Saline land improver and preparation method thereof

A technology of improving agent and saline-alkali land, applied in chemical instruments and methods, other chemical processes, organic fertilizers, etc., can solve the problems of insufficient environmental safety evaluation, high cost of preparation of new biological agents, and large application limitations. Improving the rhizosphere soil environment, improving the salt tolerance of crops, and improving the effect of soil buffering capacity

Active Publication Date: 2015-12-09
北京宝树农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Traditional saline-alkaline soil amendments have problems such as large application amount, limited application time, short duration, high labor costs for transportation and use, etc. New biological agents have high preparation costs, large application limitations, few application tests, and insufficient environmental safety evaluation Complete

Method used

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  • Saline land improver and preparation method thereof
  • Saline land improver and preparation method thereof
  • Saline land improver and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1. Preparation of modified saline-alkali microcapsule suspension:

[0047] 1) Add 100ml deionized water into a 200ml reaction flask, add 10g calcium citrate, 10g calcium nitrate, 5g calcium sulfate, 10g ammonium dihydrogen phosphate, 5g ferric chloride and 5g Tween-80 (polysorbate) In ionized water, stir at room temperature for 10 minutes until the dissolution and dispersion are uniform, and the water phase I is obtained;

[0048] 2) In a reactor equipped with heating and stirring equipment, add 200ml of biodiesel, 10g of n-butanol, and 20g of Span-40 (SPAN), stir at room temperature for 20 minutes until the dissolution and dispersion are uniform, and the oil phase II is obtained;

[0049] 3) Add the water phase I to the oil phase II, add 5 g of methacrylamide and 5 g of acrylic acid, stir and disperse at 3000 rpm high speed shearing and stirring for 10 minutes to make the system uniformly dispersed, and add the initiator azobisisobutyl Nitrile 0.8g, protected by nitr...

Embodiment 2

[0050] Example 2. Preparation of modified saline-alkali microcapsule suspension:

[0051] 1) Add 100ml deionized water to a 200ml reaction flask, add 5g calcium citrate, 10g calcium acetate, 4g calcium sulfate, 6g amino acid calcium, 9g ammonium dihydrogen phosphate, 6g ammonium hydrogen phosphate and 10g alkylphenol polyoxyethylene. Ether (OP-10) was added to deionized water, and stirred at room temperature for 15 minutes until the dissolution and dispersion were uniform, and the water phase I was obtained;

[0052] 2) In a reactor equipped with heating and stirring equipment, add 150ml of the cyclohexane, 15g of n-pentanol, Nongru 600#10g, and stir for 15min at room temperature until the dissolution and dispersion are uniform to obtain the oil phase II;

[0053] 3) Add the water phase I to the oil phase II, add 6 g of acrylamide and 4 g of N-methylol acrylamide, stir and disperse at high speed at 2000 rpm for 15 minutes to make the system uniformly dispersed, and add initiator Nit...

Embodiment 3

[0054] Example 3. Preparation of modified saline-alkali microcapsule suspension:

[0055] 1) Add 50ml deionized water into a 100ml reaction flask, add 6g calcium citrate, 2g calcium sulfate, 4g calcium chloride, 10g ferric ammonia citrate and 7g Triton X-100 (TX-100) into deionized water In water, stir at room temperature for 10 minutes until the dissolution and dispersion are uniform, and the water phase I is obtained;

[0056] 2) In a reactor equipped with heating and stirring equipment, add 50 ml of rosin-based vegetable oil, add 2 g of isoamyl alcohol and 5 g of 1-hexanol, and stir at room temperature for 10 minutes until the dissolution and dispersion are uniform to obtain the oil phase II.

[0057] 3) Add the water phase I to the oil phase II, add 4g of acrylamide and 1g of N,N-methylenebisacrylamide, stir and disperse at a high speed of 2500rpm for 10min to make the system evenly dispersed. The initiator azobisisobutyronitrile 0.5g, was protected by nitrogen, heated to 60°C, ...

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Abstract

The invention discloses a saline land improver and a preparation method thereof. The preparation method comprises the following steps: (1) dissolving water-soluble calcium, inorganic nutrients, and a water-soluble surfactant into deionized water, mixing, and stirring to obtain a water phase (I); (2) adding an auxiliary surfactant and an oil-soluble surfactant into an organic solvent, mixing, and stirring to obtain an oil phase (II); (3) in the presence of an initiator and an inert gas atmosphere, carrying out polymerization reactions among the water phase (I), the oil phase (II), and membrane-coated monomers to obtain reversed-phase microcapsule suspension emulsion. The provided saline land improver can improve the buffering performance of soil, reduce the soil pH value, effectively reduce the sodium ion concentration in plant cells, and improve the salt resistant performance of crops.

Description

Technical field [0001] The invention belongs to the field of agricultural planting, and specifically relates to a saline soil improver and a preparation method thereof. Background technique [0002] Saline-alkaline soil is a collective term for various types of soil affected by the saline-alkali components in the soil, including saline soil, alkaline soil, and a variety of salinized and alkaline soils, as well as soil types that coexist with desert soils and have salt crusts. Saline soil refers to the type of soil after a large amount of neutral salts have accumulated to a certain concentration (the salt content is greater than 0.5%-2%, the salt composition is different, and the salt lower limit is different). The main salt composition is sodium chloride and sodium sulfate. Alkaline soil is under the influence of sodium bicarbonate, sodium carbonate, etc., after sodium ions reach a certain amount in the exchangeable complex, the soil properties deteriorate (alkalinity>30%, pH&...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K109/00
Inventor 胡树文高子登
Owner 北京宝树农业科技有限公司
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