CN-122004002-A - Granular soil planting method for purple sweet potatoes

Abstract

The invention provides a method for planting purple sweet potatoes by using granular soil, which comprises the following steps of S01, forming grooves, manually or mechanically forming a plurality of grooves with certain depth on soil of saline-alkali soil, wherein the grooves are arranged at intervals along a straight line direction or are arranged at intervals in a plum blossom shape, the cross section of each groove is in a regular shape, S02, forming an impermeable layer, preparing viscous soil slurry, uniformly smearing the viscous soil slurry on the inner wall of each groove to form the impermeable layer with certain thickness on the inner wall of each groove, S03, paving granular soil, and uniformly paving the granular soil in each groove to form planting soil.

Inventors

• CHEN WENZHANG
• JIANG MINGDONG
• WU GUANCHUN
• ZHU NINGXIN

Assignees

• 江苏锐昌生态科技有限公司

Dates

Publication Date

20260512

Application Date

20260120

Claims (8)

1. 1. The method for planting the purple sweet potatoes by using the granular soil is characterized by comprising the following steps of: step S01, grooves (1) are formed, a plurality of grooves (1) with certain depth are formed in the soil of the saline-alkali soil through manual or mechanical equipment, the grooves (1) are arranged at intervals along the linear direction or are arranged at intervals in a plum blossom shape, and the cross section of each groove (1) is in a regular shape; Step S02, forming an impermeable layer (2), namely preparing viscous soil slurry, and uniformly smearing the viscous soil slurry on the inner wall of the groove (1) so as to form the impermeable layer (2) with a certain thickness on the inner wall of the groove (1); And step S03, paving the granular soil (3), wherein the granular soil (3) is uniformly paved in the groove (1), and the granular soil (3) in the groove (1) forms planting soil.
2. 2. The method for planting purple sweet potato in bulk soil according to claim 1, wherein the cross-sectional shape of the trench (1) is large in upper side dimension and small in lower side dimension.
3. 3. The method for planting purple sweet potato granules according to claim 1, wherein the cross-section of the groove (1) is inverted trapezoid or semicircle.
4. 4. The method for planting purple sweet potato in the soil, as claimed in claim 1, wherein the depth of the groove (1) is determined according to the plants to be planted, the depth of the groove (1) is 20-50cm when the plants are vegetables, and the depth of the groove (1) is 50-150cm when the plants are shrubs or trees.
5. 5. The method for planting purple sweet potato granules according to claim 1, wherein the clay slurry is formed by mixing clay, an additive and water under stirring, and the additive is one or more of bentonite, gypsum and plant fiber.
6. 6. The method for purple sweet potato cultivation with granular soil of claim 5, wherein the addition amount of bentonite is less than 20% and the addition amount of gypsum is less than 10%.
7. 7. The method for planting purple sweet potato granules according to claim 1, wherein the thickness of the viscous soil slurry is 2-10mm.
8. 8. The method for planting purple sweet potato granules according to claim 1, wherein in step S01, the ditching operation is performed by using an agricultural ditching machine.

Description

Granular soil planting method for purple sweet potatoes Technical Field The invention relates to the technical field of granular soil planting, in particular to a granular soil planting method for purple sweet potatoes. Background Soil is used as a basic condition for plant growth, nutrition and moisture are provided for plant growth, and the nature of the soil directly determines whether the soil is suitable for plant growth. Soil unsuitable for plant growth, such as saline-alkali soil, contaminated soil, arid soil, desert, etc., is required to meet the plant growth demand by modifying the soil. In the existing technology for improving soil, chemical improvement (neutralization), flood irrigation (flushing), groundwater level reduction and other modes are generally adopted for improving the soil in saline-alkali soil, polluted soil and the like, and articles and cases for establishing reverse osmosis by clay are also available, such as "environmental engineering technical report" volume 12, 3 rd phase 2022, 5 th month "flexible vertical seepage prevention technology bentonite-clay sealing material seepage prevention performance research", which discloses a method for establishing vertical seepage prevention by bentonite clay. The prior art can play a certain improving role on soil, but has large investment, low persistence and high cost of re-improvement caused by easy re-pollution, and cannot be popularized and operated in a large area. Aggregate soil is typically composed of soil particles (sand, silt, clay) of varying sizes that are capable of forming stable soil aggregates. The aggregate structure of the aggregate soil contributes to an increase in the porosity of the soil. The granular soil has higher porosity and usually has larger macro holes and micropores, and the structure ensures that the granular soil has good water retention capacity and air permeability. Because of the aggregate structure, the aggregate soil can effectively retain water and is suitable for plant growth. The good air permeability of the granular soil enables the granular soil to drain water faster when the water is excessive, and prevents the root system from being lack of oxygen. For example, patent number CN202311299382.8 discloses an artificial soil with conjugated property and a preparation method thereof, namely, artificial aggregate soil, which is prepared by adding matrix fine materials and water into soil, modifying and granulating in a roller to obtain a conjugated artificial soil with stable aggregate structure, for example, patent number CN201510576711.8 discloses an artificial soil aggregate and a preparation method thereof, wherein the artificial soil aggregate is prepared by granulating artificial soil particles, the artificial soil particles comprise inorganic substances, organic substances and binders, uniformly mixing the inorganic substances, the organic substances and the binders to obtain a mixture, adding the mixture into a granulator, spraying water for granulation, and evaporating the water to obtain the artificial soil aggregate. The artificial soil aggregate has a soil aggregate structure, can replace soil as a plant cultivation substrate, is not easy to run off the substrate in the irrigation process, can coordinate contradictions of consumption and accumulation of substrate nutrients, can regulate the temperature of the cultivation substrate, and can improve the growth and elongation conditions of plant root systems. In the prior art, although the granular soil has the characteristic of being suitable for plant growth, the granular soil cannot be directly planted in areas such as saline-alkali soil, polluted land and the like, and has the limitation and narrow application range. Disclosure of Invention First, the technical problem to be solved In view of the above, the invention provides a method for planting the purple sweet potato by using the granular soil, in particular to planting the granular soil in saline-alkali soil and other areas, which can be well adapted to planting the purple sweet potato, has simple construction, low cost and good effect, does not cause secondary pollution to the soil, and is convenient for re-operation. (II) technical scheme In order to solve the technical problems, the invention provides a method for planting purple sweet potato by using granular soil, which comprises the following steps: Step S01, grooves are formed, a plurality of grooves with certain depth are formed in the soil of the saline-alkali soil through manual or mechanical equipment, the grooves are arranged at intervals along the linear direction or are arranged at intervals in a plum blossom shape, and the cross sections of the grooves are in a regular shape; Step S02, preparing viscous soil slurry, and uniformly smearing the viscous soil slurry on the inner wall of the groove so as to form an impermeable layer with a certain thickness on the inner wall of the groove; and S03, paving the granular soil,