Conditioner capable of improving acidic continuous-cropping obstacle soil and preparation method of conditioner

Abstract

The invention relates to the technical field of agricultural soil conservation and restoration, and particularly relates to a conditioner capable of improving acidic continuous-cropping obstacle soiland a preparation method of the conditioner. The preparation method comprises the following steps: mixing sepiolite, attapulgite and a microelement compound according to a certain ratio, uniformly carrying out stirring, then carrying out mixing with quicklime, water granulated slag powder and magnesium oxide, and uniformly carrying out stirring to obtain the conditioner capable of improving the acidic continuous-cropping obstacle soil. The conditioner disclosed by the invention is simple in raw material composition, wide in source and low in cost, and production cost can be well controlled. According to the invention, the acidic continuous-cropping obstacle soil is comprehensively improved through the following aspects of improving the pH value of the soil, disinfecting the soil, supplementing microelements, improving permeability and water retention performance of the soil, reducing the number of root knot nematodes, and the like, the effect is outstanding, and large-area popularization and use are facilitated.

Description

technical field [0001] The invention relates to the technical field of agricultural soil conservation and restoration, in particular to a conditioner capable of improving acidic continuous cropping obstacle soil and a preparation method thereof. Background technique [0002] Continuous cropping refers to the continuous planting of two or more crops of the same species or the same family of crops in the same field. After continuous cropping, even under normal cultivation and management measures, the growth of plants will become weak, and the yield and quality will decline. With the increase of people's demand for specific crop products, modern agriculture presents the characteristics of large-scale planting of a single crop, resulting in more and more serious obstacles to continuous cropping. Continuous cropping obstacles are mainly caused by the lack of nutrients, deterioration of soil physical and chemical properties, soil infectious diseases and insect pests and other rea...

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Problems solved by technology

[0004] (1) The composition of raw materials is complex, and some raw materials are relatively expensive or have narrow sources, which is not conducive to large-scale promotion and use;

[0005] (2) Under the condition of soil background and the use of a large amount of nitrogen and phosphorus fertilizers for many years, the soil of continuous cropping obstacles in the south is generally strongly acidic. Most of the current products do not consider improving the soil pH, and it is difficult to improve the acidic continuous cropping obstacle soil;

[0006] (3) The product design principle is mainly based on supplementing soil nutrients, which is too simple and difficult to solve the problem of continuous cropping obstacles caused by complex reasons;

[0007] (4) Among the plant parasite nematodes, the harm of root-knot nematode is the most extensive. In the processing of the above prior art, it is necessary to add additional chemical agents to prevent and control root-knot nematodes. These chemical agents not only increase the cost of soil treatment, but also seriously polluted the environment

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