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Special moisture preservation compound fertilizer for maize in arid and semi-arid area and preparation thereof

A semi-arid technology dedicated to corn, applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of poor water retention and low fertilizer nutrient utilization rate, and achieve the goal of promoting photorespiration, benefiting quality, and increasing input Effect

Inactive Publication Date: 2009-06-24
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the special fertilizers are mainly compound granulation, the fertilizer nutrient utilization rate is low, it cannot retain water well, and cannot well meet the needs of corn growth.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Add 1 kg of wood bran, 10 kg of peanut cake, 3 kg of lignite, and 0.005 kg of yeast, after crushing, add about 1.5 kg of diluted urea solution (the weight concentration of urea solution is 10%) for mixing, and mix and stack at room temperature for fermentation Two weeks (or fermented by fermentation equipment, the fermentation time can be shortened to 24-72 hours), after that, dry it in the sun for three days (or dry it with a drying mechanism), and become a dry product of about 10 kg (organic matter ≥ 70%) ), and carry out secondary pulverization, cross 100 mesh sieves.

[0028] Soak 3 kg of attapulgite in 10% hydrochloric acid by weight for 24 hours, dry at 120°C until constant weight, and crush it for later use.

[0029] 2) Add 8 kg of cornstarch to distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 3 kg of attapulgite, 10 kg of organic matter, 0.3 kg of initiator potassium persulfate, and 20 kg of propylene under vigorous stirring Amide, ...

Embodiment 2

[0033]1) Put 10 grams of wood bran, 150 grams of bean cake, 35 grams of lignite, and 0.07 grams of yeast. After crushing, add 20 grams of urea solution with a total concentration of 10% for stirring. , the fermentation time can be shortened to 24-48 hours), and then dried in the air for three days (or dried with a drying mechanism), and become a dry product with about 140 grams, which is crushed twice and passed through a 100-mesh sieve.

[0034] Soak 78 grams of attapulgite in hydrochloric acid with a total concentration of 10% for 24 hours, bake at 120° C. to constant weight, crush and set aside.

[0035] 2) Add 150 grams of cornstarch into distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 78 grams of attapulgite, 140 grams of organic matter, 6 grams of initiator ammonium sulfate, and 120 grams of acrylamide under vigorous stirring , 2 grams of cross-linking agent polyethylene glycol diglycidyl ether, 30 grams of expanded perlite and 1 L of water, th...

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Abstract

A water retention compound fertilizer specially used for maize in arid-semiarid regions is characterized by being formed by mixing water retention agent and slow release fertilizer according to the weight ratio of 2-4:8-20; based on the effective content, the composition by weight of the compound fertilizer is N:P:K:Zn=1:0.15-0.45:0.27-0.47:0.08-0.1; the weight content of hydroquinone and / or dicyandiamide is 2.0-3.0% of the weight content of N in the fertilizer; the water retention agent is a mixed type water retention agent and comprises the components of 100-200 parts of organic matter, 0.2-3 parts of active sealing face agent, 150-200 parts of acrylamide, 50-100 parts of starch, 20-50 parts of attapulgite, 20-40 parts of perlite, 2-4 parts of evocating agent and 0.5-1 part of cross linker according to the parts by weight. The water retention compound fertilizer has low cost and convenient application, and can effectively play the role of water retention, fertilizer conservation andlong-effect yield growth.

Description

technical field [0001] The invention relates to a special water-retaining compound fertilizer for corn in arid and semi-arid areas, which is a water-retaining and drought-resistant compound fertilizer containing various fertilizers, water-retaining agents, coatings and other main components. Background technique [0002] Maize is a high-yielding crop. Its sown area and total output in the world are second only to rice and wheat, ranking third. Maize is not only a food crop, but also a crop with both economic and feed functions. It is an important component of hundreds of valuable industrial products. Raw materials play an extremely important role in the national economy. Corn fertilization technology includes base fertilizer, seed fertilizer and topdressing, and topdressing is divided into seedling fertilizer, ear fertilizer and grain fertilizer. Fertilization is the guarantee of corn yield and quality. However, due to the low price of corn, the profit of planting is too s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G1/00C05G3/80
Inventor 马强宇万太张璐周桦
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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