Preparation method of fertilizer

A fertilizer and fertilizer technology, which is applied in the field of agricultural science and technology, can solve the problems of inapplicability, large difference in nutrient content, inconvenient storage of organic fertilizer, etc.

Inactive Publication Date: 2009-05-06
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The second is that the N, P, and K nutrient contents of different fertilizer varieties vary greatly. Many farmers who farm at home are women and the elderly with relatively low education levels. It is difficult for them to calculate the amount of various fertilizers by themselves; the third is Farmers usually use one or more kinds of fertilizers, and many farmers also use organic fertilizers. Because organic fertilizers are inconvenient to store, they must be applied to the farmland. If you use a pure mathematical formula (ternary equation ) to calculate the amount of fertilizer that farmers are used to fertilizing, there may be no solution, several solutions, or a negative number, which makes these results unapplicable when actually recommending fertilizers

Method used

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  • Preparation method of fertilizer
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Examples

Experimental program
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Embodiment 1

[0028] Required nutrients: nitrogen (N) 25 kg, phosphorus (P2O5) 15 kg, potassium (K2O) 15 kg.

[0029] Farmers have 1,500 kg of pig manure, all of which need to be applied to the farmland. The types of chemical fertilizers that farmers are used to using are compound fertilizer No. 1 and urea. The nutrient content of the fertilizer can be found on the fertilizer packaging bag, published professional journals, or existing It is determined through experiments under technical conditions. The relevant parameters of the types of fertilizers used by farmers are shown in Table 1 below, where: N%-fertilizer nitrogen content (%), P 2 o 5 %-Phosphorus content of fertilizer (P 2 o 5 %), K 2 O%-fertilizer potassium content (K 2 O%), N / Tol-fertilizer nitrogen content / fertilizer contains nitrogen, phosphorus and potassium total amount, P 2 o 5 / Tol-Phosphorus content of fertilizer / Total amount of nitrogen, phosphorus and potassium in fertilizer, K 2 O / Tol-potassium content of fertil...

Embodiment 2

[0047] This embodiment is the same as Example 1, except that the amount of organic fertilizer is 5000 kg, and Table 3 shows the amount of fertilizer in this embodiment.

[0048] Table 3. The fertilization amount calculation table (unit: kilogram) of embodiment 2

[0049]

Embodiment 3

[0051] This embodiment is the same as Embodiment 1, except that the amount of organic fertilizer is 0 kg, that is, no organic fertilizer is applied. Table 4 shows the amount of fertilizer in this embodiment.

[0052] Table 4. The fertilization rate calculation table (unit: kilogram) of embodiment 3

[0053]

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Abstract

The invention relates to a fertilizer preparation method and belongs to the field of agricultural science and technology. The method comprises the following steps: the amount of organic fertilizer for anticipated use is determined; the content of nitrogen nutrient in the organic fertilizer is calculated; if the content of the nitrogen nutrient is larger than the needed content of the nitrogen nutrient and is larger than a set threshold value, the amount of the organic fertilizer is adjusted in order that the content of the nitrogen nutrient is equal to the threshold value; otherwise, the amount of the organic fertilizer for anticipated use is used as the amount of the organic fertilizer; if the content of the nitrogen nutrient is insufficient, a nitrogen fertilizer is used for complementing the balance between the content of the nitrogen nutrient and the needed content of the nitrogen nutrient; if the total content of kalium nutrient is insufficient, a kalium fertilizer is used for complementing the balance between the total content of the kalium nutrient and the needed content of the kalium nutrient; if the total content of phosphorus nutrient is insufficient, a phosphate fertilizer is used for complementing the balance between the total content of the kalium nutrient and the needed content of the kalium nutrient; if the total content of the nitrogen nutrient is excessive, the used nitrogen fertilizer is reduced in nitrogen preparation in order that the total content of the nitrogen nutrient is close to the needed content of the nitrogen nutrient; and the use amount of the nitrogen fertilizer is limited through reducing to zero. The fertilizer preparation method can be used for a fertilization formula of the fertilizer.

Description

technical field [0001] The invention relates to a method of compounding fertilizers, in particular to a method for optimizing the amount of fertilizers of different varieties based on the amount of nitrogen, phosphorus and potassium nutrients. It belongs to the field of agricultural science and technology. Background technique [0002] In order to achieve stable and high yield in agriculture, improve fertilizer utilization rate, save resources and energy, and realize sustainable development of environmentally friendly agriculture, scientific researchers, experts and agricultural technicians from various countries have conducted a large number of experiments on crop formula fertilization, and have developed A series of formula fertilization methods have been developed, which has favorably promoted the development of agriculture. [0003] The most typical and commonly used methods are target yield method, zoning fertilizer distribution method, soil testing and fertilizer dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 岳现录冀宏杰张维理徐爱国张认连
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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