Method for improving yield and quality of potatoes by applying sargassum fusiforme alginic acid fertilizer

Abstract

The invention relates to a method for improving the yield and quality of potatoes by applying a sargassum fusiforme alginic acid fertilizer, which comprises the following steps of: applying the sargassum fusiforme alginic acid fertilizer once in root furrows in a sowing period; applying sargassum fusiforme alginic acid type fertilizer for drip irrigation per mu when seedlings emerge for 5-15 centimeters in the seedling stage; in the squaring stage, when 20-40% of potato buds appear, a sargassum fusiforme alginic acid type fertilizer is applied for drip irrigation per mu; in the blossom falling period, when the blossom falling amount reaches 60-80%, the sargassum fusiforme amino acid type fertilizer is sprayed on the leaf surfaces twice. The method has the advantages of improving soil and promoting root growth, improving stress resistance, relieving phytotoxicity, promoting crop nutrient absorption, delaying plant aging and increasing dry matter accumulation, thereby improving the yield and quality of potatoes.

Description

Technical Field

[0001] The invention relates to a method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer. Background Art

[0002] Potatoes are the world's third largest food crop and play a vital role in my country's food security. In recent years, with the gradual expansion of potato cultivation area and continuous cultivation of land, improving potato yield and quality has become a technical difficulty in the planting process.

[0003] Potato is an annual herbaceous plant of the genus Solanum in the Solanaceae family, and is also a tuber crop. During the growth of the plant, potatoes have a relatively large demand for fertilizers and are also sensitive to the soil environment. If the soil environment is not suitable for potato growth and fertilization is not timely or the fertilizer applied has a poor effect on soil improvement and the fertilizer efficiency cannot meet the needs of potato growth, it will have a serious impact on the yield and quality of potatoes. With the development of time, long-term excessive cultivation and unscientific fertilization have led to about 33% of the world's soil degradation, which is specifically manifested in soil acidification, salinization and soil compaction, which have a direct impact on the yield and quality of potatoes. The current existing solutions are the application of traditional compound fertilizers, organic fertilizers, microbial fertilizers and medium and trace element fertilizers, and the methods of use include spraying, flushing, drip irrigation and root irrigation, etc., but the effect has not been ideal. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein Sargassum fusiformis alginate fertilizer is applied once in the root furrow during the sowing period;

[0006] At the seedling stage, when the seedlings are 5-15 cm tall, apply Sargassum fusiformis alginate fertilizer per acre through drip irrigation;

[0007] At the budding stage, when the potato buds are 20-40%, apply Sargassum fusiformis alginate fertilizer per acre by drip irrigation;

[0008] During the flowering period, when the amount of flowers withered reaches 60-80%, spray the leaves with amino acid fertilizer of Sargassum fusiformis twice.

[0009] Furthermore, during the sowing period, apply the alginate fertilizer of Sargassum fusiformis to the root furrow once, with the amount of fertilizer being 500ml-2L per mu and the amount of water being 15-25 liters per mu.

[0010] Furthermore, when the seedlings emerge at a height of 10 cm in the seedling stage, 500 ml-2 L of alginate fertilizer is applied per mu of drip irrigation, the water consumption is 10-15 cubic meters of water, the drip irrigation dripper flow rate is 1.1-2 L / hour, and the drip irrigation time is 3.5-4.5 hours, so that the soil moisture content is maintained at 80%-85%.

[0011] Furthermore, in the budding stage, when 30% of the potato buds are in formation, 1L-2L of alginate fertilizer is applied per mu of drip irrigation, the water consumption is 10-20 cubic meters of water, the drip irrigation dripper flow is 1.1-2L / hour, and the required drip irrigation time is 4-6 hours, so that the soil moisture content is preferably maintained at 70%-80%.

[0012] Furthermore, during the withering period, when the withering amount reaches 70%, the leaves are sprayed with amino acid fertilizer of Sargassum fusiformis twice, 50-100 ml per mu each time, with an interval of 10-14 days between each spraying.

[0013] Furthermore, when spraying Sargassum fusiformis amino acid fertilizer, while ensuring the amount of fertilizer used, the amount of water sprayed is determined according to the size of the plant to ensure that the leaves of the plant are sprayed evenly and the front and back of the leaves are moistened.

[0014] Furthermore, the Sargassum fusiformis alginate type fertilizer is Golden Tianxi.

