• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A compound fertilizer for improving nutritional qual— ity of lettuce is provided. The compound fertilizer comprises an organic fertilizer and an inorganic mixed powder; wherein the organic fertilizer, by weight parts, comprises: 200—300 parts of Hericium erinaceus slag, 150—200 parts of copra, 10— 30 parts of Humic acid, 4—6 parts of sucrose, and 0.5—1 parts of Bacillus subtilis. The inorganic mixed powder is consisted of urea powder, calcium magnesium phosphate powder, and potas— sium ore powder having a mass ratio of l:l.2:l.5. After use, the nitrate content in leaves and petioles of lettuce is de— creased significantly, and the content of ascorbic acid and soluble sugar in leaves is increased significantly.
    公开号:NL2023363A
    申请号:NL2023363
    申请日:2019-06-24
    公开日:2020-10-02
    发明作者:Zhong Fenglin；Lin Zhiyuan；Shang Chunyu；Hou Maomao
    申请人:Univ Fujian Agriculture & Forestry；
    IPC主号:
    专利说明:

    [0001] [0001] The subject matter herein relates to a technical filed of vegetable cultivation, and in particularly relates to a compound fertilizer for improving nutritional quality of lettuce and application method thereof.BACKGROUND
    [0002] [0002] Lettuce is an annual plant of the daisy family, Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds food, such as soups, sandwiches and wraps; it can also be grilled. One variety, asparagus lettuce (celtuce), is grown for its stems, which are eaten either raw or cooked. In addition to its main use as leafy green, it has also gathered religious and medici- nal significance over centuries of human consumption. Europe and North America originally dominated the market for lettuce, but by the late 20th century the consumption of lettuce had spread throughout the world, especially China. In recent years, the cultivation for lettuce has grown so much and leads the lettuce to the dinner table of ordinary family or hotel.
    [0003] [0003] However, due to soil microbial imbalance and nitro- gen nutrition imbalance, the nitrate content of soil cultured lettuce exceeds the standard, which affects the nutritional quality of lettuce and easily causes food safety problems.SUMMARY
    [0004] [0004] In order to address the aforementioned problems, the disclosure provides a compound fertilizer for improving nutri- tional quality of lettuce and application method thereof. The use of the provided compound fertilizer greatly reduces the nitrate content of the leaves and petioles of the lettuce, and significantly improves the ascorbic acid and soluble sugar content of the leaves.
    [0005] [0005] To achieve the object, the present disclosure adopts the following technical solutions.
    [0006] [0006] A compound fertilizer for improving nutritional quality of lettuce is provided. The compound fertilizer com- prises an organic fertilizer and an inorganic mixed powder; wherein the organic fertilizer, by weight parts, comprises: 200-300 parts of Hericium erinaceus slag, 150-200 parts of copra, 10-30 parts of Humic acid, 4-6 parts of sucrose, and
    [0007] [0007] The method for applying the above compound ferti- lizer includes the following steps.
    [0008] [0008] (1) Preparation of the organic fertilizer: evenly mixing the 200-300 parts of Hericium erinaceus slag, 150-200 parts of copra, 10-30 parts of Humic acid, 4-6 parts of su- crose, and 0.5-1 parts of Bacillus subtilis to form a first mixture; stacking the first mixture for 20-30 days, and per- forming a overturn to the first mixture every 5 days, and reg- ulating the volumetric moisture content of the first mixture at 60%; after the fermentations is completed, stirring the first mixture by a mixer, and then granulating by a granulator to form an organic fertilizer granule having lcm size.
    [0009] [0009] (2) Preparation of the compound fertilizer: mixing uniformly the urea powder, the calcium magnesium phosphate powder and the potassium ore powder in a ratio of 1:1.2:1.5 to form an inorganic mixed powder; placing the fertilizer gran- ules obtained in the step (1) in the inorganic mixed powder to obtain a second mixture, and mixing the second mixture uni- formly to make the surface of the fertilizer granules cover with the inorganic powder and make a compound fertilizer.
    [0010] [0010] (3) Application of the compound fertilizer: the base fertilizer is applied by acupoint application method, wherein after applying the fertilizer, the surface of the fertilizer is covered with soil having 2cm thick to prevent tip burn be- cause of the roots from directly contacting with the inorganic powder; top dressing for the lettuce in the rosette stage is carried out by using the mixed organic fertilizer prior to the organic fertilizer granule. The topdressing is carried out by broadcast distribution. After the top dressing, the Dvordo mi- crobial liquid microbial agent is sprayed on the fertilizer surface and about the root system to cure nutrients in the fertilizer, promote plant absorption. A mass ratio of the base fertilizer to the top dressing is 1:1.
    [0011] [0011] (4) Irrigation: the drip irrigation is adopted to control the lower limit of soil moisture content to 67% in the seedling stage; the micro-sprinkler irrigation is adopted to control the lower limit of moisture content to 80% in the ro- sette stage.
