Temperature regulation and control method for extremely early-maturing facility cultivation of potted Lingwu long jujubes

Abstract

A potted Lingwu long jujube extremely-early-maturing facility cultivation temperature regulation and control method comprises the following steps: step 1, warehousing and dormancy: spraying a 5% urea solution or 5% lime sulfur before entering a refrigeration house to promote potted Lingwu long jujubes to forcibly fall leaves, manually picking off unfallen leaves, thoroughly watering, transferring the potted Lingwu long jujubes after falling leaves into a fresh-keeping refrigeration house, and storing the potted Lingwu long jujubes in the refrigeration house; the temperature of the fresh-keeping refrigeration house is set to be 2 DEG C; step 2, greenhouse temperature rise: arranging electric heating equipment in the greenhouse to adjust the air temperature and the soil temperature at the root zone; 3, temperature monitoring: setting a temperature self-recording instrument in the growth environment of the potted Lingwu long jujube, and monitoring air temperature data and soil temperature at the root zone in the flowerpot in real time. By implementing temperature regulation and control, the temperature of the environment where the potted Lingwu long jujube is located is accurately controlled, then dormancy breaking, growth and development of the potted Lingwu long jujube are promoted, and the flower bud differentiation rate and the fruit setting rate are increased.

Description

Technical Field

[0001] The invention belongs to the technical field of plant cultivation, and particularly relates to a temperature control method for extremely early-maturing facility cultivation of potted Lingwu long jujubes. Background Art

[0002] Ningxia red dates industry is an important agricultural specialty industry in Ningxia. Among them, Lingwu long dates are the best red dates. They are known as the "king of dates" for their large fruit, thin skin, crispy flesh, juicy and delicious taste, moderate sweetness and sourness, and rich in various minerals and vitamins. ” As a deciduous fruit tree, Lingwu jujube needs to go through two important periods of bud dormancy and germination in its annual growth cycle, which have different temperature requirements: during the bud dormancy period, it can only complete dormancy smoothly if the low temperature environment lasts for a certain period of time, that is, the required cold amount is met. If the required cold amount is not met, even if the conditions are suitable in the later stage, it will cause problems such as failure to germinate normally or uneven germination; after the required cold amount is met, it will germinate and unfold leaves after a certain amount of heat accumulation. If the heat requirement is not met, it will not germinate and unfold leaves until the fruit is ripe. At present, conventional facility cultivation techniques cannot make Lingwu jujube mature and marketable before May. The main reason is that they cannot meet the low temperature requirement for early dormancy of Lingwu jujube: if Lingwu jujube is to mature before January-May, according to the normal development process, the jujube trees need to enter dormancy in June-October of the previous year and complete the dormancy process in a low temperature environment, and start to warm up and germinate in August-December. However, June-October is a relatively hot period. The control method of covering the shed during the day to shade and removing the shed at night to cool down cannot create a low temperature environment for the jujube trees in conventional facility cultivation (ridge planting), that is, it cannot meet their cooling requirements. In order to promote the early maturity of potted Lingwu jujube, it is urgent to solve the problem of temperature control in facility cultivation. Summary of the invention

[0003] The purpose of the invention is to provide a temperature control method for extremely early-maturing facility cultivation of potted Lingwu jujubes in view of the shortcomings of the existing greenhouse cultivation of potted Lingwu jujubes. By implementing temperature control, the temperature of the environment in which the potted Lingwu jujubes are located is accurately controlled, thereby promoting their dormancy release, growth and development, and improving the flower bud differentiation rate and fruit setting rate.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A temperature control method for potted Lingwu long jujube extremely early-maturing facility cultivation, the method is implemented according to the following steps:

[0006] Step 1: Store in storage and hibernate

[0007] Before entering the cold storage, spray 5% urea solution or 5% lime sulfur mixture to force the potted Lingwu jujube to shed leaves, remove the unshed leaves manually, and water thoroughly; move the potted Lingwu jujube after leaf shedding into the fresh-keeping cold storage, place them in layers using brackets, and set the temperature of the fresh-keeping cold storage to 2°C. It can meet the cooling requirements of the potted Lingwu jujube for at least 55 days, and the relative humidity of the air can be maintained at 70% to 90%. If it is insufficient, spray water to increase the humidity; ventilate regularly, which can be done in the relatively cool time period in the morning;

[0008] Step 2: Warming up the greenhouse

[0009] The solar greenhouse is equipped with electric heaters or hot air blowers and floor heating equipment to regulate the air temperature and the soil temperature at the root zone. The temperature regulation at different development stages includes the regulation of air temperature and the regulation of soil temperature at the root zone in the flower pot;

[0010] Step 3: Temperature Monitoring

[0011] A temperature recorder is set in the growth environment of the potted Lingwu jujube to monitor the air temperature data and the soil temperature in the root zone of the flowerpot in real time, and the temperature data is fed back to the control center through an automatic control system. The control center automatically adjusts the operation of the heating and cooling equipment according to the temperature data and the set temperature range to maintain temperature stability.

