Soil aggregates are a kind of soil structure formed by a plurality of soil single particles bonded together to form agglomerates. Create a good soil pellet structure to do:
Intensive cultivation, adding organic fertilizer. Tillage measures such as tillage, drying, freezing, smashing, etc. make the soil finely divided; deep ploughing combined with organic fertilizer improves soil permeability, while providing organic cement and promoting structure formation. Soils that have been ameliorated to a certain degree after a fertility improvement should avoid frequent tillage and should be protected by conservation.
Reasonable rotation. Crop root activity can promote the formation of soil aggregate structure, especially legume green manure, root system is developed, and long-term planting soil structure can be greatly improved. Facility planting soils can also be used to improve soil structure using non-legume and legume crop rotations, deep root crops and shallow root crop rotations.
Rational irrigation to prevent damage to the structure. It is required to choose a reasonable method, a reasonable amount of water, a reasonable number of times, and the like.
Improve soil acidity and alkalinity. The soil structure of peracid and alkali is generally poor. For example, the soil particles of alkaline earth are highly dispersed, muddy when wet, and hard when dry. Gypsum can be used for alkaline soils containing high sodium, and lime is used for acidic soils. Both have improved soil structure and promoted the formation of aggregates.
Apply a soil structure improver. According to the principle of agglomerate formation, plant residues, peat and lignite are used as raw materials to extract humus, cellulose and lignin polysaccharides. It is a high-molecular polymer artificially produced to simulate natural structural agents. These materials are good cements and have a modified structure for application to the soil.
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