the soil fertility capacity can be understood.
Formulation design.
Fertilizer formula design is the core of soil testing and formulating. By summarizing field trials, soil nutrient data, etc., the division of fertilization zones in different regions is divided. At the same time, according to the similarities and differences of climate, landform, soil and farming system, combined with expert experience, the fertilization formulas of different crops are proposed.
Calibration test.
In order to ensure the accuracy of fertilizer formula and minimize the risk of batch production and large-area application of formula fertilizer, three treatments of formula fertilization, farmer custom fertilization and blank fertilization are set in each fertilization partition unit to the main local crops and their main The planting variety is the research object, compare the yield increase effect of formula fertilization, verify the fertilization parameters, verify and improve the fertilizer formula, and improve the technical parameters of soil testing formula fertilization.
Formulation processing.
The implementation of the formula into the farmer's field is the most critical link to improve and popularize the soil testing and fertilization technology. At present, there are different modes in different regions. The most important and most promising mode of operation is market operation, factory processing, and network operation. This model adapts to the current situation of low quality of science and technology, small scale of land management, and separation of technology among rural farmers in China.
Website URL: What are the benefits of soil testing and formula fertilization? How to engage in soil testing and fertilization
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