[0012] The present invention has the following beneficial effects:

[0013] (1) The present invention can monitor and accurately adjust the temperature in the facility and the soil temperature in the root zone of the flowerpot in real time through advanced temperature control, ensuring that the potted Lingwu long jujube grows under the most suitable growth conditions, achieving extremely early cultivation, optimizing resource utilization, and reducing production costs. (2) The present invention can meet the specific needs of its physiological growth and development by accurately controlling the growth environment temperature of the potted Lingwu long jujube under facility cultivation conditions, thereby accelerating its growth and development process and achieving extremely early cultivation of Lingwu long jujube. This method enables Lingwu long jujube to be put on the market before the maturity period of traditional open field cultivation, filling the market gap and meeting consumers' diverse needs for fresh fruits. (3) The application of the temperature control technology of the present invention can optimize the growth environment of Lingwu long jujube and place it under the most suitable temperature conditions. This helps to improve the flower bud differentiation rate, fruit setting rate, fruit quality and yield. By accurately controlling the temperature, the adverse effects of extreme weather conditions on the growth of Lingwu long jujube can be avoided, ensuring its healthy growth. DETAILED DESCRIPTION

[0014] The specific implementation methods of the present invention are as follows:

[0015] A temperature control method for potted Lingwu long jujube extremely early-maturing facility cultivation, the method is implemented according to the following steps:

[0016] Step 1: Store in storage and hibernate

[0017] Before entering the cold storage, spray 5% urea solution or 5% lime sulfur mixture to force the potted Lingwu jujube to shed leaves, manually remove the leaves that have not fallen, and water thoroughly; move the potted Lingwu jujube after leaf fall into the fresh-keeping cold storage, place them in layers using a bracket, and set the temperature of the fresh-keeping cold storage to 2°C. It can meet the cooling needs of the potted Lingwu jujube for at least 55 days, and the relative humidity of the air should be maintained at 70% to 90%. If it is insufficient, spray water to increase the humidity; ventilate regularly, which can be done during the relatively cool time in the morning.

[0018] Step 2: Warming up the greenhouse

[0019] The solar greenhouse is equipped with electric heaters or hot air blowers and floor heating equipment to regulate the air temperature and soil temperature in the root zone. Temperature control in different development stages includes the control of air temperature and the control indicators of soil temperature in the root zone in the flower pot.

[0020] The temperature control indicators at different development stages are as follows:

[0021] Bud-leaf stage: The greenhouse temperature is maintained at 18-28℃ during the day and 12-18℃ at night, and the soil temperature at the root zone of the flower pot is maintained at 14-20℃;

[0022] Flowering period: The greenhouse temperature should be maintained at 20-30℃ during the day and 14-20℃ at night, and the soil temperature at the root zone of the flower pot should be maintained at 18-22℃;

[0023] Fruiting period: The greenhouse temperature is maintained at 22-32℃ during the day and 16-22℃ at night, and the soil temperature in the root zone of the flower pot is maintained at 20-24℃;

[0024] Fruit growth period: greenhouse temperature is maintained at 20-30℃ during the day and 16-22℃ at night, and soil temperature at the root zone of the flower pot is maintained at 18-22℃;

[0025] Maturity period: The greenhouse temperature is maintained at 22-28℃ during the day and 14-20℃ at night, and the soil temperature in the root zone of the flowerpot is maintained at 16-20℃.

[0026] Step 3: Temperature Monitoring

[0027] A temperature recorder is set in the growth environment of the potted Lingwu jujube to monitor the air temperature data and the soil temperature in the root zone of the flowerpot in real time, and the temperature data is fed back to the control center through an automatic control system. The control center automatically adjusts the operation of the heating and cooling equipment according to the temperature data and the set temperature range to maintain temperature stability.

[0028] For those skilled in the art, the above-described technical solutions can be modified, or some of the technical features can be replaced by equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature control method for potted Lingwu long jujube extremely early-maturing facility cultivation, characterized in that: The method is implemented according to the following steps: Step 1: Store in storage and hibernate Before entering the cold storage, spray 5% urea solution or 5% lime sulfur mixture to force the potted Lingwu jujube to shed leaves, remove the unshed leaves manually, and water thoroughly; move the potted Lingwu jujube after leaf shedding into the fresh-keeping cold storage, place them in layers using brackets, and set the temperature of the fresh-keeping cold storage to 2°C. Maintaining it for at least 55 days can meet the cooling needs of the potted Lingwu jujube. The relative humidity of the air is maintained at 70% to 90%. If it is insufficient, spray water to increase the humidity; ventilate regularly, which can be done in the relatively cool time period in the morning; Step 2: Warming up the greenhouse The solar greenhouse is equipped with electric heaters or hot air blowers and floor heating equipment to regulate the air temperature and the soil temperature at the root zone. The temperature regulation at different development stages includes the regulation of air temperature and the regulation of soil temperature at the root zone in the flower pot; Step 3: Temperature Monitoring A temperature recorder is set in the growth environment of the potted Lingwu jujube to monitor the air temperature data and the soil temperature in the root zone of the flowerpot in real time, and the temperature data is fed back to the control center through an automatic control system. The control center automatically adjusts the operation of the heating and cooling equipment according to the temperature data and the set temperature range to maintain temperature stability.

2. The temperature control method for extremely early-maturing Lingwu long jujube cultivation in potted plants according to claim 1, characterized in that: The temperature control indicators at different development stages described in step 2 are as follows: Bud-leaf stage: The greenhouse temperature is maintained at 18-28℃ during the day and 12-18℃ at night, and the soil temperature at the root zone of the flower pot is maintained at 14-20℃; Flowering period: The greenhouse temperature should be maintained at 20-30℃ during the day and 14-20℃ at night, and the soil temperature at the root zone of the flower pot should be maintained at 18-22℃; Fruiting period: The greenhouse temperature is maintained at 22-32℃ during the day and 16-22℃ at night, and the soil temperature in the root zone of the flower pot is maintained at 20-24℃; Fruit growth period: greenhouse temperature is maintained at 20-30℃ during the day and 16-22℃ at night, and soil temperature at the root zone of the flower pot is maintained at 18-22℃; Maturity period: The greenhouse temperature is maintained at 22-28℃ during the day and 14-20℃ at night, and the soil temperature in the root zone of the flowerpot is maintained at 16-20℃.