[0015] Furthermore, the amino acid type fertilizer of Sargassum fusiformis is Haiyoumei.

[0016] The beneficial effects of the present invention are as follows: the present technology adopts the Sargassum fusiformis alginate type fertilizer which can improve the soil environment, promote the growth of plant roots and plants, and improve the absorption and utilization rate of crop nutrients and the disease and stress resistance as the fertilizer for the nutrients required by potatoes, and the combination of the Sargassum fusiformis amino acid type fertilizer as a foliar fertilizer can improve the soil and promote root growth, improve stress resistance, alleviate pesticide damage, promote crop nutrient absorption, delay plant aging, and increase dry matter accumulation, thereby improving the yield and quality of potatoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Example 2 Root data analysis diagram.

[0018] Figure 2 Example 2: Data analysis diagram of potato stem.

[0019] Figure 3 Example 2 Analysis diagram of potato biological traits.

[0020] Figure 4 Example 2 Yield trait data analysis diagram.

[0021] Figure 5 Example 2 Experimental site map. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the present invention Figure 1-5 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Pharmacy: 1. Golden Tianxi (Registration Certificate No.: Agricultural Fertilizer (2021) No. 17531; Technical indicators: Sargassum fusiformis seaweed extract ≥ 500g / L, organic matter ≥ 300g / L, Mn+Zn+B content 20g / L-35g / L, dosage form is aqueous solution, developed and produced by Zhejiang Ishihara Jinniu Biotechnology Co., Ltd.

[0024] 2. Haiyoumei (Registration Certificate No.: Agricultural Fertilizer (2018) No. 12324; Implementation Standard: NY1429-2010; Technical Indicators: Sargassum fusiformis seaweed extract ≥ 500g / L, free amino acid ≥ 100g / L, Ca content ≥ 20g / L, Mg content ≥ 10g / L, dosage form is aqueous solution, developed and produced by Zhejiang Ishihara Jinniu Biotechnology Co., Ltd.

[0025] 3. Existing product 1: Technical indicators: organic matter content ≥ 200g / L, Ca+Mg content ≥ 5g / L, N+K2O ≥ 70g / L, dosage form is aqueous solution.

[0026] 4. Existing product 2: Technical indicators: amino acid content ≥ 100g / L, manganese content 12g / L, zinc content 12g / L, dosage form is aqueous solution.

[0027] Example 1 Reference Figure 1-5 , a method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein Sargassum fusiformis alginate fertilizer is applied once in the root furrow during the sowing period;

[0028] At the seedling stage, when the seedlings are 5-15 cm tall, apply Sargassum fusiformis alginate fertilizer per acre through drip irrigation;

[0029] At the budding stage, when the potato buds are 20-40%, apply Sargassum fusiformis alginate fertilizer per acre by drip irrigation;

[0030] During the flowering period, when the amount of flowers withered reaches 60-80%, spray the leaves with amino acid fertilizer of Sargassum fusiformis twice.

[0031] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein the Sargassum fusiformis alginate fertilizer is applied once in the root furrow during the sowing period, with the fertilizer dosage of 500 ml-2 L per mu and the water dosage of 15-25 liters per mu.

[0032] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein when seedlings emerge at a height of 10 centimeters in the seedling stage, Sargassum fusiformis alginate fertilizer is applied, with a fertilizer amount of 500 ml-2 L per mu, a water amount of 10-15 cubic meters of water, a drip irrigation dripper flow rate of 1.1-2 L / hour, and a drip irrigation time of 3.5-4.5 hours, so that the soil moisture content is preferably maintained at 80%-85%.

[0033] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein in the budding period, when 30% of the potato buds are formed, Sargassum fusiformis alginate fertilizer is applied, and the fertilizer amount per mu of drip irrigation is 1L-2L, the water amount is 10-20 cubic meters of water, the drip irrigation dripper flow is 1.1-2L / hour, the drip irrigation time is 4-6 hours, and the soil moisture content is preferably maintained at 70%-80%.

[0034] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein in the post-flowering period, when the amount of post-flowering reaches 70%, Sargassum fusiformis amino acid fertilizer is sprayed on the leaves twice, 50-100 ml per mu each time, with an interval of 10-14 days between each spraying.

[0035] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer. When spraying the Sargassum fusiformis amino acid fertilizer, the amount of water sprayed is determined according to the size of the plant while ensuring the amount of fertilizer used, so as to ensure that the leaves of the plant are sprayed evenly and the front and back of the leaves are moistened.

