Application of iminodisuccinate as fertilizer synergist
A technology of iminodisuccinate and iminodisuccinate, which is applied in the field of iminodisuccinate, can solve the problems of affecting the growth and development of post-season crops, excessive deposition of metal ions, and soil compaction and hardening. Improvement of element deficiency, improvement of soil compaction, and improvement of physiological diseases
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Embodiment 1
[0021] This example is a preparation example of chelated urea added with iminodisuccinic acid tetrasodium salt; the addition amount of the fertilizer synergist iminodisuccinic acid tetrasodium salt is 5‰ of the urea consumption.
[0022] The preparation method is:
[0023] Add the coloring agent into the stirring device, mix it with iminodisuccinic acid tetrasodium salt with a solid content of 40%, after the coloring agent is dissolved, stirred and dispersed evenly, use a metering pump to chelate the above solution at a rate of 5Kg synergist / ton The proportion of urea is evenly sent to the front inlet pipeline of the melting pump of the urea production line, and then enters the prilling tower for granulation, and finally obtains chelated urea.
[0024] The prepared chelated urea and ordinary urea were subjected to performance tests respectively, and the test data are shown in Table 1.
[0025] The performance test comparison of table 1 chelated urea and common urea
[0026] ...
Embodiment 2
[0028] This example is a preparation example of chelated urea-based compound fertilizer added with tetrasodium iminodisuccinate. 1 ton of chelated urine-based compound fertilizer contains the following ingredients:
[0029] Urea 276kg, potassium sulfate 310kg, ammonium phosphate 410kg, iminodisuccinic acid tetrasodium salt (solid) 4kg.
[0030] The preparation method is:
[0031] Add the coloring agent into the stirring device and mix it with the iminodisuccinic acid tetrasodium salt solution with a solid content of 40%. The ratio of 10Kg of tetrasodium iminodisuccinic acid solution in the medium is evenly sent to the front inlet pipeline of the drum of the urea-based compound fertilizer production line, and then enters the drum for granulation. The tetrasodium iminodisuccinic acid and coloring agent are mixed with other The materials (urea, potassium sulfate, ammonium phosphate and a small amount of water) are mixed evenly, and part of the materials are melted and bonded wi...
Embodiment 3
[0034] This embodiment is a preparation embodiment of the chelated water-soluble fertilizer added with tetrasodium iminodisuccinate. 1 ton of chelated water-soluble fertilizer contains the following components: urea 342kg, potassium nitrate 240kg, ammonium phosphate 410kg, iminodisuccinic acid tetrasodium salt (solid) 8kg. Manufacturing equipment and preparation method are with embodiment 1.
[0035] After testing, the chelated water-soluble fertilizer has met the requirements of the national quality standard.
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