Soil testing, fertilization and soil extraction are key

To see a doctor, you need to prescribe the right medicine. Soil testing and formula fertilization is to diagnose your farmland and make up for it. The method is an advanced method of scientific fertilization, including the five core links of “measurement of soil, formula, fertilizer, supply, fertilization”. The use of soil as the first step in soil testing is the key to the entire fertilization process. Whether the soil is taken scientifically or not has a direct impact on the results of soil testing, which in turn affects the final results of fertilization. So, how can we do science to obtain land?
First of all, we must choose the period of sampling test. Different crop soils have different sampling periods. For fruit trees, the soil is harvested two weeks before the fruit tree is harvested, and the old ripening stage is suitable for the fall, the flowering stage is appropriate; the vegetable garden is planted before and after the harvest, and the fruit expansion period; the vegetable field is before and after the harvest; It is advisable for the land to be grown prior to planting and during the harvest period.
Second, master the method of scientific earth-fetching. Prepare earth-sucking tools such as stainless steel drills, plastic buckets, and hard bamboo sticks, and then select the borrow area. Generally, take 30-50 acres as a large sample, 5-10 acres as a sample, and the soil extraction location should be outside the block. About 5 meters of edge is appropriate, in each sample area evenly take 30-36 drill points, each sample area to take soil (total) 500-1000 grams is better. The specific method is as follows:
Plunge drilled surface soil layer about one centimeter, press steel drill vertically into earth 20 centimeters, then rotate steel drill and lift it up after half a week. Put the steel drill with soil in plastic bucket and use bamboo stick to disassemble the drill pipe. The soil, and then put the wet soil in the barrel into a clean plastic bag that was prepared in advance to mark the sampling address, soil name, front crop, and sampler.
The collected soil is left to dry in the sun, and then the dry earth is crushed into powder using a thick glass bottle, put into a clean plastic bag, and labeled. Dry soil samples collected by agrochemical personnel are numbered and sent to the testing department for inspection.
The testing department tests the soil sample and prints out the results, and provides fertilizer recommendations based on the type of planting. The agrochemical personnel handed over the test results to the peasant households for supply. The peasants chose suitable fertilizers according to the fertility of the soil to achieve what is missing and what is not wasted, and to create good economic benefits.

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