CN-122010625-A - Antibacterial slow-release water-saving type hole storage ball based on industrial hemp stems and preparation method thereof

Abstract

The invention discloses an antibacterial slow-release water-saving type cave storage ball based on industrial hemp stems and a preparation method thereof, wherein the cave storage ball comprises, by mass, 5-10 parts of industrial hemp stem powder, 30-50 parts of montmorillonite powder, 2-10 parts of activated carbon, 5-10 parts of water-retaining agent, 5-20 parts of water-soluble nitrogen-phosphorus-potassium compound fertilizer and 20-40 parts of water, and the cave storage ball is prepared by premixing the montmorillonite powder, the activated carbon and the water-soluble nitrogen-phosphorus-potassium compound fertilizer, mixing with the industrial hemp stem powder and the water-retaining agent for the second time, and granulating and forming. According to the invention, antibacterial substances such as cannabinol and the like naturally contained in the waste industrial cannabis sativa stalks are fully utilized, and the built-in plant health care function of the fertilizer block is endowed, so that soil-borne pathogenic bacteria such as fusarium, rhizoctonia solani and the like are effectively inhibited by the hole storage balls, the phenomena of root rot and seedling death of crops are reduced, the use of chemical pesticides is reduced, the problems of water retention, bacteriostasis and soil improvement of crops can be solved, waste is changed into valuable, and the method is suitable for popularization and application.

Inventors

• WANG ZUCHAO
• WANG XIULING
• SONG JIAXING
• PENG CHENGTAO
• Li Shanda
• YANG WEI
• LI MING
• CHANG JIAYU
• HAN YINUO
• LIU LIJUN
• SUN ZHE
• YANG YING
• You Jinyang
• GUAN XIN
• SU ZHIMIN
• Nadira Alemu River
• ZENG CAIYUN

Assignees

• 华中农业大学
• 石河子大学

Dates

Publication Date

20260512

Application Date

20260227

Claims (10)

1. 1. The antibacterial slow-release water-saving type hole storage ball based on the industrial hemp stems is characterized by comprising, by mass, 5-10 parts of industrial hemp stem powder, 30-50 parts of montmorillonite powder, 2-10 parts of activated carbon, 5-10 parts of a water-retaining agent, 5-20 parts of a water-soluble nitrogen-phosphorus-potassium compound fertilizer and 20-40 parts of water; After being premixed, the montmorillonite powder, the activated carbon and the water-soluble nitrogen-phosphorus-potassium compound fertilizer are mixed with the industrial hemp stalk powder and the water-retaining agent for the second time and are formed by granulation, and the antibacterial slow-release water-saving type hole storage ball based on the industrial hemp stalk is prepared.
2. 2. The antibacterial slow-release water-saving type hole storage ball based on industrial hemp stems, as claimed in claim 1, is characterized by comprising the following preparation raw materials, by mass, 5 parts of industrial hemp stem powder, 42 parts of montmorillonite powder, 4 parts of activated carbon, 8 parts of a water-retaining agent, 8 parts of a water-soluble nitrogen-phosphorus-potassium compound fertilizer and 33 parts of water.
3. 3. The antibacterial slow-release water-saving type hole storage ball based on industrial hemp stems according to claim 1, wherein the industrial hemp stem powder is powdery industrial hemp stems with average particle size of 0.004-0.021 cm after being crushed.
4. 4. The industrial hemp stalk-based bacteriostatic slow-release water-saving type hole-storage ball according to claim 1, wherein the water-retaining agent comprises at least one of a polyacrylamide type water-retaining agent and a polyacrylate type water-retaining agent.
5. 5. An industrial cannabis stalk based bacteriostatic sustained-release water-saving pit-storage pellet as claimed in claim 1, wherein said water-soluble nitrogen-phosphorus-potassium compound fertilizer comprises at least one type of water-soluble compound fertilizer of 15-15-15、20-20-20、18-18-18、30-10-10、25-5-10、28-6-6、10-30-20、15-30-15、10-40-10、10-10-30、15-10-25、20-10-20.
6. 6. A method for preparing the antibacterial slow-release water-saving type cave storage ball based on the industrial hemp stems as claimed in any one of claims 1 to 5, which is characterized by comprising the following steps: S1, preparing a water-soluble nitrogen, phosphorus and potassium compound fertilizer, and premixing montmorillonite powder, activated carbon and the water-soluble nitrogen, phosphorus and potassium compound fertilizer according to a proportion to obtain a premix; s2, secondarily mixing the premix with industrial hemp stalk powder and a water-retaining agent according to a proportion to obtain a blend; S3, continuously spraying water to the blend, stirring until the materials are agglomerated, and then compacting and forming under the pressure of 20-50 MPa to obtain a spherical blank; S4, drying the spherical blank body to constant weight at 50-70 ℃, and cooling to obtain the antibacterial slow-release water-saving type cave storage ball based on the industrial hemp stems.
7. 7. The method according to claim 6, wherein in the step S1, the pre-mixing process is performed at a dry mixing speed of 300-600 rpm for 10-20 min.
8. 8. The method according to claim 6, wherein in the step S2, the secondary mixing is performed under the process conditions that the dry mixing speed is 50-150 rpm and the dry mixing time is 15-30 min.
9. 9. The use of an industrial hemp stalk-based bacteriostatic slow-release water-saving type hole storage sphere according to any one of claims 1-5 in the preparation of solid fertilizer.
10. 10. The use according to claim 9, characterized in that 1-2 of said bacteriostatic slow-release water-saving plug based on industrial hemp stems are placed near the root system in the transplanting or growing period of the crop.

