Watermelon fruit-preserving foliar fertilizer and preparation method and use method thereof
By preparing and using watermelon fruit-preserving foliar fertilizer, which contains ingredients such as sodium nitrophenolate, 2,4-D, naphthaleneacetic acid, sodium alginate and potassium humate, the problem of low fruit set rate of watermelon was solved, and the effects of high fruit set rate and high yield were achieved.
Patent Information
- Application Number
- CN202310366843.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-07
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2043-04-07
AI Technical Summary
The low fruit set rate of watermelon is mainly affected by climate, nutrition and water factors. Existing technologies are difficult to effectively promote reproductive growth, resulting in low fruit set rate and high deformity rate.
A watermelon fruit-preserving foliar fertilizer is used, which contains ingredients such as sodium nitrophenolate, 2,4-D, naphthylacetic acid, sodium alginate and potassium humate. It is prepared by mixing under specific temperature and stirring conditions, and then diluted and sprayed on the leaves or fruit surface to promote the reproductive growth of watermelon.
It significantly improved the fruit setting rate of watermelon, reduced the deformity rate, and increased the yield per mu. The average fruit setting rate reached 96.4%, the deformity rate dropped to 1.9%, and the yield per mu reached 7501 kg.
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of watermelon cultivation, and in particular to a watermelon fruit-preserving foliar fertilizer and a preparation method and a use method thereof. Background Art
[0002] Watermelon is sweet, juicy, refreshing, and thirst-quenching, making it a perfect summer fruit. It's fat- and cholesterol-free, yet rich in glucose, malic acid, fructose, protein, amino acids, lycopene, and vitamin C. It's a nutritious, pure, and safe fruit.
[0003] Watermelon is widely cultivated in my country, but low fruit set has long plagued fruit growers. This low fruit set is primarily due to the following factors: First, climate. Improper management of temperature, humidity, light, and other climatic factors during flower bud differentiation can easily lead to an imbalance in the male-female flower differentiation ratio, making pollination difficult and resulting in low fruit set. Second, nutrition. Improper nutritional supplementation throughout the watermelon's growth period can lead to overnutrition, resulting in vigorous seedling growth and suppressed reproductive growth, preventing the transition from vegetative to reproductive growth. This can lead to slow fruit development or even fruit drop. Third, water. Appropriately controlling the frequency and amount of irrigation can effectively control apical vigor, promote reproductive growth, and facilitate fruit set. Therefore, low fruit set in watermelon is influenced by multiple factors, and the key to improving its fruit set is to promote reproductive growth. Summary of the Invention
[0004] The invention aims to provide a watermelon fruit-preserving foliar fertilizer, which is used for promoting the reproductive growth of watermelons, increasing the fruit setting rate, reducing the deformity rate and increasing the yield per mu.
[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:
[0006] The invention provides a watermelon fruit-preserving foliar fertilizer, which comprises the following components in parts by weight: 0.1-0.5 parts of sodium nitrophenolate, 0.5-1.0 parts of 2,4-D, 0.8-1.2 parts of naphthaleneacetic acid, 30-50 parts of sodium alginate, 10-20 parts of potassium fulvate, and 50-100 parts of water.
[0007] Preferably, the composition comprises the following components in parts by weight: 0.2-0.4 parts of sodium nitrophenolate, 0.7-0.9 parts of 2,4-D, 0.9-1.1 parts of naphthaleneacetic acid, 35-45 parts of sodium alginate, 12-18 parts of potassium fulvate, and 70-90 parts of water.
[0008] Preferably, the mixture comprises the following components in parts by weight: 0.3 parts of sodium nitrophenolate, 0.8 parts of 2,4-D, 1.0 parts of naphthaleneacetic acid, 40 parts of sodium alginate, 15 parts of potassium fulvic acid, and 80 parts of water.
[0009] The present invention also provides a method for preparing the watermelon fruit-preserving foliar fertilizer, comprising the following steps:
[0010] (1) mixing sodium alginate with water to obtain a sodium alginate solution;
[0011] (2) Potassium fulvic acid, naphthaleneacetic acid, 2,4-D, and sodium nitrophenolate are sequentially added to the sodium alginate solution to obtain a watermelon fruit-preserving foliar fertilizer.
