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CN-116855253-B - Soil conditioner and preparation method and application thereof

CN116855253BCN 116855253 BCN116855253 BCN 116855253BCN-116855253-B

Abstract

The invention provides a soil conditioner, a preparation method and application thereof, and belongs to the technical field of soil treatment. The invention provides a soil conditioner which comprises, by mass, 95% -97% of tobacco straw, 0.5% -2% of enteromorpha polysaccharide, 0.1% -0.5% of brown algae oligosaccharide and 1% -2.5% of bacillus powder. The soil conditioner provided by the invention can effectively improve the hardening of the coastal saline soil and enrich the ecological diversity of soil microorganisms through the synergistic effect of the components, and simultaneously improve the salt resistance and drought resistance of plants growing in the coastal saline soil, thereby promoting the growth and development of the plants. The results of the examples show that the soil conditioner provided by the invention can obviously improve the stem height and the dry weight of plants in the coastal saline soil, increase the number of plant side branches and promote the elongation of plant roots, and simultaneously can effectively improve the diversity of microorganisms in the coastal saline soil.

Inventors

  • YUAN YUAN
  • YOU XIANGWEI
  • LI YIQIANG
  • YU XUEYANG
  • Chu Depeng
  • YAO HUI
  • WANG XIAO

Assignees

  • 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所)

Dates

Publication Date
20260505
Application Date
20230711

Claims (6)

  1. 1. The application of the soil conditioner in improving the coastal saline soil comprises the following components in percentage by mass: 95% -97% of tobacco straw, 0.5% -2% of enteromorpha polysaccharide, 0.1% -0.5% of brown algae oligosaccharide and 1% -2.5% of bacillus powder; The bacillus comprises one or more than two of bacillus amyloliquefaciens, bacillus subtilis and bacillus bailii, wherein the total bacterial activity of the bacillus is more than or equal to 1 multiplied by 10 10 CFU/g; The bacillus amyloliquefaciens comprises bacillus amyloliquefaciens Cas02, wherein the preservation number of the bacillus amyloliquefaciens Cas02 is CGMCC NO.15514, the bacillus subtilis comprises bacillus subtilis Tpb55, the preservation number of the bacillus subtilis Tpb55 is CGMCC NO.2853, the bacillus bailii comprises bacillus bailii EM-1, and the preservation number of the bacillus bailii EM-1 is CGMCC NO.21131.
  2. 2. The use according to claim 1, characterized in that the soil conditioner comprises the following components in mass percent: 96.3% of tobacco straw, 1.0% of enteromorpha polysaccharide, 0.2% of brown algae oligosaccharide and 2.5% of bacillus powder.
  3. 3. The use according to claim 1 or 2, characterized in that the preparation method of the soil conditioner comprises the following steps: And crushing tobacco straws, and mixing with enteromorpha polysaccharide, brown algae oligosaccharide and bacillus powder to obtain the soil conditioner.
  4. 4. Use according to claim 3, characterized in that the crushed tobacco straw has a particle size <5cm.
  5. 5. The use according to claim 1, further comprising promoting plant growth in coastal saline soil, the plant comprising peanut.
  6. 6. The use according to claim 1, characterized in that the method of using the soil conditioner comprises: the soil conditioner is added into the coastal saline soil according to the mass percentage of 5% -20%.

Description

Soil conditioner and preparation method and application thereof Technical Field The invention belongs to the technical field of soil pollution treatment, and particularly relates to a soil conditioner and a preparation method and application thereof. Background The rapidly increased world population continuously causes the shortage of cultivated land resources, and the cultivated land needs to be increased, so that the grain supply safety is ensured. Coastal saline soil is one of the important marginal land types, and is considered as a potential reverse land resource for alleviating the shortage of cultivated land. Salinity is a major environmental factor limiting plant growth in coastal saline soil. Plant growth is often negatively affected by soil salinity due to osmotic stress. Soil salinization can also cause malnutrition, thereby negatively affecting plant nutrient absorption and slowing or inhibiting plant growth. Therefore, developing an effective method to mitigate the influence of salinity stress on plants is of great significance for the effective utilization of coastal saline soil. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide a soil conditioner which can improve the growth condition of plants in coastal saline soil and promote the growth of plants. The invention aims at realizing the following technical scheme: The invention provides a soil conditioner, which comprises the following components in percentage by mass: 95% -97% of tobacco straw, 0.5% -2% of enteromorpha polysaccharide, 0.1% -0.5% of brown algae oligosaccharide and 1% -2.5% of bacillus powder. Preferably, the bacillus comprises one or more than two of bacillus amyloliquefaciens, bacillus subtilis and bacillus bailii; the total bacterial activity of the bacillus is more than or equal to 1 multiplied by 10 10 CFU/g. Preferably, the bacillus amyloliquefaciens comprises bacillus amyloliquefaciens Cas02, wherein the preservation number of the bacillus amyloliquefaciens Cas02 is CGMCC NO.15514, the bacillus subtilis comprises bacillus subtilis Tpb55, the preservation number of the bacillus subtilis Tpb55 is CGMCC NO.2853, the bacillus belicus comprises bacillus belicus EM-1, and the preservation number of the bacillus belicus EM-1 is CGMCC NO.21131. Preferably, the soil conditioner comprises the following components in percentage by mass: 96.3% of tobacco straw, 1.0% of enteromorpha polysaccharide, 0.2% of brown algae oligosaccharide and 2.5% of bacillus powder. The invention provides a preparation method of the soil conditioner, which comprises the following steps: And crushing tobacco straws, and mixing with enteromorpha polysaccharide, brown algae oligosaccharide and bacillus powder to obtain the soil conditioner. Preferably, the crushed tobacco straw has a particle size of <5cm. The invention also provides an application of the soil conditioner prepared by the technical scheme or the preparation method of the technical scheme in improving coastal saline soil. The invention also provides an application of the soil conditioner prepared by the technical scheme or the preparation method of the technical scheme in promoting plant growth in coastal saline soil. The invention also provides a use method of the soil conditioner prepared by the technical scheme or the preparation method of the technical scheme, which comprises the following steps: the soil conditioner is added into the coastal saline soil according to the mass percentage of 5% -20%. The invention has the beneficial effects that: the invention provides a soil conditioner which comprises, by mass, 95% -97% of tobacco straw, 0.5% -2% of enteromorpha polysaccharide, 0.1% -0.5% of brown algae oligosaccharide and 1% -2.5% of bacillus powder. The tobacco straw in the soil conditioner provided by the invention can improve the chemical property of soil and provide nutrients for the soil, and can improve the physical properties of coastal saline soil, including soil aggregate structure, soil water retention, porosity and the like, and the use of enteromorpha polysaccharide and brown algae oligosaccharide can improve the salt resistance and drought resistance of plants, and promote the rhizosphere colonization capability of bacillus so that the plants can resist stress better. The soil conditioner provided by the invention can effectively improve the hardening of coastal saline soil, enrich the ecological diversity of soil microorganisms, improve the salt resistance and drought resistance of plants and further promote the growth and development of plants through the synergistic effect of the components. The example results show that the soil conditioner provided by the invention can obviously improve the stem height, the lateral branch number and the plant dry weight of plants in the coastal saline soil and promote the elongation of plant roots, and meanwhile, the soil conditioner can effectively improve the diversity of microorganisms in t