A kind of full-nutrient soilless culture medium suitable for eggplant and its preparation method and application

A soilless cultivation substrate and cultivation substrate technology, applied in the field of total nutrient soilless cultivation substrate and its preparation, can solve the problems of high cost, plant burning, laborious and laborious, etc., achieve convenient operation, strong and developed root system, and ensure scientific sexual effect

Active Publication Date: 2017-06-23
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the fertilizers in the existing cultivation substrates on the market cannot meet the needs of the entire growth period of the crops. Therefore, it is necessary to continuously topdress the fertilizer during the cultivation process, or use a more expensive nutrient solution cultivation system to irrigate the vegetable-specific nutrient solution, which costs a lot of money. laborious
The growth process of vegetable crops requires a lot of fertilizers, but if the N fertilizer required by the crops is added to the substrate, it will cause the phenomenon of plant burning

Method used

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  • A kind of full-nutrient soilless culture medium suitable for eggplant and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An eggplant organic cultivation substrate using cassava residue as the main raw material: the volume parts of fermented cassava residue, peat and vermiculite are 50, 25 and 25 parts respectively.

[0031] The bulk density of the matrix is ​​0.43g / cm 3 , The total porosity is 65.5%, the water-holding porosity is 38.6%, the EC is 780.67μs / cm, and the pH is 6.46. Total N content 5.73g / kg, total P content 4.88g / kg, total K content 14.31g / kg, quick-acting N content 1.06g / kg, quick-acting P content 0.56g / kg, quick-acting K content 0.74g / kg, organic matter content 15.18%.

Embodiment 2

[0033] An eggplant organic cultivation substrate using cassava residue as the main raw material: the volume parts of fermented cassava residue and peat are respectively 50 parts and 50 parts.

[0034] The bulk density of the matrix is ​​0.32g / cm 3 , The total porosity is 64.2%, the water holding porosity is 47.7%, the EC is 979.33μs / cm, and the pH is 5.57. Total N content 19.07g / kg, total P content 4.10g / kg, total K content 6.31g / kg, quick-acting N content 1.65g / kg, quick-acting P content 0.56g / kg, quick-acting K content 1.52g / kg, organic matter content 75.80%.

Embodiment 3

[0036] An eggplant organic cultivation substrate using cassava residue as the main raw material: the volume parts of fermented cassava residue and vermiculite are 75 parts and 25 parts respectively.

[0037] The bulk density of the matrix is ​​0.43g / cm 3 , The total porosity is 66.4%, the water holding porosity is 43.2%, the EC is 970.67μs / cm, and the pH is 7.15. Total N content 7.03g / kg, total P content 5.47g / kg, total K content 16.97g / kg, quick-acting N content 1.29g / kg, quick-acting P content 0.54g / kg, quick-acting K content 0.98g / kg, organic matter content 17.66%.

[0038] The suitable bulk density of soilless culture substrate is 0.5g / cm 3 The total porosity is between 60% and 80%, the EC value should be less than 2000 μs / cm, and the pH value should be around 6.0 (Zhu Shidong et al., 2000). The bulk density of cassava residue is 0.395g / cm 3 , The total porosity is low, the pH is high, it needs to be mixed with other substrates to comprehensively improve its physical and chemi...

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Abstract

The invention discloses a total nutrient soilless culture matrix suitable for eggplants and a preparation method and application thereof. The matrix contains an organic culture substrate, an inorganic fertilizer and a water retaining agent; wherein the organic culture substrate comprises 50-75 parts by volume of fermented cassava residue, 0-50 parts by volume of peat and 0-35 parts by volume of vermiculite; the inorganic fertilizer is composed of urea, inorganic phosphate fertilizer and inorganic potash fertilizer, and the urea is absorbed by the water retaining agent, and then is added into the organic culture substrate. By preparation of a vegetable cultivation substrate from the cassava residue as a raw material, the problem of environmental pollution caused by the waste cassava residue can be effectively solved to achieve re-use of resources. The total nutrient soilless culture matrix creatively uses the water retaining agent to absorb the urea and then adds the urea into the organic culture substrate to guarantee slow release of the absorbed N fertilizer (urea) to provide plant growth needs, also decreases N fertilizer loss, improves the utilization rate of the N fertilizer, ensures the scientific use of fertilizers, and reduces environment pollution.

Description

Technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a complete nutrient soilless culture substrate suitable for eggplants, and a preparation method and application thereof. Background technique [0002] Although the research and promotion of soilless culture in my country only emerged in the middle and late 1980s, it has developed rapidly. According to incomplete statistics, the national soilless cultivation area has exceeded 200hm 2 . The research and promotion in my country is mainly nutrient solution soilless cultivation, all of which are irrigated with nutrient solution prepared by chemical fertilizers. The technical requirements for nutrient solution management and root oxygen supply are high and the operation is difficult; and supporting auxiliary equipment such as cultivation tanks and timers , Water pumps and other inputs are expensive. These factors have seriously hindered the development of soilless cul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/06C05G3/70
CPCC05B17/00C05G3/90C05C9/00C05D1/00C05D9/00C05F5/008
Inventor 高文瑞徐刚李德翠孙艳军韩冰史珑燕
Owner JIANGSU ACAD OF AGRI SCI
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