[0012] Preferably, the mixing temperature in step (1) is 80-90°C.
[0013] Preferably, in step (2), the temperature for adding potassium fulvate is 80-90°C; the temperature for adding naphthaleneacetic acid is 50-60°C; the temperature for adding 2,4-D is 30-40°C; and the temperature for adding sodium nitrophenolate is 20-30°C.
[0014] The invention also provides a method for using the watermelon fruit-preserving foliar fertilizer. The foliar fertilizer is diluted 300 to 500 times and then sprayed on the leaf surface or the fruit surface.
[0015] Preferably, the spraying amount of the foliar fertilizer is 10 to 30 mL of stock solution per mu.
[0016] Preferably, the foliar fertilizer is used during the vine-growing period and / or fruiting period of the watermelon.
[0017] The present invention provides a watermelon fruit-preserving foliar fertilizer comprising the following ingredients by weight: 0.1-0.5 parts sodium nitrophenolate, 0.5-1.0 parts 2,4-D, 0.8-1.2 parts naphthaleneacetic acid, 30-50 parts sodium alginate, 10-20 parts potassium humate, and 50-100 parts water. The watermelon fruit-preserving foliar fertilizer significantly increases the fruit set rate and yield per mu of watermelon and reduces the deformity rate. The average fruit set rate is 96.4%, the average deformity rate is 1.9%, and the average yield per mu is 7501 kg. DETAILED DESCRIPTION
[0018] The invention provides a watermelon fruit-preserving foliar fertilizer, which comprises the following components in parts by weight: 0.1-0.5 parts of sodium nitrophenolate, 0.5-1.0 parts of 2,4-D, 0.8-1.2 parts of naphthaleneacetic acid, 30-50 parts of sodium alginate, 10-20 parts of potassium fulvate, and 50-100 parts of water.
[0019] In the present invention, the watermelon fruit-preserving foliar fertilizer preferably comprises the following ingredients in parts by weight: 0.2-0.4 parts of sodium nitrophenolate, 0.7-0.9 parts of 2,4-D, 0.9-1.1 parts of naphthaleneacetic acid, 35-45 parts of sodium alginate, 12-18 parts of potassium fulvic acid, and 70-90 parts of water.
[0020] In the present invention, the watermelon fruit-preserving foliar fertilizer preferably comprises the following ingredients in parts by weight: 0.3 parts of sodium nitrophenolate, 0.8 parts of 2,4-D, 1.0 parts of naphthaleneacetic acid, 40 parts of sodium alginate, 15 parts of potassium fulvic acid, and 80 parts of water.
[0021] In the present invention, the sodium nitrophenolate, 2,4-D, naphthylacetic acid, sodium alginate and potassium fulvic acid are all commercially available.
[0022] In the present invention, the sodium nitrophenolate is preferably composed of 20 wt% of sodium 5-nitroguaiacol, 25 wt% of sodium o-nitrophenolate and 55 wt% of sodium p-nitrophenolate.
[0023] The present invention also provides a method for preparing a watermelon fruit-preserving foliar fertilizer, comprising the following steps:
[0024] (1) mixing sodium alginate with water to obtain a sodium alginate solution;
[0025] (2) Potassium fulvic acid, naphthaleneacetic acid, 2,4-D, and sodium nitrophenolate are sequentially added to the sodium alginate solution to obtain a watermelon fruit-preserving foliar fertilizer.
[0026] The present invention mixes sodium alginate with water to obtain a sodium alginate solution.
[0027] In the present invention, the temperature for mixing the sodium alginate and water is preferably 80-90°C, more preferably 85°C.
[0028] In the present invention, when the sodium alginate and water are mixed, stirring is preferably performed.
[0029] In the present invention, the stirring speed is preferably 200 to 300 rpm, more preferably 250 rpm.
[0030] In the present invention, the stirring time is preferably 3 to 7 minutes, more preferably 5 minutes.
[0031] After the sodium alginate solution is prepared, potassium fulvic acid, naphthaleneacetic acid, 2,4-D and sodium nitrophenolate are sequentially added into the sodium alginate solution to obtain the watermelon fruit-preserving foliar fertilizer.
