Main material for constructing tillage layer of newly rectified cultivated land, construction method of tillage layer and application

Abstract

The invention relates to a main material for constructing a tillage layer of newly rectified cultivated land, a construction method of the tillage layer and application. The main material for constructing the tillage layer of the newly rectified cultivated land comprises peat materials, active organic materials and biological activators; the peat materials include herbal peat, woody peat and / or humus soil; the active organic materials are natural plant organic materials rich in polysaccharide / organic acid / amino sugar; the biological activators comprise amino acid bacteria and bacillus which promote degradation of all the active organic materials to form soil organic matter, facilitate formation of a good agglomeration structure of the soil and activate rapid circulation of the system. Thetillage layer is rapidly constructed by engineering, a traditional mode is subverted, a lengthy cultivation and ripening process formed by the high-quality tillage layer can be simplified into one-time engineering operation, geotechnical cultivation of the newly rectified cultivated land is improved in a short time, and crop yields and benefits are continuously ensured.

Description

technical field [0001] The present invention relates to the fields of land consolidation and agriculture, and in particular to a main material for constructing plow layers of newly reconditioned cultivated land, a method for constructing plow layers and applications thereof. Background technique [0002] China has a vast territory, but with a large population base, the arable area per capita is not sufficient. As of the end of 2015, the actual arable land area in the country was 2.025 billion mu, including cultivated land that is difficult to use stably and gradually adjusted according to the needs of national policies. The amount of cultivated land suitable for stable use is 1.865 billion mu, and the basic farmland protection area is 1.56 billion mu Above, the per capita arable land area is 1.48 mu, which is less than 2 / 5 of the world's per capita arable land area. [0003] my country's arable land resources are more people and less land, so that my country's agricultural ...

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Problems solved by technology

These measures often focus on external conditions such as land leveling, irrigation and drainage, field roads, farmland protection, and ecological environment maintenance, and it is difficult to improve soil organic matter and improve the background quality of the cultivated layer.

[0004] In addition, with my country's urbanization construction and massive road construction, a lot of high-quality land resources have been occupied. According to the national management regulations of 1.8 billion mu of land red line, the amount of farmland occupied by construction needs to be replenished, but the farmland for compensation is usually in mountainous areas. In newly reclaimed areas such as wasteland, tidal flats, etc., because the newly rehabilitated cultivated land has not undergone a lengthy process of cultivation and maturation, the land is barren and the crop yield is low, resulting in the phenomenon of "advantaging the superior and supplementing the inferior".

However, to cultivate the above-mentioned land into mature high-quality cultivated land, either shovel and transport the occupied high-yield cultivated land (cultivated layer) (that is, stripping the topsoil), which requires a lot of manpower and material resources; or carry out fertilization and transformation according to traditional methods. However, this requires a large amount of bio-fertilizer or chemical fertilizer to be cultivated in the tillage layer for five, ten or even twenty years

For example, the results of the long-term fertilization experiment on the barren fluvo-aquic soil in the Huanghuai Sea show that to achieve the key element indicators of the fertile cultivated layer, it is necessary to apply 600 kg / mu of dry-based organic fertilizer or 1 ton / mu of fresh organic fertilizer (equivalent to 1.5 times the full amount of straw returned to the field) for 20 years; other technical measures such as crop planting, fertilization and cultivation can accelerate the accumulation of soil organic matter, but the shortest period is 10 years

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