[0036] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein the Sargassum fusiformis alginate fertilizer is Golden Tianxi.

[0037] A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, wherein the Sargassum fusiformis amino acid fertilizer is Sea Youmei.

[0038] Golden Tianxi contains Sargassum fusiformis alginate and organic matter. In the field of Sargassum fusiformis raw materials, it is currently the world's newest fertilizer seaweed raw material, containing 43 kinds of nutrients. It is created through leading enzymatic hydrolysis technology and multifunctional composite bio-enzyme fermentation degradation precision controlled extraction process, and based on the soil degradation phenomenon, Golden Tianxi fertilizer can promote the formation of soil aggregate structure and improve soil physical fertility; stimulate soil microbial metabolism and supplement beneficial microorganisms; promote plant root and plant growth, and improve crop nutrient absorption and utilization rate and disease resistance and stress resistance.

[0039] Haiyoumei contains Sargassum fusiformis seaweed extract and amino acids, which have good spreading and adhesion properties and are conducive to nutrient absorption. Haiyoumei is rich in endogenous active substances that can effectively promote cell repair, enable crops to quickly recover under adverse conditions, delay plant aging, and increase dry matter accumulation.

[0040] This technology uses Golden Tianxi, which can improve the soil environment, promote plant root and plant growth, and increase crop nutrient absorption and utilization rate and disease and stress resistance, as the fertilizer for the nutrients needed by potatoes. Combined with the foliar fertilizer Haiyoumei, it can improve soil and promote root growth, improve stress resistance, alleviate pesticide damage, promote crop nutrient absorption, delay plant aging, increase dry matter accumulation, and improve potato yield and quality.

[0041] Example 2 Reference Figure 1-5 ,

[0042] In the experimental area, fertilization was carried out by furrow application, drip irrigation and foliar spraying, and fixed-point sampling surveys were conducted.

[0043] Golden Tianxi was selected for furrow application during the potato sowing period, and drip irrigation was carried out when the seedlings emerged at a height of 10 cm and during the budding period. The variety was Atlantic. Fertilization was applied five times on April 27, May 28, June 18, July 15, and July 26. After fertilization, a root index survey was conducted on June 15 when the potatoes were clustered, investigating two indicators: root length and root weight; an above-ground index survey was conducted after the flowering period ended on August 10, investigating four indicators: chlorophyll, stem number, stem diameter, and plant height; a yield index survey was conducted when the potatoes were dug on September 24, investigating eight indicators: the number of potatoes per mu, single potato weight, per mu potato weight, the number of commercial potatoes (diameter 7.5 cm and above), commercial potato weight, non-commercial potato number, non-commercial potato weight, and dry matter content, in order to calculate the potato yield increase rate, dry matter content growth rate, per mu potato growth rate, single potato weight growth rate, and commercial rate.

[0044] The survey method was a 5-point sampling method, where 30 potato plants were randomly selected for data measurement;

[0045] Use a ruler to measure the root length and plant height of potatoes;

[0046] The potato roots were weighed using an electronic scale;

[0047] The chlorophyll content of leaves was measured using a chlorophyll meter;

[0048] The thickness of potato main stem was measured with vernier caliper;

[0049] One person was asked to record the number of potato stems above ground;

[0050] The yield and commercial survey adopted a 5-point sampling method for each treatment. Ten mu of test land was randomly selected at each point of the potato experimental base to conduct yield measurement and other related data surveys, and the survey data were scientifically processed and analyzed.

[0051] The experimental fertilizer scheme uses the fertilizer scheme of Ishihara Jinniu Biotechnology Co., Ltd. (referred to as "biotechnology fertilizer scheme" or "biotechnology scheme"), the base fertilizer scheme and the clear water control for comparison. The experimental design has 5 treatments, 2 treatments of the biotechnology fertilizer scheme, 2 treatments of the base fertilizer scheme, and 1 blank control. The specific experimental fertilization scheme is as follows:

[0052] Trial plan

[0053]

[0054]

[0055] During the sowing period, Golden Field likes to apply fertilizer once in the root furrow, with 1L of fertilizer per mu and 20 liters of water per mu.

[0056] During the seedling stage, when the seedlings are 10 cm tall, apply 500 ml of Golden Tianxi fertilizer per mu through drip irrigation, with a water consumption of 10 cubic meters of water. The flow rate of the drip irrigation dripper is 1.1-2L / hour, and the required drip irrigation time is 4 hours. The soil moisture content should be maintained at 80%-85%.