[0032] In the present invention, the temperature when adding potassium fulvic acid is preferably 80 to 90°C, more preferably 85°C.
[0033] In the present invention, the temperature when adding naphthaleneacetic acid is preferably 50 to 60°C, more preferably 55°C.
[0034] In the present invention, the temperature when adding 2,4-D is preferably 30 to 40°C, more preferably 35°C.
[0035] In the present invention, the temperature when adding sodium nitrophenolate is preferably 20-30°C, more preferably 25°C.
[0036] In the present invention, it is preferred to stir the solution during the process of sequentially adding potassium fulvic acid, naphthylacetic acid, 2,4-D and sodium nitrophenolate to the sodium alginate solution.
[0037] In the present invention, the stirring speed is preferably 200 to 300 rpm, more preferably 250 rpm.
[0038] In the present invention, after adding sodium nitrophenolate, stirring is preferably continued for 1 to 3 minutes, preferably 2 minutes.
[0039] In the process of preparing the watermelon fruit-preserving leaflet of the present invention, potassium fulvate, naphthaleneacetic acid, 2,4-D, and sodium nitrophenolate are added sequentially to a sodium alginate solution in descending order of dosage to ensure that the components are evenly mixed in the sodium alginate solution. Simultaneously, the mixing temperature gradually decreases during the process of sequentially adding the components, and the viscosity of the sodium alginate solution gradually increases as the temperature decreases. This allows the components, such as potassium fulvate, naphthaleneacetic acid, 2,4-D, and sodium nitrophenolate, to be well coated by the sodium alginate. After the components coated by the sodium alginate are applied to the leaves or the surface of the watermelon fruit, the sodium alginate can effectively improve the utilization rate of the foliage fertilizer and promote absorption and utilization.
[0040] The invention also provides a method for using a watermelon fruit-preserving foliar fertilizer. The foliar fertilizer is diluted 300 to 500 times and then sprayed on the leaf surface or the fruit surface.
[0041] In the present invention, the dilution ratio of the foliar fertilizer is preferably 350 to 450 times, more preferably 400 times.
[0042] In the present invention, the spraying amount of the foliar fertilizer is preferably 10 to 30 mL of stock solution per mu, and more preferably 20 mL of stock solution per mu.
[0043] In the present invention, the foliar fertilizer is preferably used during the vine-growing period and / or the fruiting period of the watermelon, and more preferably during the vine-growing period and the fruiting period.
[0044] The technical solutions provided by the present invention are described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.
[0045] Example 1
[0046] The raw materials were weighed according to the following mass fractions: 0.3 parts sodium nitrophenolate, 0.8 parts 2,4-D, 1.0 parts naphthaleneacetic acid, 40 parts sodium alginate, 15 parts potassium fulvate, and 80 parts water. The sodium nitrophenolate was composed of 20 wt% sodium 5-nitroguaiacol, 25 wt% sodium o-nitrophenolate, and 55 wt% sodium p-nitrophenolate.
[0047] Mix sodium alginate and water and stir at 85°C at 250 rpm for 5 minutes until the sodium alginate is completely dissolved. Then, add potassium humate at the same temperature and stir at 250 rpm until it is completely dissolved. Continue stirring until the temperature naturally cools to 55°C, then add naphthaleneacetic acid and stir at 250 rpm until it is completely dissolved. Continue stirring until the temperature naturally cools to 35°C, then add 2,4-D and stir at 250 rpm until it is completely dissolved. Continue stirring until the temperature naturally cools to 25°C, then add sodium nitrophenolate and stir at 250 rpm for 2 minutes until it is completely dissolved. Thus, a watermelon fruit-preserving foliar fertilizer is prepared.
[0048] Example 2
[0049] The raw materials were weighed according to the following mass fractions: 0.5 parts sodium nitrophenolate, 1.0 parts 2,4-D, 1.2 parts naphthaleneacetic acid, 50 parts sodium alginate, 20 parts potassium fulvate, and 100 parts water. The sodium nitrophenolate was composed of 20 wt% sodium 5-nitroguaiacol, 25 wt% sodium o-nitrophenolate, and 55 wt% sodium p-nitrophenolate.
