Phosphorus application method for improving salt-alkali resistance of cotton seedlings

Abstract

The application discloses a phosphorus application method for improving salt-alkali resistance of cotton seedlings, and specifically comprises the following steps: S1, in the critical period from after cotton sowing to before true leaf unfolding, a small amount of phosphate solution is drip irrigated for multiple times; S2, the drip head position and drip irrigation depth of the drip irrigation system can ensure that the phosphate solution directly acts on the vicinity of the cotton root system, so that the root system is stimulated to develop to the deep soil, thereby enhancing the salt-alkali resistance of the cotton seedlings; S3, slow-release phosphate particles or phosphate in a wrapped form are used, which ensures that the cotton can obtain stable phosphorus nutrition supply in the whole seedling period; and S4, an online monitoring platform is established for collecting information such as soil conductivity, pH value and cotton growth condition in real time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural planting, in particular to a phosphorus application method for improving the salt-alkali resistance of cotton seedlings. BACKGROUND

[0002] Cotton is an important economic crop with a wide planting area and is crucial to the global textile industry. However, planting cotton in saline-alkali soils faces many challenges. Saline-alkali soils contain excessive amounts of soluble salts, which inhibit the germination of cotton seeds and the early growth of seedlings, leading to low emergence rate, dwarf plants, poor root development, and ultimately reduced yield. Traditional solutions include using large amounts of fresh water to flush to reduce the salt concentration in the soil or adding lime and other amendments to adjust the soil pH, but these methods are not only costly but also unstable in effect, and in the long term, they can lead to soil structure deterioration and water resource waste.

[0003] In addition, traditional fertilization methods such as broadcasting or furrow application are difficult to achieve precise control, easily causing uneven distribution and loss of phosphorus fertilizer and other nutrients, which further affects the absorption efficiency of cotton. Especially in the critical stage of cotton seedling, since the root system of seedlings has not fully developed, it is very sensitive to environmental changes, so more precise and effective nutrient management strategies are needed to support its healthy growth. However, there is currently a lack of specific fertilization programs for cotton seedlings in saline-alkali soils, especially in terms of how to combine modern irrigation techniques to optimize phosphorus fertilizer application, so there is an urgent need for a phosphorus application method to improve the salt-alkali resistance of cotton seedlings. SUMMARY

[0004] I. Technical problems to be solved

[0005] The technical problem to be solved by the present application is the various problems mentioned in the background section, and a phosphorus application method for improving the salt-alkali resistance of cotton seedlings is provided.

[0006] II. Technical solutions

[0007] To solve the above technical problems, the technical solution provided by the present application is: a phosphorus application method for improving the salt-alkali resistance of cotton seedlings, which specifically includes the following steps:

[0008] S1. Through an intelligent controlled drip irrigation system, a small amount of phosphorus salt solution is drip irrigated multiple times according to a preset schedule during the critical period from cotton sowing to true leaf unfolding;

[0009] S2. The position and depth of the drip head of the drip irrigation system are optimized to ensure that the phosphorus salt solution directly acts on the vicinity of the cotton root system to stimulate the root system to develop to the deep soil, thereby enhancing the salt-alkali resistance of cotton seedlings;

[0010] S3, using slow-release phosphate particles or encapsulated forms of phosphate, which slowly release phosphorus elements as water penetrates, extending the effective supply time and ensuring stable phosphorus nutrition supply for cotton throughout the seedling stage;

[0011] S4, establishing an online monitoring platform to collect real-time information such as soil conductivity, pH value, and cotton growth conditions, and dynamically adjusting the phosphorus application scheme through big data analysis and artificial intelligence algorithms to achieve optimal planting results.

[0012] As an improvement, the phosphate solution contains an appropriate amount of phosphorus elements and other auxiliary ingredients to meet the special nutritional needs of cotton seedlings and help reduce the impact of high concentrations of salt in the soil on cotton seedlings.

[0013] As an improvement, the intelligent control system combines real-time weather data, soil moisture sensors, and soil conductivity monitoring equipment to achieve precise control of drip irrigation time and water volume to adapt to different climate conditions and soil conditions, ensuring optimal water and fertilizer utilization efficiency.