[0057] During the budding period, when 30% of the potato buds appear, apply Golden Tianxi drip irrigation fertilizer at a rate of 1L per mu and 15 cubic meters of water. When the flow rate of the drip irrigation emitter is 1.1-2L / hour, the drip irrigation time is 6 hours, and the soil moisture content is preferably maintained at 70%-80%.

[0058] During the flowering period, when the amount of flowers withered reaches 70%, spray Haiyoumei on the leaves twice, 50 ml per mu each time, with an interval of 11 days between each spray. While ensuring the amount of fertilizer used, the amount of water sprayed is determined according to the size of the plant to ensure that the leaves of the plants are sprayed evenly and the front and back of the leaves are moist.

[0059] Results Analysis

[0060] Effects of different treatments on biological yield traits of potato

[0061] (1) Based on root data analysis Figure 1 Analysis showed that the root length growth rate of one treatment was 29.4%, the root length growth rate of treatment two was 30.2%, the root length growth rate of treatment three was 19.6%, the root length growth rate of treatment four was 20.2%, among which the root length growth rate of treatment two was the highest at 30.2%, which was 10% higher than the control treatment four; the root weight growth rate of one treatment was 20.7%, the root weight growth rate of treatment two was 20.8%, the root weight growth rate of treatment three was 13.4%, the root weight growth rate of treatment four was 13%, among which the root weight growth rate of treatment two was the highest at 20.8%, which was 7.4% higher than the control treatment three.

[0062] There was almost no difference in root length and root weight between treatments 1 and 2 of the biotechnology solution, and there was almost no difference in root length and root weight between treatments 3 and 4 of the base fertilizer solution, but the average root length growth rate of the biotechnology solution was 9.9% higher than that of the base fertilizer solution, and the average root weight of the biotechnology solution was 7.55% higher than that of the base fertilizer solution. These data show that the biotechnology solution can promote the growth and development of potato roots, thereby promoting fertilizer absorption and utilization.

[0063] (2) Based on potato stem data analysis Figure 2 Analysis showed that the growth rate of the aboveground stem number of potatoes in treatment one was 6.1%, the growth rate of the aboveground stem number of potatoes in treatment two was 8.8%, the growth rate of the aboveground stem number of potatoes in treatment three was 2.6%, and the growth rate of the aboveground stem number of potatoes in treatment four was 5.3%, among which the growth rate of the aboveground stem number of potatoes in treatment two was the highest at 8.8%. The growth rate of the stem diameter of potatoes in treatment one was 16.3%, the growth rate of the stem diameter of potatoes in treatment two was 19.3%, the growth rate of the stem diameter of potatoes in treatment three was 12.3%, and the growth rate of the stem diameter of potatoes in treatment four was 13.4%, among which the growth rate of the stem diameter of potatoes in treatment two was the highest at 19.3%.

[0064] The average growth rate of the aboveground stems of potatoes treated with the biotechnology program was 7.45%, and the average growth rate of the aboveground stems of potatoes treated with the base fertilizer program was 3.95%. The average growth rate of the aboveground stems of potatoes treated with the biotechnology program was 3.5% higher than that of the base fertilizer program; the average growth rate of the stem diameter of potatoes treated with the biotechnology program was 17.8%, and the average growth rate of the stem diameter of potatoes treated with the base fertilizer program was 12.85%. The average growth rate of the stem diameter of potatoes treated with the biotechnology program was 4.95% higher than that of the base fertilizer program.

[0065] (3) Analysis based on potato biological trait data Figure 3 Analysis shows that the chlorophyll growth rate of treatment one is 19%, the chlorophyll growth rate of treatment two is 26.2%, the chlorophyll growth rate of treatment three is 9.8%, and the chlorophyll growth rate of treatment four is 14.5%. Among them, the chlorophyll growth rate of treatment two is the highest at 26.2%. The average chlorophyll growth rate of potatoes treated with the biotechnology solution is 22.6%, and the average chlorophyll growth rate of potatoes treated with the base fertilizer solution is 12.15%. The average chlorophyll growth rate of potatoes treated with the biotechnology solution is 10.45% higher than that of the base fertilizer solution. The plant height growth rate of treatment one is 17.4%, the plant height growth rate of treatment two is 26.6%, the plant height growth rate of treatment three is 6%, and the plant height growth rate of treatment four is 10.3%. Among them, the plant height growth rate of treatment two is the highest at 26.6%.