[0050] Mix sodium alginate and water at 80°C and stir at 300 rpm for 7 minutes until the sodium alginate is completely dissolved, then add potassium humate at the same temperature, stir at 300 rpm until completely dissolved, continue stirring until the temperature naturally cools to 50°C, add naphthaleneacetic acid, stir at 300 rpm until completely dissolved, continue stirring until the temperature naturally cools to 30°C, add 2,4-D, stir at 300 rpm until completely dissolved, continue stirring until the temperature naturally cools to 20°C, add sodium nitrophenolate, stir at 300 rpm for 1 minute until completely dissolved, and thus prepare the watermelon fruit-protecting foliar fertilizer.
[0051] Example 3
[0052] The raw materials were weighed according to the following mass fractions: 0.1 part sodium nitrophenolate, 0.5 part 2,4-D, 0.8 part naphthaleneacetic acid, 30 parts sodium alginate, 10 parts potassium fulvate, and 50 parts water. The sodium nitrophenolate was composed of 20 wt% sodium 5-nitroguaiacol, 25 wt% sodium o-nitrophenolate, and 55 wt% sodium p-nitrophenolate.
[0053] Mix sodium alginate and water at 90°C and stir at 200 rpm for 3 minutes until the sodium alginate is completely dissolved, then add potassium humate at the same temperature, stir at 200 rpm until completely dissolved, continue stirring until the temperature naturally cools to 60°C, add naphthaleneacetic acid, stir at 200 rpm until completely dissolved, continue stirring until the temperature naturally cools to 40°C, add 2,4-D, stir at 200 rpm until completely dissolved, continue stirring until the temperature naturally cools to 30°C, add sodium nitrophenolate, stir at 200 rpm for 3 minutes until completely dissolved, and thus prepare the watermelon fruit-preserving foliar fertilizer.
[0054] Experimental Example 1
[0055] The watermelon fruit-preserving foliar fertilizers prepared in Examples 1 to 3 were diluted 400 times with water. Spray the watermelon during the vine-pulling period (March 25, 2021, 20 mL of stock solution / mu) and the fruiting period (April 28, 2021. 25 mL of stock solution / mu). The experiment was carried out in a watermelon greenhouse, and the watermelon variety was New Red Treasure Watermelon. The greenhouse was divided into 3 test areas, and the area of each test area was 8m×80m. During the experiment, the fruit setting rate and deformity rate of watermelons were counted, and the yield per mu was counted after harvest. The results are shown in Table 1.
[0056] Table 1 Effect of fruit-preserving and yield-increasing foliar fertilizer on watermelon
[0057] deal with Fruit setting rate / % Deformity rate / % Yield per mu / kg Example 1 96.9 1.7 7538 Example 2 96.5 2.1 7470 Example 3 95.8 1.9 7495 average 96.4 1.9 7501
[0058] Note: Fruit setting rate (%) = number of set fruits / number of flowers × 100%; deformity rate (%) = number of deformed fruits / total number of fruits × 100%.
[0059] According to previous experience, the fruit set rate of watermelons is generally between 60% and 80%, the deformity rate is between 4.0% and 7.0%, and the yield per mu is around 6,000 kg. Therefore, as shown in the statistical results in Table 1, the watermelon fruit-preserving foliar fertilizer provided by the present invention significantly increased the fruit set rate and yield per mu of watermelons and reduced the deformity rate. The average fruit set rate was 96.4%, the average deformity rate was 1.9%, and the average yield per mu was 7,501 kg.
[0060] Comparative Example 1
[0061] In order to explore the effect of the ratio of three plant hormones (sodium nitrophenolate, 2,4-D, and naphthylacetic acid) on the fruit preservation effect of watermelon, the present invention set up this comparative example 1. It includes the following two groups:
[0062] D1-1: The amount of sodium nitrophenolate in Example 1 was increased to 0.8 parts, 2,4-D was adjusted to 0.5 parts, and naphthaleneacetic acid was adjusted to 0.8 parts. The total mass of the three hormones remained unchanged, and the preparation method remained unchanged.
[0063] D1-2: Reduce the amount of naphthylacetic acid in Example 1 to 0.6 parts, adjust sodium nitrophenolate to 0.5 parts, and adjust 2,4-D to 1.0 parts. The total mass of the three hormones remains unchanged, and the preparation method remains unchanged.
