Watermelon alternating iterative production method

Abstract

The present invention relates to an alternating iterative watermelon production method, comprising the following steps: S1: when the temperature is between 5 and 20°C, cultivating a first branch and a second branch on each watermelon plant, cultivating the first branch to set fruit and retaining only one first fruit, and the second branch to be fruitless; S2: when the temperature rises to 15 to 30°C, harvesting the first fruit, cultivating the second branch to set fruit and retaining only one second fruit, and pruning the branch of the first fruit from its root; cultivating a third branch and a fourth branch at the root, and selecting and iterating to retain only one of the third and fourth branches; S3: when the temperature rises to 25 to 40°C, harvesting the second fruit, cultivating other branches to set fruit and retaining only one third fruit, and pruning the branch of the second fruit from its root; cultivating a fifth branch and a sixth branch at the root, and selecting and iterating to retain the fifth and sixth branches. The present invention can produce watermelons at a lower cost and with better quality without changing the traditional cultivation quantity.

Description

Technical Field

[0001] The invention belongs to the technical field of watermelon planting, and in particular relates to an alternating iterative production method for watermelons. Background Art

[0002] Existing technologies for growing watermelons include:

[0003] Site Selection and Preparation: Choose sandy loam with loose, fertile soil, deep soil layers, ample sunlight, and convenient irrigation and drainage, and avoid repeated cropping. Deeply plow and freeze the soil before planting. Prepare the land appropriately before transplanting, ensuring the soil is loose and level, and the field is dry after rain has stopped.

[0004] Seed selection and soaking: Choose good varieties suitable for local soil and climate, and pay attention to seed clarity, purity, moisture content, 1000-grain weight, germination rate and other indicators. Before soaking, dry the seeds for 2 days, then soak them in warm water for 6-8 hours and disinfect them.

[0005] Sowing and Transplanting: Dig a shallow trench or hole 8-10cm deep on the ridge near the base fertilizer application point, spacing the plants 45-50cm apart. Sow 1-2 pre-germinated seeds in each hole, then cover with 2-3cm of soil and water thoroughly. If the seeds are coated, disinfection is not necessary and they can be sown directly. For open-field watermelon cultivation, in addition to direct seeding, seedlings can also be raised and transplanted.

[0006] Fertilization management: During the watermelon's growth process, proper fertilization is essential. Base fertilizer generally accounts for 60%-70% of the total fertilizer application, primarily consisting of high-quality cake fertilizer and organic fertilizer, supplemented by inorganic fertilizer, with a reasonable balance of potassium, phosphorus, nitrogen, and other elements. Additionally, topdressing should be applied at appropriate times based on the watermelon's growth.

[0007] Irrigation management: Watermelons need to be watered at the right time during their growth. During droughts, water thoroughly once to keep the soil moist. Also, pay attention to drainage during rainy seasons to avoid waterlogging in the fields.

[0008] Pest and disease control: During the growth of watermelons, it is necessary to pay attention to the prevention and control of pests and diseases. Regularly check the growth of the plants to detect and deal with pests and diseases in a timely manner.

[0009] When the production environment temperature is between 5-20°C, the first crop of watermelons typically uses a two-vine-one-fruit system. This involves retaining two vines and selecting one watermelon. Specifically, in addition to the main vine, a side vine is selected at the base to grow parallel to the main vine. All other side vines are then removed. This results in a larger number of vines, a larger leaf area, and a greater number of female flowers, allowing both the main and side vines to set fruit, resulting in larger fruits. This process should be carried out from the time the watermelons are harvested until harvest, removing excess vines, reducing tender and small leaves, and retaining larger, stronger leaves to concentrate nutrients and promote fruit development. This proven model is generally chosen based on light, temperature, and nutrition.

[0010] However, the current two-vine-one-fruit planting method is greatly affected by temperature. As the temperature rises, this method prolongs the fruit-setting time of each watermelon plant and reduces the quality of the watermelon, resulting in high production costs and poor quality. Summary of the Invention

[0011] In order to solve the technical problems existing in the prior art, the present invention provides an alternating iterative production method for watermelon.

[0012] The technical solution of the present invention is to provide a watermelon alternating iterative production method, which comprises the following steps:

[0013] S1: When the temperature is between 5°C and 20°C, each watermelon plant is cultivated with a first branch and a second branch. The first branch is cultivated to set fruit and retain only one first fruit, while the second branch is fruitless.

[0014] S2: When the temperature rises to 15-30°C, harvest the first fruit, cultivate the second branch to set fruit and retain only one second fruit, and cut the branch of the first fruit from its root; cultivate a third branch and a fourth branch at the root, and retain only one of the third branch and the fourth branch after iterative selection;

[0015] S3: When the temperature range rises to 25-40°C, the second fruit is harvested, other branches are cultivated to bear fruit and only one third fruit is retained, and the branches of the second fruit are cut off from the roots; the fifth and sixth branches are cultivated at the roots, and the fifth and sixth branches are selected and retained iteratively.