    [0012] [0012] The invention has the advantages as follows: the present invention provides a compound fertilizer for improving the nutritional quality of lettuce. After use, the nitrate content in leaves and petioles of lettuce is decreased signif- icantly, and the content of ascorbic acid and soluble sugar in leaves 1s increased significantly. The organic fertilizer aims to balance the soil microflora and supply various trace ele- ments. However, the organic fertilizer provides little pure nutrient content. Inorganic fertilizer is used to provide higher pure nutrient content and promote the rapid growth and yield formation for the plants. The organic fertilizer helps to improve the quality, especially in reducing nitrates and increasing soluble sugars. .DETAILED DESCRIPTION OF THE INVENTION
    [0013] [0013] The present disclosure will be further described in detail below with reference to the drawings and specific em- bodiments, in order to better understand the objective, the technical solution and the advantage of the present disclo- sure. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of the disclosure.
    [0014] [0014] The experiment used purple leaf lettuce, and the greenhouse cultivation experiment was carried out during September to October, 2017.
    [0015] [0015] A compound fertilizer for improving nutritional qual- ity of lettuce is provided. The compound fertilizer comprises an organic fertilizer and an inorganic mixed powder; wherein the organic fertilizer, by weight parts, comprises: 250 parts of Hericium erinaceus slag, 180 parts of copra, 20 parts of Humic acid, 5 parts of sucrose, and 0.8 parts of Bacillus sub- tilis. The inorganic mixed powder is consisted of urea powder, calcium magnesium phosphate powder, and potassium ore powder having a mass ratio of 1:1.2:1.5.
    [0016] [0016] The method for applying the compound fertilizer in- cludes the following steps.
    [0017] [0017] (1) Preparation of the organic fertilizer: evenly mixing the 250 parts of Hericium erinaceus slag, 180 parts of copra, 20 parts of Humic acid, 5 parts of sucrose, and 0.8 parts of Bacillus subtilis to form a first mixture; stacking the first mixture for 25 days, performing a overturn to the first mixture every 5 days, and regulating the volumetric moisture content of the first mixture at 60%; after the fer- mentations is completed, stirring the first mixture by a mixer, and then granulating by a granulator to form organic fertilizer granules each having a size of lcm.
    [0018] [0018] (2) Preparation of the compound fertilizer: mixing uniformly the urea powder, the calcium magnesium phosphate powder, and the potassium ore powder in a ratio of 1:1.2:1.5 to form an inorganic mixed powder; placing the organic ferti- lizer granules obtained from the step (1) into the inorganic mixed powder to obtain a second mixture, and mixing the second mixture uniformly to make the surface of the organic ferti- lizer granules cover with the inorganic powder and make a com- pound fertilizer.
    [0019] [0019] (3) Application of the compound fertilizer: the base fertilizer is applied by acupoint application method, wherein after applying the fertilizer, the surface of the fertilizer is covered with soil having 2cm thick to prevent tip burn be- cause of the roots from directly contacting with the inorganic powder; top dressing for the lettuce in the rosette stage is carried out by using the mixed organic fertilizer prior to the organic fertilizer granule. The topdressing is carried out by broadcast distribution. After the top dressing, the Dvordo mi- crobial liquid microbial agent is sprayed on the fertilizer surface and about the root system to cure nutrients in the fertilizer, promote plant absorption. A mass ratio of the base fertilizer to the top dressing is 1:1.
    [0020] [0020] (4) Irrigation: the drip irrigation is adopted to control the lower limit of soil moisture content to 673 in the 5 seedling stage; the micro-sprinkler irrigation is adopted to control the lower limit of moisture content to 80% in the ro- sette stage.
    [0021] [0021] Comparative Example 1 used the conventional ferti- lizer and applied the conventional fertilizer by the fertili- zation method of Example 1. Comparative Example 2 used the compound fertilizer from Example 1, but substituted the irri- gation in step (4) with conventional irrigation. The nitrate content in the petiole of the lettuce leaves and the ascorbic acid content and the scluble sugar content in the leaves of the lettuce in Example 1, Comparative Example 1, and Compara- tive Example 2 were measured respectively, and the results are shown in the following Table 1. As shown in Table 1, it can be seen that the nitrate content of the leaves and petioles of the lettuce obtained by the present invention is significantly reduced, and the contents of ascorbic acid and soluble sugar in the leaves are significantly increased.
    [0022] [0022] Table 1 Quality Parameters Treatment Nitrate of Leaves Nitrate of Peticles Ascorbic Acid Soluble Sugar en | Mee | Serer “wees Comparative 470a 248a 0.02b 8.9¢c eme | Comparative 458a 210b 0.03b 10.6b
    [0023] [0023] The aforementioned disclosure are only the preferred embodiments of the present invention. All modifications and changes made within the spirit of the present invention should fall within the scope of the present invention. Aspects of the invention are itemized in the following sec- tion.
    1. A compound fertilizer for lettuce, characterized by com- prising an organic fertilizer, and an inorganic mixed powder; wherein the organic fertilizer, by weight parts, com- prises: 200-300 parts of Hericium erinaceus slag, 150-200 parts of copra, 10-30 parts of Humic acid, 4-6 parts of sucrose, and 0.5-1 parts of Bacillus subtilis; the inor- ganic mixed powder is consisted of urea powder, calcium magnesium phosphate powder, and potassium ore powder hav- ing a mass ratio of 1:1.2:1.5.
