Phosphorus application method for improving salt and alkali resistance of cotton in seedling stage

Abstract

The invention discloses a phosphorus application method for improving salt and alkali resistance of cotton in a seedling stage, which specifically comprises the following steps: S1, in a key period from cotton sowing to true leaf expansion, carrying out drip irrigation with a small amount of phosphate solution for many times; s2, the position of a water dropper and the drip irrigation depth of the drip irrigation system can ensure that a phosphate solution directly acts near a cotton root system to stimulate the root system to develop towards deep soil, so that the salt and alkali resistance of the cotton in the seedling stage is enhanced; s3, slow-release phosphate particles or phosphate in a wrapped form is used, and it is guaranteed that the cotton can obtain stable phosphorus nutrition supply in the whole seedling stage; and S4, establishing an online monitoring platform for collecting information such as soil conductivity, pH value, cotton growth condition and the like in real time. The classified garbage is subjected to solid-liquid separation, and the situation that normal use of the classification barrel is affected due to mutual influence and fermentation of the garbage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and in particular to a phosphorus application method for improving the salt-alkali resistance of cotton at the seedling stage. Background Art

[0002] As an important cash crop, cotton is widely cultivated and vital to the global textile industry. However, there are many challenges in growing cotton in saline-alkali land. Saline-alkali soil contains excessive soluble salts, which inhibit the germination of cotton seeds and the early growth of seedlings, resulting in low emergence rate, short plants, poor root development and ultimately reduced yield. Traditional solutions include using large amounts of fresh water to flush to reduce salt concentrations in the soil, or adding amendments such as lime to adjust soil pH, but these methods are not only costly and unstable, but may also lead to deterioration of soil structure and waste of water resources in the long run.

[0003] In addition, traditional fertilization methods such as broadcasting or furrow application are difficult to achieve precise control, which can easily cause uneven distribution and loss of phosphorus fertilizer and other nutrients, thereby affecting the absorption efficiency of cotton. Especially in the critical stage of cotton seedlings, because the root system of the seedlings has not yet fully developed and is very sensitive to environmental changes, more sophisticated and effective nutrient management strategies are needed to support their healthy growth. However, there is currently a lack of specific fertilization plans for cotton seedlings in saline-alkali land on the market, especially in terms of how to combine modern irrigation technology to optimize the application of phosphorus fertilizer. Therefore, there is an urgent need for a phosphorus application method that can improve the salt-alkali resistance of cotton seedlings. Summary of the invention

[0004] 1. Technical Problems Solved

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

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is: a method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings, which specifically comprises the following steps:

[0008] S1. Through the intelligently controlled drip irrigation system, a small amount of phosphate solution is dripped multiple times according to a preset schedule during the critical period from cotton sowing to the unfolding of true leaves;

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

[0010] S3. Use slow-release phosphate granules or phosphate in packaged form. These slow-release materials slowly release phosphorus as water penetrates, extending the effective supply time and ensuring that cotton can obtain a stable supply of phosphorus nutrition throughout the seedling stage;

[0011] S4. Establish an online monitoring platform to collect real-time information such as soil conductivity, pH value, and cotton growth status, and dynamically adjust the phosphorus application plan through big data analysis and artificial intelligence algorithms to achieve the best planting effect.

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

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

[0014] As an improvement, the slow-release phosphate particles can continuously release phosphorus within one 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 is able to automatically send alerts and suggest measures when abnormal conditions are detected, such as excessively high soil conductivity, pH values ​​deviating from the appropriate range, or abnormal cotton growth indicators, so that corrective actions can be taken in a timely manner.

[0016] As an improvement, during the implementation process, the drip irrigation volume of the phosphate solution is about 0.1 liter per plant, and the drip irrigation frequency is a short-term drip irrigation once in the early morning and evening every day, and the preferred drip irrigation time is 10 minutes.