[0016] Furthermore, the method also includes S4: when the temperature range rises to above 40°C, harvesting the third fruit, cultivating other branches to set fruit and retaining only one fourth fruit, and cutting off the branches of the third fruit from their roots; cultivating the seventh and eighth branches at the roots, and selecting and iterating to retain the seventh and eighth branches.

[0017] Furthermore, the method also includes S5: when the temperature range drops to 40-25°C, harvesting the fourth fruit, cultivating other branches to bear fruit and retaining only one fifth fruit, and cutting off the branches of the fourth fruit from the roots; cultivating the ninth branch and the tenth branch at the roots, and selecting and iterating to retain one of the ninth branch and the tenth branch.

[0018] Furthermore, the method also includes S6: when the temperature range drops to 30-15°C, harvesting the fifth fruit, cultivating other branches to bear fruit and retaining only one sixth fruit, and cutting off the branches of the fifth fruit from the roots; cultivating the eleventh branch and the twelfth branch at the roots, and selecting and iteratively retaining one of the eleventh branch and the twelfth branch.

[0019] Furthermore, when the temperature interval is stable, the last step of the method is repeated, while only one branch is retained after the iteration.

[0020] Furthermore, the method includes arranging a planting greenhouse, wherein the planting greenhouse is 50m long and 7m wide, and is divided into a first row and a second row, wherein an operation channel is arranged between the first row and the second row, and the width of the operation channel is 0.4m.

[0021] Furthermore, the planting spacing of the method is 0.25m, and 640 plants are planted per mu.

[0022] Compared with the prior art, the watermelon alternating iterative production method provided by the present invention has the following beneficial effects:

[0023] By alternating and iteratively producing each watermelon plant at different temperatures, as the temperature rises, the branches and vines of the fruit are cut from their roots after harvesting, and two new branches and vines are cultivated at the roots. The two new branches and vines are selected and iteratively retained, so that each watermelon plant gradually changes from a two-vine-one-fruit cultivation pattern to a three-vine-one-fruit pattern, and then to a four-vine-one-fruit pattern. When the temperature drops, the branches and vines of the fruit are cut from their roots after harvesting, and two new branches and vines are cultivated at the roots. One of the two new branches and vines is selected and iteratively retained, so that each watermelon plant gradually changes from a four-vine-one-fruit pattern to a three-vine-one-fruit pattern, and then to a two-vine-one-fruit pattern. This allows the watermelons to maintain the lowest production cost and the best quality under different temperature modes, that is, to achieve the effect of lower cost and better quality without changing the traditional cultivation quantity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a diagram of the two-vine-one-fruit structure of an embodiment of the present invention when the temperature range is 5-20°C.

[0025] Figure 2 This is a structural diagram of pruning old branches when the temperature range is 15-30°C according to an embodiment of the present invention.

[0026] Figure 3 This is a diagram of the structure of new branches inducing growth when the temperature range is 15-30°C according to an embodiment of the present invention.

[0027] Figure 4 This is a diagram of the structure of three vines and one fruit when the temperature range is 25-40°C according to an embodiment of the present invention.

[0028] Figure 5 This is a diagram of the four-vine and one-fruit structure when the temperature range is above 40°C according to an embodiment of the present invention.

[0029] Figure 6 This is a diagram of the structure of three vines and one fruit when the temperature range is 40-25°C according to an embodiment of the present invention.

[0030] Figure 7This is a diagram of the two-vine and one-fruit structure of an embodiment of the present invention when the temperature range is 30-15°C. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0032] A watermelon alternating iterative production method is provided, the method comprising the following steps:

[0033] S1: When the temperature is between 5°C and 20°C, each watermelon plant cultivates a first branch 101 and a second branch 102, cultivates the first branch 101 to bear fruit and retains only one first fruit 103, and the second branch 102 bears no fruit;

[0034] S2: When the temperature rises to 15-30°C, the first fruit 103 is harvested, the second branch 102 is cultivated to set fruit and only one second fruit 401 is retained. The branch of the first fruit 103 is cut off from its root; the third branch 301 and the fourth branch 302 are cultivated at the root, and only one of the third branch 301 and the fourth branch 302 is retained after iterative selection.

[0035] S3: When the temperature range rises to 25-40°C, the second fruit 401 is harvested, other branches are cultivated to bear fruit and only one third fruit is retained, and the branches of the second fruit 401 are cut off from their roots; the fifth branch 501 and the sixth branch 502 are cultivated at the roots, and the fifth branch 501 and the sixth branch 502 are selected and retained iteratively.