[0064] Following the method of Experimental Example 1, additional groups D1-1 and D1-2 were established. The foliar fertilizer prepared for groups D1-1 and D1-2 was diluted 400-fold and sprayed. The watermelon fruit set rate, deformity rate, and per-acre yield were calculated, and the results are shown in Table 2.
[0065] Table 2 Effects of plant hormone ratios on fruit preservation and yield increase of watermelon
[0066] deal with Fruit setting rate / % Deformity rate / % Yield per mu / kg D1-1 85.6 2.9 7230 D1-2 86.9 3.1 7146
[0067] As shown in Table 2, after adjusting the ratio and dosage of the three hormones, such as increasing the proportion of sodium nitrophenolate by D1-1 or reducing the proportion of naphthylacetic acid by D1-2, the fruit setting rate, deformity rate and per mu yield of watermelon will be significantly affected.
[0068] Comparative Example 2
[0069] In order to explore the effects of different plant hormones on the fruit retention effect of watermelon, the present invention sets up this comparative example 2. It includes single plant hormone treatment and double hormone treatment.
[0070] Single phytohormone treatments include:
[0071] D2-1: Substitute 1.8 parts of sodium nitrophenolate for the three plant hormones in Example 1 (0.5 parts of sodium nitrophenolate, 1.0 parts of 2,4-D, and 1.2 parts of naphthaleneacetic acid);
[0072] D2-2: Substitute 2.5 parts of 2,4-D for the three plant hormones in Example 1 (0.5 parts of sodium nitrophenolate, 1.0 parts of 2,4-D, and 1.2 parts of naphthaleneacetic acid);
[0073] D2-3: Substitute 2.0 parts of naphthaleneacetic acid for the three plant hormones in Example 1 (0.5 parts of sodium nitrophenolate, 1.0 parts of 2,4-D, and 1.2 parts of naphthaleneacetic acid);
[0074] Following the method of Experimental Example 1, additional groups D2-1, D2-2, and D2-3 were established. The foliar fertilizer prepared from groups D2-1, D2-2, and D2-3 was diluted 400-fold and sprayed. The watermelon fruit set rate, deformity rate, and per-acre yield were calculated, and the results are shown in Table 3.
[0075] Table 3 Effects of single plant hormones on fruit preservation and yield increase of watermelon
[0076] deal with Fruit setting rate / % Deformity rate / % Yield per mu / kg D2-1 75.1 3.9 6352 D2-2 74.5 4.1 6630 D2-3 76.8 5.5 6485
[0077] As shown in Table 3, when the three plant hormones were applied individually, the fruit setting rate and yield per mu did not increase significantly, and the deformity rate was high. This indicates that the combined use of the three plant hormones can produce better results in fruit preservation and yield increase.
[0078] Double phytohormone treatment includes
[0079] D2-4: Sodium nitrophenolate and naphthaleneacetic acid were compounded in a mass ratio of 1:3 to obtain 2.4 parts by mass, which was used to replace the three plant hormones in Example 1 (0.5 parts of sodium nitrophenolate, 1.0 parts of 2,4-D, and 1.2 parts of naphthaleneacetic acid).
[0080] D2-5: Sodium nitrophenolate and 2,4-D were mixed in a mass ratio of 1:4 to obtain 2.5 parts by mass, which was used to replace the three plant hormones in Example 1 (0.5 parts of sodium nitrophenolate, 1.0 parts of 2,4-D, and 1.2 parts of naphthaleneacetic acid).
[0081] D2-6: 2,4-D and naphthaleneacetic acid were compounded in a mass ratio of 1:1 to obtain 2.0 parts, which were used to replace the three plant hormones in Example 1 (0.5 parts of sodium nitrophenolate, 1.0 parts of 2,4-D, and 1.2 parts of naphthaleneacetic acid).
[0082] Following the method of Experimental Example 1, additional groups D2-4, D2-5, and D2-6 were established. The foliar fertilizer prepared for groups D2-4, D2-5, and D2-6 was diluted 400-fold and sprayed. The fruit set rate, deformity rate, and per-acre yield of watermelons were calculated, and the results are shown in Table 4.