Description

Antibacterial slow-release water-saving type hole storage ball based on industrial hemp stems and preparation method thereof Technical Field The invention relates to the field of agricultural technology and solid fertilizer, in particular to an antibacterial slow-release water-saving type hole storage ball based on industrial hemp stems and a preparation method thereof. Background At present, in arid and semiarid regions, such as Xinjiang in China, the agricultural production faces serious challenges of water resource shortage for a long time. The conventional irrigation and fertilization mode (such as broadcasting after flood irrigation) has low water utilization rate, and the fertilizer is easy to run off or volatilize along with water, so that resource waste and environmental pollution are caused. In addition, soil-borne diseases caused by continuous cropping obstacles are also increasing. At present, various slow release fertilizers and solid fertilizer bars/blocks are available, but the functions of the slow release fertilizers are single, the slow release fertilizers mainly provide nutrients, and the problems of water retention, bacteriostasis and soil improvement are difficult to solve at the same time. On the other hand, the industrial hemp (e.g., hemp) industry produces a large amount of byproducts such as stalks after harvesting fibers and seeds, and these byproducts currently lack a high value-added utilization way except for a small amount of compost or waste. Research shows that the industrial hemp stems contain natural antibacterial substances such as cannabinols, terpenes and the like, but the direct application of the industrial hemp stems in the agricultural field has not been effectively developed. Therefore, an innovative agricultural technology product which can integrate multiple functions of resource circulation, water saving, drought resistance, nutrient slow release, disease prevention and control and the like is urgently needed. Disclosure of Invention The invention aims to provide an antibacterial slow-release water-saving type hole storage ball based on industrial hemp stems and a preparation method thereof, which are used for solving the problem that the prior art lacks an effective means for simultaneously solving the problems of water retention, bacteriostasis and soil improvement of crops and effectively utilizing waste industrial hemp stems. In order to solve the technical problems, the first solution provided by the invention is a bacteriostatic slow-release water-saving type hole storage ball based on industrial hemp stems, which comprises, by mass, 5-10 parts of industrial hemp stem powder, 30-50 parts of montmorillonite powder, 2-10 parts of activated carbon, 5-10 parts of water-retaining agent, 5-20 parts of water-soluble nitrogen-phosphorus-potassium compound fertilizer and 20-40 parts of water; after being premixed, montmorillonite powder, active carbon and water-soluble nitrogen-phosphorus-potassium compound fertilizer are mixed with industrial hemp stalk powder and water-retaining agent for the second time and are granulated and formed, and the antibacterial slow-release water-saving type hole storage ball based on the industrial hemp stalk is prepared. In some embodiments, the antibacterial slow-release water-saving type cave storage ball based on the industrial hemp stems comprises, by mass, 5 parts of industrial hemp stem powder, 42 parts of montmorillonite powder, 4 parts of activated carbon, 8 parts of water-retaining agent, 8 parts of water-soluble nitrogen-phosphorus-potassium compound fertilizer and 33 parts of water. In some embodiments, the industrial hemp stalk powder is a powdery industrial hemp stalk with an average particle size of 0.004-0.021 cm after being crushed. In some embodiments, the water retaining agent comprises at least one of a polyacrylamide-type water retaining agent, a polyacrylate-type water retaining agent. In some embodiments, the water-soluble nitrogen-phosphorus-potassium compound fertilizer comprises at least one type of water-soluble compound fertilizer of 15-15-15、20-20-20、18-18-18、30-10-10、25-5-10、28-6-6、10-30-20、15-30-15、10-40-10、10-10-30、15-10-25、20-10-20. In order to solve the technical problems, the second solution provided by the invention is a preparation method of the antibacterial slow-release water-saving type hole storage ball based on the industrial hemp stems in the first solution, which comprises the following steps: S1, preparing a water-soluble nitrogen, phosphorus and potassium compound fertilizer, and premixing montmorillonite powder, activated carbon and the water-soluble nitrogen, phosphorus and potassium compound fertilizer according to a proportion to obtain a premix; S2, secondary mixing is carried out on the premix, the industrial hemp stalk powder and the water-retaining agent according to the proportion, and a blend is obtained; S3, continuously spraying water to the blend, stirring until the materials a