Preparation method of high-efficiency phosphorus-containing product and application thereof
A product and high-efficiency technology, applied in the agricultural field, can solve the problems such as the disappearance of phosphorus activation effect and the insignificant effect of phosphorus fertilizer, and achieve the effect of improving effectiveness
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[0028] A method for preparing a high-efficiency phosphorus-containing product, comprising the following steps: using the product of agricultural waste pyrolysis in an anaerobic environment at 600-700°C as biochar; using phosphate fertilizer, biochar, and sulfur powder according to the mass ratio (90-70) :(5~15):(5~15) fully mix to obtain the phosphate fertilizer mixed material; then spray 20~35L of 1.0%~1.5% polyacrylamide solution in every 1000 kg of phosphate fertilizer mixed material, fully stir and dry A high-efficiency phosphorus-containing product can be obtained, which can improve the utilization rate of phosphorus.
[0029] The phosphate fertilizer is a general commercial phosphate fertilizer, such as ordinary calcium, heavy calcium or diammonium phosphate.
[0030] The biochar is produced by anaerobic pyrolysis of agricultural waste apple branches at a high temperature of 600 degrees. The particle size is 0.10-0.15 mm. The biochar has a large surface area and rich fun...
Embodiment 1
[0039] Adding sulfur powder and biochar to the promotion effect of available phosphorus in the phosphate fertilizer of embodiment 1
[0040] (1) The effect of adding sulfur powder to increase the content of available phosphorus
[0041]Phosphorus fertilizer is transformed in the soil after it is applied to the soil, and its effectiveness can be expressed by soil available phosphorus. Adding sulfur powder alone to the phosphate fertilizer and applying it to the soil (the initial phosphorus level is uniformly 150mg / kg) can increase the available phosphorus content in the soil (see figure 1 ), and with the increase of sulfur powder addition, the available phosphorus content showed an upward trend. Compared with the control (without adding sulfur powder), the available phosphorus increased by an average of 7.95% when it was applied to the soil for 60 days, and the treatment with an addition ratio of 15% increased by 8.75%; The ratio is 15% an increase of 9.05%.
[0042] (2) The...
Embodiment 2
[0051] Effect of adding sulfur powder and biochar to microbial phosphorus in the phosphate fertilizer of embodiment 2
[0052] (1) The effect of adding sulfur powder to phosphate fertilizer to increase the phosphorus content of microorganisms
[0053] The addition of sulfur powder is to further increase the content of soil microbial phosphorus by increasing soil sulfur bacteria. Adding different proportions of sulfur powder alone can increase the content of soil microbial phosphorus (see Figure 6 ), and with the increase in the proportion of sulfur powder added, the microbial phosphorus content showed an upward trend. When applied to the soil for 60 days, the average increase was 8.06%, and for 150 days, the average increase was 7.62%, and the increase was the largest when the proportion of sulfur powder was 15%, which increased by 8.87% and 9.05% at 60d and 150d, respectively.
[0054] (2) The effect of adding biochar to phosphate fertilizer to increase the phosphorus cont...
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