Soil testing formula fertilization six steps

Collect soil samples. Soil sample collection is generally carried out after the autumn harvest. The main requirements for sampling: location selection and soil samples collected should be representative. The sampling depth is generally 20 cm. If the root of the crop is deep, the sampling depth can be appropriately increased. The sampling takes 50 to 100 mu as a sampling unit. In the sampling unit, select 5 to 20 samples according to the “S” type, remove the topsoil cover, dig into the section according to the standard depth, and take the soil evenly according to the soil layer. Then, mix the collected soil samples and put them into the bag. The bag should be labeled, indicating the sampling location, date, sampler and relevant content of the analysis.
Test the soil. Mainly based on five basic tests, namely alkaline nitrogen, available phosphorus, available potassium, organic matter and PH value. Soil testing should be accurate and timely. The data obtained by the test should be filled in the test list, registered, and loaded into the geotextile file, input into the computer, and the soil database.
Determine the formula. Formulation is determined by agricultural technicians. According to the types of crops planted by the farmers and their expected yield indicators, the agricultural science and technology personnel determine the fertilizer formula according to the expected yield indicators of the crops, the amount of fertilizer supplied to the soil, and the utilization rate of different fertilizers. The test plots are implemented to farmers so that farmers can buy fertilizers on a per-party basis.
Buy fertilizer and fertilizer. Farmers choose high-quality fertilizer according to the formula.
Scientific fertilization. The farmer fertilizes the crop according to the fertilization method recommended by the experts, the fertilization period, the fertilization variety, and the amount of fertilization. Used as a fertilizer for topdressing, it depends on the sky, the ground, the object, and the timing of topdressing.
Track the survey and adjust the recipe. Scientific and technical personnel should do a field investigation, record in detail, establish a file, and also conduct some formula verification tests, and adjust the fertilization according to the feedback information.
Author: Willow Nongbo network

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