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Special high-yield corn fertilizer for shajiang black soil

A special fertilizer for corn and sand ginger black soil technology, applied in the direction of application, fertilization device, fertilizer mixture, etc., can solve the problems of poor application effect, and achieve the effect of not easy to stratify and reasonable design

Inactive Publication Date: 2014-05-21
INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Calcium magnesium phosphate fertilizer is an alkaline fertilizer, which must be applied on acidic soil to exert its fertilizer effect, and the application effect on alkaline soil is poor

Method used

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  • Special high-yield corn fertilizer for shajiang black soil
  • Special high-yield corn fertilizer for shajiang black soil
  • Special high-yield corn fertilizer for shajiang black soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The special fertilizer for high-yielding corn used in Shajiang black soil consists of base fertilizer and topdressing fertilizer, wherein the base fertilizer is composed of A component and B component; the topdressing fertilizer is urea;

[0018] The A component: it is composed of 19.2 kg of urea, 6.5 kg of diammonium phosphate and 10 kg of potassium chloride; the total nutrient content is 10 kg of nitrogen, 3 kg of phosphorus pentoxide, and 6 kg of potassium oxide;

[0019] The B component is powdery calcium magnesium phosphate fertilizer, which is 16.7 kg of calcium magnesium phosphate fertilizer containing 18% phosphorus pentoxide, and the total nutrient content is phosphorus pentoxide (P 2 o 5 ) 3 kg;

[0020] Components A and B are packaged separately, and they are spread separately during application, that is, component A can be sprayed first and then component B, or component B can be sprayed first and then component A; The application rate is 35.7 kg / mu, and t...

Embodiment 2

[0030] The special fertilizer for high-yield corn that is used for Shajiang black soil is the same as in Example 1.

[0031] In 2012, the summer maize was tested on the Shajiang black soil in Baoji Town, Huaiyuan County, Anhui Province, using the formula fertilizer of the present invention. Maize variety Denghai 605, density 4500 plants / mu, physical and chemical properties of Shajiang black soil tested: soil organic matter content 12.4g / kg, total nitrogen 0.81 g / kg, soil available phosphorus 22.5mg / kg, soil available potassium 118.3mg / kg kg. Fertilization scheme is the same as embodiment one. As can be seen from Table 2, the corn fertilizer formula fertilizer of the present invention has a significant yield-increasing effect, and the yield-increasing rate of corn reaches 13.4%, and the income per mu increases by 164.7 yuan.

[0032] Table 2 Effect of corn formula fertilizer on corn yield (Baoji Town, Huaiyuan County)

[0033]

[0034] Note: The price of corn is 2.32 yuan...

Embodiment 3

[0037] The special fertilizer for high-yield corn that is used for Shajiang black soil is the same as in Example 1.

[0038] In 2012, the effect test of applying the formula fertilizer of the present invention to summer corn was carried out in Shajiang black soil in the science and technology demonstration garden of Suzhou Academy of Agricultural Sciences, Anhui. Corn variety, Qinlong 14, density, 4500 plants / mu. The physical and chemical properties of Shajiang black soil tested: soil organic matter content 14.1g / kg, total nitrogen 0.97 g / kg, soil available phosphorus 33.4mg / kg, soil available potassium 123.7mg / kg. Fertilization scheme is the same as embodiment one.

[0039] Table 3 Effect of corn formula fertilizer on corn yield (Science and Technology Demonstration Park of Suzhou Academy of Agricultural Sciences)

[0040]

[0041] Note: The price of corn is 2.32 yuan / kg

[0042] As can be seen from Table 3, the present invention has a significant yield-increasing effec...

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Abstract

The present invention relates to a special high-yield corn fertilizer for shajiang black soil. The special fertilizer comprises a base fertilizer and a top dressing, wherein the base fertilizer comprises a component A and a component B, the top dressing is urea, the total nutrient content of the component A comprises 7.4-11.4 kg of nitrogen, 1-5 kg of phosphorus pentoxide, and 4-8 kg of potassium oxide, the total nutrient content of the component B comprises 3 kg of phosphorus pentoxide (P2O5), the component A and the component B are respectively and independently packaged, and are separately applied during applying, and the top dressing is dressed at a full-grown stage of corn, wherein the component A is firstly applied and then the component B is applied, or the component B is firstly applied and then the component A is applied. The special high-yield corn fertilizer for shajiang black soil provides a significant yield increase effect, wherein a corn yield is increased by 5.2-13.4%, and mu income is increased by 69.5-164.7 yuan.

Description

technical field [0001] The invention belongs to the technical field of agricultural soil and fertilizer, and in particular relates to a special fertilizer for high-yield corn. Background technique [0002] Calcium magnesium phosphate fertilizer is an alkaline fertilizer, which must be applied on acidic soil to exert its fertilizer effect, and the application effect on alkaline soil is poor. Shajiang black soil is a calcareous soil. Before the 1980s, the soil generally had a pH value between 7.2 and 8.6, which was an alkaline soil. Phosphate fertilizers were mainly acidic superphosphate and ammonium phosphate fertilizers, and alkaline and citrate-soluble calcium magnesium phosphate fertilizers. It is considered that it has no effect on sand ginger black soil, and it is hardly used. The content of available phosphorus in Shajiang black soil is low, and most of them are lower than 5 mg / kg before a large amount of chemical fertilizers are applied. Phosphorus fertilizer is the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00
Inventor 何传龙朱宏斌蒋光月
Owner INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI