Soil structure conditioner used for shajiang black soil and soil improving method

Abstract

The invention relates to a soil structure conditioner used for shajiang black soil. The soil structure conditioner is prepared from raw materials of biomass charcoal particles with particular diameter being 1-3mm, humic acid and/or humic acid salty powder which accounts for 2-5% of the weight of the biomass charcoal particles, ferric oxide powder which accounts for 2-5% of the weight of the biomass charcoal particles and water which accounts for 20-40% of the weight of the biomass charcoal particles. By adopting the soil structure conditioner to improve the shajiang black soil, the number of the macro aggregate of the soil can be improved, the permeability of the soil can be improved, the viscidity of the soil can be reduced, the tillage resistance can be reduced, the suitable tilling period can be prolonged, the specific retention of the soil can be increased, the fertility of the soil can be improved, and the crop yield can be increased; the number of carbon sequestration of the soil can also be increased. Meanwhile, the method is simple and easy to do, the cost is low, the effect is obvious and lasting, and the soil structure conditioner is easy to apply in a large area.

Description

technical field [0001] The invention relates to the technical field of agricultural soil fertilization, in particular to a soil structure improver for Shajiang black soil, and to a method for improving the agglomeration of Shajiang black soil by using the soil structure improver. Background technique [0002] Shajiang black soil is a typical low-yield field. Poor physical properties lead to low fertility. The specific manifestations are sticky texture, dry shrinkage and wet swelling, easy to drought and waterlogging, poor tillability, and barren soil. The pores are low, the capillary performance is weak, and the water conductivity is small. [0003] Soil aggregation is an important soil physical property, which affects soil air permeability, water storage capacity, tillability and plant root extension ability, and is an important factor in soil fertility. Shajiang black soil is difficult to naturally form aggregates, especially large aggregates larger than 1mm, so increasin...

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Problems solved by technology

[0005] The technologies related to this field disclosed in the prior art have the following defects and deficiencies: (1) The process is complicated, such as the modified waste zeolite in "a compound preparation for repairing and improving soil structure and its preparation method (publication number CN106085459A)" It is obtained after the waste catalytic cracking catalyst is calcined, pulverized, and loaded with acid; (2) the composition is complex, such as "a kind of biomass organic fertilizer for improving soil aggregates (public number CN105967783A)" involving flue-cured tobacco leaf powder, bentonite, polymer Aspartic acid, diammonium phosphate, wheat gluten, nickelous sulfate, ferric citrate, crop straw, Elodea, cellulase preparation, protease preparation, capers, water, etc. 13 kinds of ingredients, "one A Soil Conditioner and Preparation Method for Improving Soil Structure (Publication No. CN106085438A)” involves 11 ingredients; (3) There are many artificial chemicals, such as “An organic fertilizer for improving soil structure and its preparation method (Publication No. CN104140318A) "Use urea, ferrous sulfate, calcium hydrogen phosphate, sodium humate, gelatin, manganese sulfate, xanthan gum and other chemicals; (4) The composition of the soil has changed greatly, such as "using biomass ash to quickly improve soil aggregation In the "Publication No. CN103918375A)", 1200kg of biomass ash should be applied per mu, which greatly changes the composition of soil inorganic matter.

The above characteristics lead to limitations in product or technology application to varying degrees

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