[0083] Table 4 Effects of dual plant hormones on fruit preservation and yield increase of watermelon
[0084]
[0085]
[0086] The statistical results in Tables 3 and 4 show that dual-hormone treatment significantly improved fruit set and yield in watermelon compared to single-hormone treatment. However, it is worth noting that the dual-hormone treatments (sodium nitrophenolate and naphthaleneacetic acid) in groups D2-4 did not improve fruit set rate or yield per mu. This suggests that 2,4-D plays an important coordinating role in this watermelon fruit-preserving formula.
[0087] The dosage of the above single and double plant hormones is the appropriate dosage determined through preliminary experiments. Although it does not constitute an equal replacement with the three plant hormones in Example 1, the effect is better than that of an equal replacement. Therefore, the above-mentioned single and double plant hormone dosages in parts by mass are used for replacement.
[0088] Comparative Example 3
[0089] In order to explore the effect of sodium alginate and its dosage ratio on the fruit preservation effect of watermelon, the present invention sets this comparative example 3. It includes:
[0090] D3-1: Based on Example 1, sodium alginate was omitted, and the preparation steps related to sodium alginate were omitted;
[0091] D3-2: Based on Example 1, the amount of sodium alginate was reduced to 10 parts by mass, while other conditions remained unchanged;
[0092] D3-3: Based on Example 1, the amount of sodium alginate was increased to 80 parts by mass, while other conditions remained unchanged.
[0093] Following the method of Experimental Example 1, additional groups D3-1, D3-2, and D3-3 were established. The foliar fertilizer prepared from groups D3-1, D3-2, and D3-3 was diluted 400-fold and sprayed. The watermelon fruit set rate, deformity rate, and per-acre yield were calculated, and the results are shown in Table 5.
[0094] Table 5 Effect of sodium alginate on fruit preservation and yield increase of watermelon
[0095] deal with Fruit setting rate / % Deformity rate / % Yield per mu / kg D3-1 78.6 3.9 6550 D3-2 80.9 4.2 7030 D3-3 75.3 6.4 6485
[0096] As shown in Table 5, the fruit set rate and deformity rate in group D3-1, which did not include sodium alginate, did not significantly improve, and the yield was also average. However, the fruit set rate and yield per mu in groups D3-2 and D3-3, which varied the amount of sodium alginate added, were also significantly lower than those in Example 1, and the deformity rate in group D3-3 was significantly increased. This may be related to the stimulating properties of sodium alginate. Adjusting the amount of sodium alginate added altered the watermelon plant's absorption and utilization efficiency of phytohormones, resulting in either an overly high or low effective dose of phytohormones, ultimately manifesting as a decrease in fruiting performance.
[0097] Comparative Example 4
[0098] In order to explore the effect of potassium fulvic acid and its dosage ratio on the fruit preservation effect of watermelon, the present invention sets this comparative example 4. It includes:
[0099] D4-1: Based on Example 1, potassium fulvic acid was omitted, and the preparation steps related to potassium fulvic acid were omitted;
[0100] D4-2: Based on Example 1, the amount of potassium fulvic acid was reduced to 5 parts by mass, while other conditions remained unchanged;
[0101] D4-3: Based on Example 1, the amount of potassium fulvic acid was increased to 30 parts by mass, while other conditions remained unchanged.
[0102] Following the method of Experimental Example 1, additional groups D4-1, D4-2, and D4-3 were established. The foliar fertilizer prepared from groups D4-1, D4-2, and D4-3 was diluted 400-fold and sprayed. The watermelon fruit set rate, deformity rate, and per-acre yield were calculated and the results are shown in Table 6.
[0103] Table 6 Effects of potassium fulvic acid on fruit preservation and yield increase of watermelon
[0104] deal with Fruit setting rate / % Deformity rate / % Yield per mu / kg D4-1 86.7 1.9 7188 D4-2 88.9 2.2 7356 D4-3 90.5 1.8 7250
[0105] Table 6 shows that potassium fulvate, as a functional nutrient, was found to have a certain impact on watermelon fruit set and yield per mu when potassium fulvate was omitted or its addition ratio was changed, but the deformity rate remained unchanged. Therefore, the appropriate addition of potassium fulvate is beneficial for improving fruit set and increasing watermelon yield.
