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Hickory soil acidification improver and its preparation method and application

A technology of soil acidification and hickory, which is applied in application, fertilizer mixture, fertilization device, etc., can solve the problems of soil fertility obstacles and soil-borne diseases, lack of comprehensive control function, large application cost and labor force, single function and function, etc., to achieve Improving soil acidification status, improving acidification phenomenon, and alleviating the effects of soil fertility obstacles

Inactive Publication Date: 2016-06-15
杭州市植保土肥总站 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although there are many studies on soil acidification improvers and their restoration and improvement technologies, there is no composite restoration agent with multiple functions such as acidification soil improvement of hickory, soil acidification-derived soil obstacle restoration, and soil-borne disease control. At present, the main purpose of acidified soil improvement is to reduce soil acidity, and the application amount of soil amendment per unit area is tens of tons / ha, and the application cost and labor force are relatively large.
In addition, the current soil conditioners have only a single role and function, and lack of comprehensive control functions for soil acidification and its derived soil fertility and soil-borne diseases; control, resulting in the status quo of treating the symptoms but not the root cause

Method used

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  • Hickory soil acidification improver and its preparation method and application
  • Hickory soil acidification improver and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 100kg of calcium cyanamide, 15kg of urea, 23kg of dolomite powder, 23kg of calcium oxide, 8kg of magnesium oxide, 3kg of sodium borate and 5kg of zinc sulfate, and put them into the disc spray granulator in turn, mix for 5 minutes, and obtain the mixed Homogeneous mixture, and make irregular granules with a particle size of 2 mm by a disc spray granulator, i.e. hickory soil acidification improver, and the pH of the improver is 9.0. The above hickory soil acidification improver is applied to the hickory woodland of soil acidification, the pH value of the woodland soil (soil layer depth is 20-30cm) is 4.5, and the exchangeable acidity is 6.9cmol / kg, which belongs to strongly acidic soil. Apply the above-mentioned hickory soil acidification improver to the ring ditch with a diameter of 1.2-1.3m and a depth of 20-30cm around the roots of the hickory tree, and the application rate is 0.75t / hm 2 , The application time is early November. Sampling and analysis in Septemb...

Embodiment 2

[0029] Weigh 100kg of calcium cyanamide, 30kg of urea, 45kg of dolomite powder, 45kg of calcium oxide, 23kg of magnesium oxide, 6kg of sodium borate, 8kg of zinc sulfate, 5kg of manganese carbonate and 4kg of copper sulfate, and put them into the disc spray granulator in turn , mixed for 5 minutes to obtain a homogeneous mixture, and obtained irregular particles with a particle size of 5 mm by a disc spray granulator, i.e. hickory soil acidification improver, and the pH of the improver was 9.8. The above hickory soil acidification improver is applied to the hickory woodland of soil acidification, the pH value of the woodland soil (soil layer depth is 20-30cm) is 4.5, and the exchangeable acidity is 6.9cmol / kg, which belongs to strongly acidic soil. Apply the above-mentioned hickory soil acidification improver to the ring ditch with a diameter of 1.2-1.3m and a depth of 20-30cm around the roots of the hickory tree, and the application rate is 1.05t / hm 2 , The application time i...

Embodiment 3

[0031] Weigh 100kg of calcium cyanamide, 15kg of urea, 30kg of dolomite powder, 30kg of calcium oxide, 15kg of magnesium oxide, 5kg of sodium borate, 7kg of zinc sulfate, 5kg of manganese carbonate and 3kg of copper sulfate, and put them into the disc spray granulator in turn , mixed for 5 minutes to obtain a homogeneous mixture, and obtained irregular particles with a particle size of 3.5mm by a disc spray granulator, i.e. hickory soil acidification improver, and the pH of the improver was 9.5. The above hickory soil acidification improver is applied to the hickory woodland of soil acidification, the pH value of the woodland soil (soil layer depth is 20-30cm) is 4.5, and the exchangeable acidity is 6.9cmol / kg, which belongs to strongly acidic soil. Apply the above-mentioned hickory soil acidification improver to the ring ditch with a diameter of 1.2 to 1.3m and a depth of 20 to 30cm around the roots of the hickory, and the application rate is 0.85t / hm 2 , The application time...

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Abstract

The invention discloses a hickory soil acidification modifier. The hickory soil acidification modifier comprises the effective components of, by weight, 100 parts of calcium cyanamide, 15 to 30 parts of urea, 23 to 45 parts of dolomite dust, 23 to 45 parts of calcium oxide, 8 to 23 parts of magnesium oxide and 8 to 23 parts of microelements. By combining calcium cyanamide, urea and dolomite dust according to the proper use level ratio, the hickory soil acidification condition can be improved, soil fertility obstacles derived from soil acidification are relieved, soil-borne diseases caused by soil acidification are controlled, calcium ions in soil are supplemented, and the phenomenon of calcium ion leaching caused by soil acidification is relieved. The invention further discloses a preparation method of the hickory soil acidification modifier and a method for restoring the hickory acidification soil through the modifier. By the adoption of the method for restoring the hickory acidification soil, the fertilizer application amount can be greatly reduced, the acidification phenomenon of the hickory soil is improved fundamentally, the acidification soil can be restored economically and effectively, and the yield of hickory nuts is remarkably increased.

Description

technical field [0001] The invention relates to the technical field of soil improvement and ecological restoration, in particular to a hickory soil acidification improver and a preparation method thereof, and a soil repair method using the hickory soil acidification improver. Background technique [0002] Hickory trees are mainly planted in soils developed in muddy, carbonaceous and dolomitic limestone and calcareous shale in the Middle-Upper Cambrian and Sinian systems. They like soils with limestone development and are suitable for planting at soil pH 5.5-7.2 in the soil. In recent years, with the improvement of the economic value of pecans, the price of pecans can reach 100-160 yuan / kg. In order to obtain higher yields and economic benefits, fruit farmers usually apply a large amount of inorganic compound fertilizers and urea, resulting in severe acidification of the hickory forest soil, and a significant drop in soil pH, resulting in severe hickory fruit drop and severe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 徐祖祥王道泽卢升高祝小祥陆妙根周航杨文叶李丹
Owner 杭州市植保土肥总站
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