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Method for meliorating alkaline land

A saline-alkali land and land technology, applied in chemical instruments and methods, soil-lifting machinery, organic fertilizers, etc., can solve problems such as environmental damage, storage and waste of fresh water, etc., and achieve the effects of low cost, quick improvement and good improvement effect.

Inactive Publication Date: 2007-12-05
TIANJIN HANGU DISTRICT FUXIANG FERTILIZER PROCESSING FACTORY
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AI Technical Summary

Problems solved by technology

Although this method can realize the desalination of saline-alkali land, it is a waste of fresh water, and the flushing water contains salt, which is easy to cause new damage to the environment

Method used

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Examples

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Embodiment

[0007] Example: A method for improving saline-alkali land, detecting the content of salt in the soil; calculating the amount of ammonium bicarbonate per acre according to the content of salt in the soil, the amount of ammonium bicarbonate (kg / mu) = (salt content in the soil- 3‰)×50, the actual dosage is 120% of the standard value; according to the calculation result, evenly disperse ammonium bicarbonate on the saline-alkali ground, and then use the rotary tillage of the land. The depth of the rotary tillage is 15 cm. Use the vibrator on the rotary tiller to vibrate the soil again; after 15 days of rotary tillage the soil, check the alkali content in the soil and calculate the amount of phosphoric acid. The amount of phosphoric acid (kg / mu) is in accordance with (alkali content in soil / 8.5)× 2.1 Confirmation; According to the calculated value of the amount of phosphoric acid, the amount of phosphoric acid is formulated into an aqueous solution with a concentration of 1%, and the ph...

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PUM

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Abstract

The process of improving saline land includes the steps of detecting the salt content in the land, calculating the required amount of ammonium bicarbonate each area unit, dispersing ammonium bicarbonate in the amount of 120 % required amount to the land, rotarily tilling, vibrating and rolling, detecting the alkali content in the land, calculating the required amount of phosphoric acid based on the formula of (alkali content / 8.5)x2.1, compounding the phosphoric acid into 1 % concentration water solution and spraying the water solution to the land. The present invention has the advantages of low cost and high saline land improving effect.

Description

[0001] Technology Territory [0002] The invention relates to a method for improving saline-alkali land. Background technique [0003] At present, most of my country's saline-alkali land is in a barren state, and the yield of a small part of saline-alkali arable land is also very low. Regarding the method of desalination of saline-alkali land, use fresh water to desalinate the saline-alkali land, introduce the fresh water into the saline-alkali land, wash the saline-alkali land in pieces, and then discharge the flushing water into the drain. Although this method can realize the desalination of saline-alkali land, there is a waste of fresh water, and the washing water contains salt, which is likely to cause new damage to the environment. Summary of the invention [0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a method for improving saline-alkali land. [0005] The technical scheme of the present invention is: a method for im...

Claims

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Application Information

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IPC IPC(8): A01B77/00C09K17/00
Inventor 杜云福
Owner TIANJIN HANGU DISTRICT FUXIANG FERTILIZER PROCESSING FACTORY
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