Special AB fertilizer for leaf vegetable water culture and preparation method thereof

A technology of vegetable water and magnesium sulfate heptahydrate, applied in the directions of botanical equipment and methods, applications, nitrogen fertilizers, etc., can solve the problems of inability to produce nutrient supply and economic benefits, low nutrient availability, complicated fertilizer preparation process, and the like, To achieve the effect of no residue, fast dissolution speed and good water solubility

Inactive Publication Date: 2021-02-02
BEIJING AGRI TECH PROMOTION STATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional compound fertilizers and macroelement water-soluble fertilizers are not the fertilizers produced for the research and production of soilless cultivation models, and the problem of nutrient deficiency often occurs when used in soilless cultivation.
Moreover, the use of raw material fertilizers can alleviate the p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Fertilizer A includes by weight: 54 parts of calcium ammonium nitrate, 10.5 parts of potassium nitrate, and 1.5 parts of sodium ferric diethylenetriaminepentaacetate;

[0032] B fertilizer includes by weight: 30 parts of potassium nitrate, 25 parts of magnesium sulfate heptahydrate, 10 parts of potassium dihydrogen phosphate, 0.22 parts of manganese sulfate monohydrate, 0.15 parts of zinc sulfate heptahydrate, 0.025 parts of copper sulfate pentahydrate, molybdic acid 0.012 parts of sodium, 0.5 parts of boric acid and 0.015 parts of additives.

[0033] This fertilizer is used in multi-span greenhouses in Changping District, Beijing for hydroponic production of non-heading pak choy and lettuce. The production mode is deep liquid flow hydroponic culture. It takes 28 days from planting to harvest. The average yield of a single stubble of non-heading pak choy is 3.65kg. ·m2, lettuce yield 3.88kg·m2.

Embodiment 2

[0035] A fertilizer includes by weight: 40 parts of calcium ammonium nitrate, 12.4 parts of potassium nitrate, 1.5 parts of sodium iron diethylenetriamine pentaacetate;

[0036] B fertilizer includes by weight: 28 parts of potassium nitrate, 15 parts of magnesium sulfate heptahydrate, 10 parts of potassium dihydrogen phosphate, 0.22 parts of manganese sulfate monohydrate, 0.15 parts of zinc sulfate heptahydrate, 0.025 parts of copper sulfate pentahydrate, molybdic acid 0.012 parts of sodium, 0.5 parts of boric acid and 0.015 parts of additives.

[0037] The fertilizer was used for hydroponic production of butter lettuce in a solar greenhouse in Miyun District, Beijing. The production mode is pipe-type shallow liquid flow hydroponics. It takes 35 days from planting to harvest, and the average yield of single-crop butter lettuce is 3.84kg·m2.

[0038] Preferably, fertilizer A includes by weight: 50 parts of calcium ammonium nitrate, 12.5 parts of potassium nitrate, and 1 part of...

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PUM

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Abstract

The invention discloses a special AB fertilizer for leaf vegetable water culture. The special AB fertilize comprises a fertilizer A and a fertilizer B. The fertilizer A comprises calcium ammonium nitrate, potassium nitrate and ferric sodium diethylenetriamine pentaacetate. The fertilizer B comprises potassium nitrate, magnesium sulfate heptahydrate, monopotassium phosphate, manganese sulfate monohydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate, sodium molybdate, boric acid and auxiliaries. According to the special AB fertilizer for leaf vegetable water culture, a high-efficiencycalcium source is used as a base, a proper amount of fertilizer A containing potassium, chelated trace elements such as iron and the like is added, and hot-process phosphoric acid is used as a base,and a proper amount of phosphate, potassium magnesium and other inorganic and chelated trace elements are added so that precipitation reaction can be effectively prevented; comprehensive and balancednutrition is provided for growth and development of crops, the utilization rate of the fertilizer is increased, hardening is not likely to happen in the storage period, and therefore the fertilizer ismore suitable for the nutrient solution for soilless culture.

Description

technical field [0001] The invention relates to a vegetable planting technology, in particular to an AB fertilizer specially used for hydroponics of leafy vegetables and a preparation method thereof. Background technique [0002] Hydroponics is a new type of plant soilless cultivation method, also known as nutrient liquid culture. Its core is to directly infiltrate the root system of the plant in the nutrient solution. This nutrient solution can replace the soil and provide water, nutrients, oxygen, etc. to the plant. Growth factors that allow plants to grow normally. The nutrients of the nutrient solution are supplied by fertilizers, so suitable fertilizers are the core issue of hydroponic production. The soilless culture nutrient solution must contain 12 elements such as N, P, K, Ca, Mg, S, Fe, Mn, Zn, B, Cu, Mo, etc. at the same time, and the ratio of these 12 elements must be appropriate. However, traditional compound fertilizers and macroelement water-soluble fertiliz...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05G3/00C05G3/50A01G31/00
CPCA01G31/00C05B7/00C05G3/00C05G3/50C05C1/00C05C5/02C05C5/04C05D5/00C05D9/02Y02P60/21
Inventor 李蔚李新旭雷喜红李红岺王艳芳牛曼丽王冰华孙丹
Owner BEIJING AGRI TECH PROMOTION STATION
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