[0036] The specific embodiment is as follows: When the climate temperature is 5-20 degrees, the cultivation mode is two vines and one fruit, and its basic structure is as follows: Figure 1 As shown, the first watermelon is left with branches and fruits, retaining the first branch 101 and the second branch 102, and selecting a first watermelon fruit 103. Under the cultivation method of two vines and one fruit, since each watermelon retains two vines, it is guaranteed that the watermelon can obtain sufficient light to promote photosynthesis and improve the quality of the fruit. Secondly, within this temperature range, the growth rate of watermelon is slow, and since only one fruit is retained, the quality and yield of the single fruit can be guaranteed. When the climate temperature of the production environment is between 15 and 30 degrees, the main branches are cultivated alternately, such as Figure 2 As shown, the old branches are cut off and the second branches 102 are retained. Figure 3 The new branches are induced to grow. After the first batch of melons are harvested, the old branches that have produced melons are cut off from the roots, and then new branches are induced to grow. Figure 3 The third branch 301 and the fourth branch 302 have shown strong growth. When the production environment temperature is 25-40 degrees, such as Figure 4As shown, after the first batch of watermelons is harvested, as the temperature gradually rises, the old branches that have borne fruit are cut off at the roots, and one old branch is accurately cut off to stimulate the growth of two new branches. The fifth branch 501 and the sixth branch 502 are selected and retained, and the branch structure is changed to complete the transformation from two vines and one fruit to three vines and one fruit. As the temperature rises, the growth rate of the watermelon also accelerates. Increasing the number of branches effectively promotes the physiological and biochemical processes of the watermelon, such as photosynthesis, respiration, and transpiration, thereby promoting the rapid ripening of the watermelon and ensuring the quality of the watermelon, that is, effectively achieving standardized eugenics and good breeding.

[0037] like Figure 5 As shown, the method also includes S4, when the temperature range rises to above 40°C, harvesting the third fruit, cultivating other branches and vines to set fruits and retaining only one fourth fruit 503, and cutting off the branches and vines of the third fruit from their roots; cultivating the seventh branch and vine 504 and the eighth branch and vine 505 at the roots, and selecting and iterating to retain the seventh branch and vine 504 and the eighth branch and vine 505, that is, converting from the original three-vine and one-fruit cultivation model to the four-vine and one-fruit cultivation model, effectively realizing standardized eugenics and good breeding.

[0038] like Figure 6 As shown, the method also includes S5, when the temperature range drops to 40-25°C, harvesting the fourth fruit 503, cultivating other branches and vines to set fruits and retaining only one fifth fruit 601, and cutting off the branches and vines of the fourth fruit 503 from their roots; cultivating the ninth branch and vine 602 and the tenth branch and vine 603 at the roots, and selecting and iteratively retaining one of the ninth branch and vine 602 and the tenth branch and vine 603, thus completing the transformation from the original four-vine and one-fruit cultivation to the three-vine and one-fruit cultivation, and effectively realizing standardized eugenics and good breeding.

[0039] like Figure 7 As shown, the method also includes S6, when the temperature range drops to 30-15°C, the fifth fruit is harvested, other branches are cultivated to bear fruit and only one sixth fruit is retained, and the branches of the fifth fruit are cut off from the roots; the eleventh branch 701 and the twelfth branch (not shown in the figure) are cultivated at the roots, and one of the eleventh branch 701 and the twelfth branch is selected and iteratively retained, that is, the transformation from the original three branches and one fruit to the two branches and one fruit is completed, and standardized eugenics and good breeding are effectively achieved.

[0040] Furthermore, when the temperature range is stable, the last step of the method is repeated, and only one branch is retained after the iteration to stabilize the number of branches per watermelon plant, so as to obtain the best economic benefits and the best watermelon quality under the current temperature environment.

[0041] Furthermore, before planting, the method also includes the step of arranging a planting greenhouse. The planting greenhouse is arranged to be 50m long and 7m wide, divided into a first row and a second row. An operating channel is arranged between the first row and the second row, and the width of the operating channel is 0.4m. Among them, the planting spacing of this method is 0.25m, the net area is 560 square meters per mu, and 640 plants are planted per mu. The planting greenhouse is arranged according to this method to achieve the best economic benefits and the best watermelon quality.

Claims

1. A watermelon alternating iterative production method, characterized in that: The method comprises the following steps: S1: When the temperature is between 5°C and 20°C, each watermelon plant is cultivated with a first branch and a second branch. The first branch is cultivated to set fruit and only one first fruit is retained, while the second branch is fruitless. S2: When the temperature rises to 15-30°C, harvest the first fruit, cultivate the second branch to set fruit and retain only one second fruit, and cut the branch of the first fruit from its root; cultivate a third branch and a fourth branch at the root, and retain only one of the third branch and the fourth branch after iterative selection; S3: When the temperature rises to 25-40°C, the second fruit is harvested, other branches are cultivated to set fruit, and only one third fruit is retained. The branches of the second fruit are cut off from their roots; the fifth and sixth branches are cultivated at the roots, and the fifth and sixth branches are selected and retained iteratively; S4: When the temperature range rises to above 40°C, the third fruit is harvested, other branches are cultivated to bear fruit and only one fourth fruit is retained, and the branches of the third fruit are cut off from the roots; the seventh and eighth branches are cultivated at the roots, and the seventh and eighth branches are selected and retained iteratively.

2. The watermelon alternating iterative production method according to claim 1, wherein: The method comprises arranging a planting greenhouse, wherein the planting greenhouse is 50m long and 7m wide and is divided into a first row and a second row; an operation channel is arranged between the first row and the second row; and the width of the operation channel is 0.4m.

3. The watermelon alternating iterative production method according to claim 2, wherein: The planting distance of the method is 0.25m, and 640 plants are planted per mu.

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