[0106] Comparative Example 5
[0107] Comparative Example 5 changes the preparation method of Example 1. According to Example 1, the ingredients are weighed, water is directly added and mixed, and stirred evenly to obtain a foliar fertilizer.
[0108] Following the method of Experimental Example 1, group D5 was added, and the foliar fertilizer prepared in Comparative Example 5 was diluted 400 times and sprayed. The fruit set rate, deformity rate, and yield per mu of watermelon were calculated. The results showed that the fruit set rate of watermelon was 75.5%, the deformity rate was 2.9%, and the yield per mu was 6,698 kg. This shows that the preparation method of the present invention has a significant synergistic effect on improving the fruit preservation and yield-increasing effects of foliar fertilizer.
[0109] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A watermelon fruit-preserving foliar fertilizer, characterized in that: The invention is composed of the following ingredients in parts by weight: 0.1-0.5 parts of sodium nitrophenolate, 0.5-1.0 parts of 2,4-D, 0.8-1.2 parts of naphthaleneacetic acid, 30-50 parts of sodium alginate, 10-20 parts of potassium fulvate, and 50-100 parts of water; The preparation method of the watermelon fruit-preserving foliar fertilizer comprises the following steps: (1) mixing sodium alginate with water to obtain a sodium alginate solution; (2) adding potassium fulvic acid, naphthaleneacetic acid, 2,4-D, and sodium nitrophenolate in sequence to the sodium alginate solution to obtain a watermelon fruit-preserving foliar fertilizer; The mixing temperature in step (1) is 80-90° C.; In step (2), the temperature for adding potassium fulvate is 80-90° C.; the temperature for adding naphthaleneacetic acid is 50-60° C.; the temperature for adding 2,4-D is 30-40° C.; and the temperature for adding sodium nitrophenolate is 20-30° C.
2. Foliar fertilizer as claimed in claim 1, is characterized in that, The invention is composed of the following components in parts by weight: 0.2-0.4 parts of sodium nitrophenolate, 0.7-0.9 parts of 2,4-D, 0.9-1.1 parts of naphthaleneacetic acid, 35-45 parts of sodium alginate, 12-18 parts of potassium fulvate and 70-90 parts of water.
3. foliar fertilizer as claimed in claim 2, is characterized in that, The invention is composed of the following components in parts by weight: 0.3 parts of sodium nitrophenolate, 0.8 parts of 2,4-D, 1.0 parts of naphthaleneacetic acid, 40 parts of sodium alginate, 15 parts of potassium fulvic acid, and 80 parts of water.
4. A method for preparing the watermelon fruit-preserving foliar fertilizer according to any one of claims 1 to 3, characterized in that: The steps include: (1) mixing sodium alginate with water to obtain a sodium alginate solution; (2) Potassium fulvic acid, naphthaleneacetic acid, 2,4-D, and sodium nitrophenolate are sequentially added to the sodium alginate solution to obtain a watermelon fruit-preserving foliar fertilizer.
5. The preparation method according to claim 4, wherein The mixing temperature in step (1) is 80-90°C.
6. The preparation method according to claim 5, wherein In step (2), the temperature for adding potassium fulvate is 80-90° C.; the temperature for adding naphthaleneacetic acid is 50-60° C.; the temperature for adding 2,4-D is 30-40° C.; and the temperature for adding sodium nitrophenolate is 20-30° C.
7. A method for using the watermelon fruit-preserving foliar fertilizer according to any one of claims 1 to 3 or the watermelon fruit-preserving foliar fertilizer prepared by the preparation method according to any one of claims 4 to 6, characterized in that: The foliar fertilizer is diluted 300 to 500 times and then sprayed on the leaf surface or fruit surface.
8. The method of use according to claim 7, wherein: The spraying amount of the foliar fertilizer is 10 to 30 mL of stock solution per mu.
9. The method of use according to claim 7 or 8, wherein: The foliage fertilizer is used during the vine-growing period and / or the fruiting period of the watermelon.
Citation Information
Patent Citations
Foliar nutrient special for tea-oil trees and application thereof
CN105036926A