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

[0018] 3. Beneficial Effects

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

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

[0021] 2. The intelligent control system of the phosphorus application method of the present invention accurately regulates the drip irrigation time and water volume according to real-time meteorological data, soil moisture, conductivity and other parameters, thereby avoiding waste of water resources and excessive use of fertilizers, reducing agricultural production costs, and reducing environmental pollution risks. The established online monitoring platform can collect and analyze soil and crop growth data in real time, dynamically adjust the phosphorus application plan through big data analysis and artificial intelligence algorithms, ensure the optimal planting effect, and respond to abnormal situations in a timely manner and propose effective corrective measures. The design of slow-release phosphate particles prolongs the effective supply time of phosphorus elements, reduces nutrient loss and environmental pollution problems caused by frequent fertilization or one-time large-scale fertilization, and is in line with the concept of sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The invention discloses a flow chart of the steps of a phosphorus application method for improving the salt-alkali resistance of cotton in the seedling stage. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Embodiment 1

[0025] like Figure 1 As shown, the present invention provides a method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings, which specifically comprises the following steps:

[0026] S1. Through the intelligently controlled drip irrigation system, a small amount of phosphate solution is dripped multiple times according to a preset schedule during the critical period from cotton sowing to the unfolding of true leaves;

[0027] S2. The dripper position and drip irrigation depth of the drip irrigation system are optimized to ensure that the phosphate solution directly acts near the cotton root system to stimulate the root system to develop into the deep soil layer, thereby enhancing the salt-alkali resistance of the cotton seedlings;

[0028] S3. Use slow-release phosphate granules or phosphate in packaged form. These slow-release materials slowly release phosphorus as water penetrates, extending the effective supply time and ensuring that cotton can obtain a stable supply of phosphorus nutrition throughout the seedling stage;

[0029] S4. Establish an online monitoring platform to collect real-time information such as soil conductivity, pH value, and cotton growth status, and dynamically adjust the phosphorus application plan through big data analysis and artificial intelligence algorithms to achieve the best planting effect.

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

[0031] The slow-release phosphate particles can continuously release phosphorus within one month, providing long-term nutrient support while reducing the risk of environmental pollution caused by excessive fertilization. The online monitoring platform can automatically send alarms and propose recommended measures when abnormal conditions are detected, such as excessively high soil conductivity, pH value deviating from the appropriate range, or abnormal cotton growth indicators, so as to take corrective actions in time. During the implementation process, the drip irrigation volume of the phosphate solution is about 0.1 liter per plant, and the drip irrigation frequency is a short-term drip irrigation once in the early morning and evening every day. The preferred drip irrigation time is 10 minutes. The slow-release phosphate particles are evenly spread around the cotton seeds and covered with a thin layer of soil to promote effective contact between them and the cotton root system, thereby improving the absorption efficiency of phosphorus.

[0032] It should be noted that in the method of the present invention, the intelligent control drip irrigation system belongs to the prior art, such as the Netafim intelligent drip irrigation system and the Valley VRI variable rate irrigation system, so the intelligent control drip irrigation system will not be described in detail here.

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

[0034] S1. Setup and operation of intelligent control drip irrigation system

[0035] During the critical period from cotton sowing to the unfolding of true leaves, the intelligently controlled Netafim smart drip irrigation system is installed and started. The system drips a small amount of phosphate solution multiple times according to a preset schedule and specific parameters (such as soil moisture, conductivity and meteorological data). Drip irrigation is carried out for a short time (about 10 minutes) in the early morning and evening every day, with each drip irrigation volume of about 0.1 liter per plant. In this way, phosphorus and other nutrients can be accurately delivered to the cotton root zone, avoiding the problem of excessive soil salt concentration caused by a one-time large-scale application.

[0036] S2. Optimize dripper position and depth

[0037] In order to allow the phosphate solution to act directly near the cotton root system, the drippers of the drip irrigation system are precisely arranged around the root zone of the plant and adjusted to the appropriate drip irrigation depth. This layout not only promotes the development of the root system into the deep soil and enhances the salt-alkali resistance of the cotton seedling stage, but also reduces water evaporation and improves the efficiency of water and fertilizer use. In addition, the design of the dripper also takes into account the changes in demand at different growth stages, and can flexibly adjust the drip irrigation position and depth without affecting the normal growth of crops.

[0038] S3. Application of sustained-release phosphates

[0039] When sowing, spread the slow-release phosphate granules or phosphate in packaged form evenly around the cotton seeds and cover them with a thin layer of soil. These slow-release materials can continuously release phosphorus for at least one month, providing long-term nutrient support and ensuring that cotton can obtain a stable supply of phosphorus nutrition throughout the seedling period. Compared with traditional fertilizers, slow-release phosphates effectively extend the effective supply time of phosphorus and reduce the risk of nutrient loss and environmental pollution caused by frequent fertilization or one-time large-scale fertilization.