[0014] As an improvement, the slow-release phosphate particles can continuously release phosphorus elements for up to a month, providing long-term nutrient support while reducing the risk of environmental pollution caused by excessive fertilization.

[0015] As an improvement, the online monitoring platform can automatically send alerts and suggest measures when detecting abnormal conditions such as high soil conductivity, pH value deviating from the appropriate range, or abnormal cotton growth indicators, so that timely corrective actions can be taken.

[0016] As an improvement, during implementation, the drip irrigation amount of the phosphate solution is about 0.1 liters per plant, and the drip irrigation frequency is short-time drip irrigation at dawn and dusk each day, preferably 10 minutes.

[0017] As an improvement, the slow-release phosphate particles are evenly distributed around the cotton seeds and covered with a thin layer of soil to promote effective contact with the cotton root system, thereby improving the absorption efficiency of phosphorus elements.

[0018] III. Beneficial effects

[0019] The advantages of the present application compared with the prior art are:

[0020] 1、The phosphorus application method of the application ensures the effective supply of phosphorus elements by applying a small amount of multiple times of phosphate solution drip irrigation and slow-release phosphate, stimulates the root system to develop to the deep soil, thereby effectively avoiding the influence of high-concentration salt in the surface layer, improving the survival rate and health status of cotton seedlings, and the customized phosphate solution formula not only provides sufficient phosphorus nutrition, but also contains other necessary trace elements, meets the special nutritional needs of cotton seedlings, promotes the rapid growth and development of plants, and lays a solid foundation for subsequent yield improvement.

[0021] 2、The phosphorus application method intelligent control system of the application accurately regulates the drip irrigation time and water volume according to real-time meteorological data, soil humidity and electrical conductivity and other parameters, avoids the waste of water resources and the overuse of fertilizers, reduces the agricultural production cost, and reduces the environmental pollution risk, the established online monitoring platform can collect and analyze soil and crop growth data in real time, dynamically adjusts the phosphorus application scheme through big data analysis and artificial intelligence algorithm, ensures the optimal planting effect, and can respond to abnormal conditions in time, and puts forward effective correction measures, the design of slow-release phosphate particles prolongs the effective supply time of phosphorus elements, reduces the nutrient loss and environmental pollution problems caused by frequent fertilization or one-time large amount of fertilization, and meets the concept of sustainable development. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a phosphorus application method step flow chart for improving the salt and alkali resistance of cotton seedlings. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0024] Embodiment one

[0025] As shown in the drawings, Figure 1 The application provides a phosphorus application method for improving the salt and alkali resistance of cotton seedlings, which specifically comprises the following steps:

[0026] S1, through an intelligent control drip irrigation system, a small amount of multiple times of phosphate solution drip irrigation is carried out according to a preset time table during the key period from after cotton sowing to before true leaf unfolding;

[0027] S2, the position and depth of the drip head of the drip irrigation system are optimized to ensure that the phosphate solution directly acts on the vicinity of the cotton root system to stimulate the root system to develop to the deep soil, thereby enhancing the salt and alkali resistance of the cotton seedlings;

[0028] S3. Using slow-release phosphate particles or encapsulated forms of phosphate, which slowly release phosphorus elements as water penetrates, extending the effective supply time and ensuring stable phosphorus nutrition supply for cotton throughout the seedling stage;

[0029] S4. Establishing an online monitoring platform to collect real-time information such as soil conductivity, pH value, and cotton growth conditions, and dynamically adjusting the phosphorus application scheme through big data analysis and artificial intelligence algorithms to achieve optimal planting results.

[0030] The phosphate solution contains appropriate amounts of phosphorus elements and other auxiliary ingredients to meet the special nutritional needs of cotton seedlings and help reduce the impact of high concentrations of salt in the soil on cotton seedlings. The intelligent control system combines real-time weather data, soil moisture sensors, and soil conductivity monitoring equipment to achieve precise regulation of drip irrigation time and water volume to adapt to different climate conditions and soil conditions, ensuring optimal water and fertilizer utilization efficiency.