[0066] The average growth rate of potato plant height in the biotechnology treatment was 22%, and the average growth rate of potato plant height in the base fertilizer treatment was 8.15%. The average growth rate of potato plant height in the biotechnology treatment was 13.85% higher than that in the base fertilizer treatment.

[0067] (4) Analysis based on potato biological trait data Figure 4 Analysis showed that the yield increase rate of potatoes in treatment one was 33.5%, the yield increase rate of potatoes in treatment two was 37.4%, the yield increase rate of potatoes in treatment three was 20.5%, and the yield increase rate of potatoes in treatment four was 25.6%, among which the yield increase rate of potatoes in treatment two was the highest at 37.4%.

[0068] The average yield increase of potatoes treated with the biotechnology solution was 35.45%, and the average yield increase of potatoes treated with the base fertilizer solution was 23.05%. The average yield increase of potatoes treated with the biotechnology solution was 12.4% higher than that of potatoes treated with the base fertilizer solution.

[0069] The growth rate of dry matter content of potatoes in treatment one was 17.8%, the growth rate of dry matter content of potatoes in treatment two was 18.9%, the growth rate of dry matter content of potatoes in treatment three was 8.9%, and the growth rate of dry matter content of potatoes in treatment four was 14.3%, among which the growth rate of dry matter content of potatoes in treatment two was the highest at 18.9%.

[0070] The average dry matter content growth rate of potatoes treated with the biotechnology solution was 18.35%, and the average dry matter content growth rate of potatoes treated with the base fertilizer solution was 11.6%. The average dry matter content growth rate of potatoes treated with the biotechnology solution was 6.75% higher than that of potatoes treated with the base fertilizer solution.

[0071] The potato yield growth rate per mu in treatment one was 1.7%, the potato yield growth rate per mu in treatment two was 1.3%, the potato yield growth rate per mu in treatment three was -0.1%, and the potato yield growth rate per mu in treatment four was 0.2%. There was almost no difference in the potato yield growth rate per mu between treatment one and treatment two, and there was almost no difference in the potato yield growth rate per mu between treatment three and treatment four.

[0072] The average potato yield per mu of potatoes treated with the biotechnology solution was 1.5%, and the average potato yield per mu of potatoes treated with the base fertilizer solution was 0.05%. The average potato yield per mu of potatoes treated with the biotechnology solution was 1.45% higher than that of potatoes treated with the base fertilizer solution.

[0073] The growth rate of single potato weight in treatment one was 31.2%, that in treatment two was 35.7%, that in treatment three was 20.6%, that in treatment four was 25.3%, among which the growth rate of single potato weight in treatment two was the highest at 35.7%.

[0074] The average growth rate of single potato weight of potatoes treated with the biotechnology solution was 33.45%, and the average growth rate of single potato weight of potatoes treated with the base fertilizer solution was 22.95%. The average growth rate of single potato weight of potatoes treated with the biotechnology solution was 10.5% higher than that of potatoes treated with the base fertilizer solution.

[0075] According to the analysis in Table 1, the commodity rate of potatoes in treatment one was 84.6%, the commodity rate of potatoes in treatment two was 87.3%, the commodity rate of potatoes in treatment three was 74.7%, the commodity rate of potatoes in treatment four was 76.3%, and the commodity rate of potatoes in treatment five was 61.6%. Among them, the commodity rate of potatoes in treatment two was the highest at 87.3%. The average commodity rate of potatoes treated with the biotechnology scheme was 85.95%, and the average commodity rate of potatoes treated with the base fertilizer scheme was 75.5%. The average commodity rate of potatoes treated with the biotechnology scheme was 10.45% higher than that of potatoes treated with the base fertilizer scheme.