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

[0041] Establish an online monitoring platform to collect real-time information such as soil conductivity, pH value, and cotton growth status. The platform is equipped with advanced sensors and data transmission equipment, which can upload data collected on-site to a cloud server for users to remotely access and manage. Through big data analysis and artificial intelligence algorithms, the platform can dynamically adjust the phosphorus application plan to ensure the optimal planting effect. For example, when it is detected that the soil conductivity is too high, the pH value deviates from the appropriate range, or the cotton growth indicators are abnormal, the platform will automatically send an alarm and propose recommended measures so that corrective actions can be taken in a timely manner.

[0042] Example 1: Application under normal conditions

[0043] A representative saline-alkali land in Xinjiang was selected as the experimental field. Cotton seeds were sown after land preparation according to the above method. Starting from the first day after sowing, a short-term (about 10 minutes) drip irrigation of phosphate solution was carried out in the early morning and evening every day, and the drip irrigation volume was about 0.1 liter per plant each time. At the same time, a soil moisture sensor was used to detect soil moisture every three days, and the drip irrigation frequency and water volume were adjusted appropriately according to actual needs. After about two weeks, it was observed that the growth of cotton seedlings in the experimental group was significantly better than that in 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 were added at the time of sowing. These particles were evenly spread around the cotton seeds and covered with a thin layer of soil. The results showed that the experimental group containing slow-release phosphate not only grew well in the early stage, but also maintained a high growth rate and healthy plant status throughout the seedling stage, showing a more lasting salt-alkali resistance effect. In addition, due to the long-term effectiveness of slow-release phosphate, the need for later topdressing was reduced, further reducing labor intensity and costs.

[0046] Through the above specific implementation methods, the present invention provides an innovative method of applying phosphorus, which significantly improves the survival ability and growth quality of cotton seedlings in saline-alkali environments by combining an intelligently controlled drip irrigation system, optimized dripper position and depth, slow-release phosphates, and a real-time online monitoring platform, thereby bringing significant social and economic benefits and environmental protection benefits to the cotton planting industry.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. 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 these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0049] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings, characterized in that: The specific steps include: S1. Through the intelligently controlled drip irrigation system, a small amount of phosphate solution is dripped multiple times according to a preset schedule during the critical period from cotton sowing to the unfolding of true leaves; S2. The dripper position and drip irrigation depth of the drip irrigation system are optimized to ensure that the phosphate solution directly acts near the cotton root system to stimulate the root system to develop into the deep soil, thereby enhancing the salt-alkali resistance of cotton seedlings; S3. Use slow-release phosphate granules or phosphate in packaged form. These slow-release materials slowly release phosphorus as water penetrates, extending the effective supply time and ensuring that cotton can obtain a stable supply of phosphorus nutrition throughout the seedling stage; S4. Establish an online monitoring platform to collect real-time information such as soil conductivity, pH value, and cotton growth status, and dynamically adjust the phosphorus application plan through big data analysis and artificial intelligence algorithms to achieve the best planting effect.

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

3. The method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings according to claim 1, characterized in that: The intelligent control system combines real-time meteorological data, soil moisture sensors and soil conductivity monitoring equipment to achieve precise control of drip irrigation time and water volume to adapt to different climatic conditions and soil conditions and ensure optimal water and fertilizer utilization efficiency.

4. The method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings according to claim 1, characterized in that: The slow-release phosphate granules can continuously release phosphorus within one month, providing long-term nutrient support while reducing the risk of environmental pollution caused by excessive fertilization.

5. The method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings according to claim 1, characterized in that: The online monitoring platform is able to automatically send alerts and suggest measures when abnormal conditions are detected, such as high soil conductivity, pH values ​​deviating from the appropriate range, or abnormal cotton growth indicators, so that corrective actions can be taken in a timely manner.

6. The method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings according to claim 1, characterized in that: During the implementation process, the drip irrigation volume of the phosphate solution is about 0.1 liter per plant, and the drip irrigation frequency is a short-term drip irrigation once in the early morning and evening every day, and the preferred drip irrigation time is 10 minutes.

7. The method for applying phosphorus to improve the salt-alkali resistance of cotton seedlings according to claim 1, characterized in that: The slow-release phosphate particles are evenly spread around the cotton seeds and covered with a thin layer of soil to promote effective contact between the slow-release phosphate particles and the cotton root system, thereby improving the absorption efficiency of phosphorus.

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