    2. The compound fertilizer of claim 1, characterized in that the organic fertilizer and the inorganic mixed powder has a mass ratio of 30:1.
    3. The compound fertilizer of claim 1, characterized by com- prising the following steps: (1) preparation of the organic fertilizer: evenly mixing the 200-300 parts of Hericium erinaceus slag, 150-200 parts of copra, 10-30 parts of Humic acid, 4-6 parts of sucrose, and 0.5-1 parts of Bacillus subtilis to form a first mixture; stacking the first mixture for 20-30 days, and performing a overturn to the first mixture every 5 days, and regulating the volumetric moisture content of the first mixture; after the fer- mentations is completed, stirring the first mixture by a mixer, and then granulating by a granulator to form an organic fertilizer granule; (2) preparation of the compound fertilizer: mixing uni- formly the urea powder, the calcium magnesium phos- phate powder and the potassium ore powder in a ratio of 1:1.2:1.5 to form an inorganic mixed powder; plac- ing the fertilizer granules obtained in the step (1) in the inorganic mixed powder to obtain a second mix- ture, and mixing the second mixture uniformly to make the surface of the fertilizer granules cover with the inorganic powder and make a compound fertilizer.
    (3) application of the compound fertilizer: applying the base fertilizer by acupoint application method; wherein after applying the fertilizer, the surface of the fertilizer is covered with soil having 2cm thick to prevent tip burn because of the roots from directly contacting with the inorganic powder; carry- ing out a top dressing for the lettuce in the rosette stage by using the mixed organic fertilizer prior to the organic fertilizer granule; after the top dress- ing, spraying the Dvordo microbial liquid microbial agent on the fertilizer surface and about the root system to cure nutrients in the fertilizer, and pro- moting plant absorption; (4) irrigation: adopting a drip irrigation to control the lower limit of soil moisture content to 67% in the seedling stage; and adopting the micro-sprinkler ir- rigation to control the lower limit of moisture con- tent to 80% in the rosette stage.
    4. The compound fertilizer of claim 2, characterized in that the volumetric moisture content in step (1) was regulated to 60%; the organic fertilizer granule has a size of 1 cm.
    5. The compound fertilizer of claim 2, characterized in that a mass ratio of the base fertilizer to the top dressing is 1:1.
    权利要求:
    Claims (5)
    [1]
    A lettuce compound fertilizer characterized by comprising an organic fertilizer and an inorganic mixed powder; wherein the organic fertilizer comprises, by parts by weight: 200-300 parts Hericium erinaceus snail, 150-200 parts copra, 10-30 parts humic acid, 4-6 parts sucrose, and 0.5-1 parts Bacillus subtilis; wherein the inorganic mixed powder is composed of urea powder, calcium magnesium phosphate powder, and potassium ore powder having a mass ratio of 1: 1.2: 1.5.
    [2]
    Compound fertilizer according to claim 1, characterized in that the organic fertilizer and the inorganic mixed powder have a mass ratio of 30: 1.
    [3]
    A compound fertilizer according to claim 1, characterized by comprising the following steps: (1) preparing the organic fertilizer: evenly mixing the 200-300 parts Hericium erinaceus snail, 150-200 parts copra, 10-30 parts humic acid, 4-6 parts sucrose, and 0.5-1 parts Bacillus subtilis to form a first mixture; stacking the first mixture for 20-30 days, and performing an inversion of the first mixture every 5 days, and regulating the volumetric moisture content of the first mixture; after the fermentation is completed, stirring the first mixture with a stirrer, and then granulating it with a granulator to form an organic fertilizer pellet; (2) preparing the compound fertilizer: evenly mixing the urea powder, the calcium magnesium phosphate powder and the potassium ore powder in a ratio of 1: 1.2: 1.5 to form an inorganic mixed powder ; placing the fertilizer granules obtained in step (1) in the inorganic mixed powder to obtain a second mixture, and evenly mixing the second mixture to cover the surface of the fertilizer granule with the inorganic powder to form a compound fertilizer to manufacture;
    (3) applying the compound fertilizer: applying the basic fertilizer by acupoint application method, wherein after fertilizer application, the surface of the fertilizer is covered with soil with 2 cm thickness to prevent burning due to the roots that come into direct contact with the inorganic powder; coating the rosette stage lettuce by using the mixed organic fertilizer prior to the organic fertilizer pellet; after the cover layer, spraying the Dvordo-microbial-liquid microbial agent on the fertilizer surface and around the root system to dissolve nutrients in the fertilizer, and promote plant absorption; (4) irrigation: deploying drip irrigation to control the lower threshold of soil moisture content at the seedling stage at 67%; and deploying micro sprinkler irrigation to maintain the lower moisture threshold at 80% at the rosette stage.
    [4]
    Composite fertilizer according to claim 2, characterized in that the volumetric moisture content in step (1) was regulated at 60%; wherein the organic fertilizer granule has a size of 1 cm.
    [5]
    Composite fertilizer according to claim 2, characterized in that a mass ratio of the basic fertilizer to the cover layer is 1: 1.
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    法律状态:
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