[0076] Potato experiment data analysis table 1

[0077] Processing / Indicators Yield increase Dry matter content growth rate Growth rate of potato yield per mu Single potato weight growth rate Product rate Processing 1 33.5％ 17.8％ 1.7％ 31.2％ 84.6％ Processing 2 37.4％ 18.9％ 1.3％ 35.7％ 87.3％ Processing three 20.5％ 8.9％ -0.1％ 20.6％ 74.7％ Processing Four 25.6％ 14.3％ 0.2％ 25.3％ 76.3％ Processing Five — — — — 61.6％

[0078] The above data analysis shows that the average root length growth rate of the biotechnology treatment is 9.9% higher than that of the base fertilizer treatment, and the average root weight of the biotechnology treatment is 7.55% higher than that of the base fertilizer treatment. The average growth rate of the aboveground potato stems of the biotechnology treatment is 3.5% higher than that of the base fertilizer treatment. The average growth rate of the potato stem diameter of the biotechnology treatment is 4.95% higher than that of the base fertilizer treatment. The average growth rate of the potato chlorophyll of the biotechnology treatment is 10.45% higher than that of the base fertilizer treatment. The average growth rate of the biotechnology treatment is 10.45% higher than that of the base fertilizer treatment. The growth rate of potato plant height in the fertilizer scheme was 13.85% higher; the average yield increase rate of the biotechnology scheme was 12.4% higher than that of the base fertilizer scheme; the average dry matter content growth rate of the biotechnology scheme was 6.75% higher than that of the base fertilizer scheme; the average potato per mu growth rate of the biotechnology scheme was 1.45% higher than that of the base fertilizer scheme; the average single potato weight growth rate of the biotechnology scheme was 10.5% higher than that of the base fertilizer scheme; the average commodity rate of the biotechnology scheme was 10.45% higher than that of the base fertilizer scheme. Treatment 2, Golden Tianxi + Haiyoumei, had the most obvious improvement in potato yield and commodity rate.

[0079] Conclusion

[0080] The experimental study shows that applying Golden Tianxi to potato roots and spraying Haiyoumei on leaves can promote the growth of potato roots and plants, improve fertilizer utilization and stress resistance, significantly increase the chlorophyll content of potato leaves, promote photosynthetic efficiency, and thus increase the accumulation of dry matter. It can effectively increase the potato yield rate by 12.4% and the commodity rate by 10.45%, thereby improving the potato production efficiency and safeguarding the high-quality sustainable development of the potato industry. Potato test data analysis table 2

[0081]

[0082] Potato test data analysis table 3

[0083]

[0084] Potato test data examination table 4

[0085]

[0086]

[0087] Potato test data examination table 5

[0088]

[0089]

[0090] Potato test data examination table 6

[0091]

[0092]

[0093] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer, Features :During the sowing period, apply Sargassum fusiformis alginate fertilizer once in the root groove; At the seedling stage, when the seedlings are 5-15 cm tall, apply Sargassum fusiformis alginate fertilizer per acre through drip irrigation; At the budding stage, when the potato buds are 20-40%, apply Sargassum fusiformis alginate fertilizer per acre by drip irrigation; During the flowering period, when the amount of flowers withered reaches 60-80%, spray the leaves with amino acid fertilizer of Sargassum fusiformis twice.

2. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 1, Features: During the sowing period, apply Sargassum alginate fertilizer once in the root trench, with the fertilizer dosage of 500ml-2L per mu and the water dosage of 15-25 liters per mu.

3. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 1, Features: When the seedlings emerge at a height of 10 cm, apply 500 ml-2 L of alginate fertilizer per mu of Sargassum via drip irrigation, with a water consumption of 10-15 cubic meters of water, a drip irrigation head flow of 1.1-2 L / hour, and a drip irrigation time of 3.5-4.5 hours to keep the soil moisture content at 80%-85%.

4. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 1, Features: During the budding period, when 30% of the potato buds are in formation, apply 1L-2L of alginate fertilizer per mu of Sargassum fusiformis, use 10-20 cubic meters of water, and the flow rate of the drip irrigation emitter is 1.1-2L / hour. The drip irrigation time is 4-6 hours, so that the soil moisture content is preferably maintained at 70%-80%.

5. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 1, Features: During the flowering period, when the amount of flowers withered reaches 70%, spray the leaves with amino acid fertilizer twice, 50-100 ml per mu each time, with an interval of 10-14 days between each spraying.

6. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 5, Features: When spraying amino acid fertilizer on Sargassum fusiformis, while ensuring the amount of fertilizer used, the amount of water sprayed should be determined according to the size of the plant to ensure that the leaves of the plant are sprayed evenly and the front and back of the leaves are moistened.

7. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 2, Features: The seaweed alginate type fertilizer is Golden Tianxi.

8. A method for improving potato yield and quality by applying Sargassum fusiformis alginate fertilizer according to claim 2, Features: The amino acid type fertilizer of Sargassum fusiformis is Haiyoumei.

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