[0031] The slow-release phosphate particles can continuously release phosphorus elements for a month, providing long-term nutrient support while reducing the risk of environmental pollution caused by excessive fertilization. The online monitoring platform can automatically send alerts and suggest measures when detecting abnormal conditions such as high soil conductivity, pH value deviating from the appropriate range, or abnormal cotton growth indicators, so that timely corrective action can be taken. In the implementation process, the drip irrigation volume of the phosphate solution is about 0.1 liters per plant, and the drip irrigation frequency is once in the morning and once in the evening for a short period of time, preferably 10 minutes. The slow-release phosphate particles are evenly distributed around the cotton seeds and covered with a thin layer of soil to promote effective contact with the cotton root system, thereby improving the absorption efficiency of phosphorus elements.

[0032] It should be noted that in the method of the present application, the intelligent control drip irrigation system is a prior art, such as the Netafim intelligent drip irrigation system and the Valley VRI variable rate irrigation system, etc., so the intelligent control drip irrigation system is not described here.

[0033] The working principle of the present application is as follows:

[0034] S1. Setting and running of the intelligent control drip irrigation system

[0035] During the critical period from cotton seeding to true leaf emergence, an intelligent controlled Netafim drip irrigation system is installed and activated. This system performs multiple small-scale phosphorus solution drip irrigations according to a pre-set schedule and specific parameters such as soil moisture, electrical conductivity, and meteorological data. Each day, short (approximately 10 minutes) drip irrigations are performed in the morning and evening, with each drip irrigation delivering approximately 0.1 liters per plant. In this way, phosphorus elements and other nutrients are precisely delivered to the cotton root zone, avoiding the problem of excessive soil salinity concentration caused by one-time large-scale application.

[0036] S2. Optimizing dripper position and depth

[0037] To ensure that the phosphate solution directly acts on the vicinity of the cotton root system, the drippers of the drip irrigation system are precisely arranged around the plant root zone and adjusted to the appropriate drip irrigation depth. This layout not only promotes the development of the root system to the deep soil, enhancing the salt-tolerant ability of cotton seedlings, but also reduces water evaporation and improves water and fertilizer utilization efficiency. In addition, the design of the dripper also takes into account the changing needs of different growth stages, allowing flexible adjustment of the drip irrigation position and depth without affecting the normal growth of crops.

[0038] S3. Application of slow-release phosphate

[0039] At the time of sowing, slow-release phosphate particles or phosphate in a wrapped form are uniformly scattered around the cotton seeds and covered with a thin layer of soil. These slow-release materials can continuously release phosphorus elements for at least a month, providing long-term nutrient support and ensuring that cotton can obtain stable phosphorus nutrition supply throughout the seedling stage. Compared with traditional fertilizers, slow-release phosphate effectively prolongs the effective supply time of phosphorus elements, reducing the risk of nutrient loss and environmental pollution caused by frequent or one-time large-scale fertilization.

[0040] S4. Establishment and use of online monitoring platform

[0041] An online monitoring platform is established to collect real-time information such as soil electrical conductivity, pH value, and cotton growth conditions. The platform is equipped with advanced sensors and data transmission equipment, which can upload the collected data to the cloud server for remote access and management by users. Through big data analysis and artificial intelligence algorithms, the platform can dynamically adjust the phosphorus application scheme to ensure optimal planting results. For example, when detecting that the soil electrical conductivity is too high, the pH value deviates from the appropriate range, or the cotton growth indicators are not normal, the platform will automatically send an alarm and propose measures for timely corrective action.

[0042] Example 1: Application under normal conditions

[0043] A representative saline-alkali soil in Xinjiang region is selected as the experimental field. After the land is prepared according to the above method, cotton seeds are sown. From the first day after sowing, short-time (about 10 minutes) phosphate solution drip irrigation is carried out in the morning and evening every day, and the amount of drip irrigation is about 0.1 liters per plant each time. At the same time, soil humidity sensors are used to detect soil humidity every three days, and the drip irrigation frequency and water amount are appropriately adjusted according to the actual needs. After about two weeks, it is observed that the cotton seedling growth of the experimental group is obviously better than that of the control group, showing better salt-alkali resistance and higher emergence rate.

[0044] Example 2: Application of slow-release phosphate particles

[0045] In another experiment, in addition to the above steps, slow-release phosphate particles are added at the time of sowing. These particles are uniformly distributed around the cotton seeds and covered with a thin layer of soil. The results show that the experimental group containing slow-release phosphate not only grows well in the early stage, but also maintains a high growth rate and healthy plant state throughout the seedling stage, showing more persistent salt-alkali resistance. In addition, due to the long-term effectiveness of slow-release phosphate, the need for later topdressing is reduced, further reducing labor intensity and cost.

[0046] Through the above specific embodiments, the present application provides an innovative phosphate application method, which significantly improves the survival ability and growth quality of cotton seedlings in saline-alkali environment by combining an intelligent controlled drip irrigation system, optimized drip head position and depth, slow-release phosphate, and a real-time online monitoring platform, bringing significant social and economic benefits and environmental protection benefits to the cotton planting industry.

[0047] It should be noted that, in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0048] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0049] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A method for improving the salt-alkali tolerance of cotton seedlings by applying phosphorus, characterized in that, Specifically comprising the following steps: S1. Through an intelligent controlled drip irrigation system, a small amount of phosphate solution is drip irrigated multiple times according to a preset schedule during the critical period from cotton sowing to true leaf unfolding; S2. The position and depth of the drip head of the drip irrigation system are optimized to ensure that the phosphate solution directly acts on the vicinity of the cotton root system to stimulate the root system to develop to the deep soil, thereby enhancing the salt and alkali resistance of the cotton seedling stage; S3. Slow-release phosphate particles or phosphate in a wrapped form are used, which slowly release phosphorus elements with water penetration, prolong the effective supply time, and ensure that the cotton can obtain stable phosphorus nutrition supply throughout the seedling stage; the slow-release phosphate particles are uniformly scattered around the cotton seeds and covered with a thin layer of soil to promote effective contact with the cotton root system and thereby improve the absorption efficiency of phosphorus elements; S4. An online monitoring platform is established to collect soil conductivity, pH value, and cotton growth condition information in real time, and dynamically adjust the phosphate application scheme through big data analysis and artificial intelligence algorithms to achieve optimal planting results.

2. The phosphate application method for improving the salt and alkali resistance of the cotton seedling stage according to claim 1, characterized in that: The phosphate solution contains an appropriate amount of phosphorus elements and other auxiliary components to meet the special nutritional needs of the cotton seedling stage and help reduce the impact of high-concentration salt in the soil on cotton seedlings.

3. The phosphate application method for improving the salt and alkali resistance of the cotton seedling stage according to claim 1, characterized in that: The intelligent controlled drip irrigation system combines real-time weather data, soil moisture sensors, and soil conductivity monitoring equipment to achieve precise control of drip irrigation time and water quantity to adapt to different climate conditions and soil conditions and ensure optimal water and fertilizer utilization efficiency.

4. The phosphate application method for improving the salt and alkali resistance of the cotton seedling stage according to claim 1, characterized in that: The slow-release phosphate particles can continuously release phosphorus elements for one month, providing long-term nutrient support while reducing the risk of environmental pollution caused by excessive fertilization.

5. The phosphate application method for improving the salt and alkali resistance of the cotton seedling stage according to claim 1, characterized in that: The online monitoring platform can automatically send alerts and propose measures when detecting abnormal conditions, such as excessively high soil conductivity, pH value deviating from the appropriate range, or abnormal cotton growth indicators, so that timely corrective actions can be taken.

6. The method for improving the salt-alkali tolerance of cotton seedlings according to claim 1, characterized in that: In the implementation process, the amount of phosphate solution for each drip irrigation is about 0.1 liters per plant, and the drip irrigation frequency is once in the morning and once in the evening for a short time, with a drip irrigation time of 10 minutes.

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