Rice seedling raising substrate produced from plant straws and beer active sludge and preparation method thereof

Abstract

The invention relates to the technical field of agricultural substrate production, and provides a rice seedling raising substrate produced from plant straws and beer active sludge and a preparation method thereof. The rice seedling raising substrate is prepared from 50%-70% of plant straws and 30%-50% of beer sludge through mixing and high-temperature aerobic fermentation, secondary fermentation and thorough decomposition, addition of an inorganic material into thoroughly decomposed organic materials, and acid regulating agent preparation in sequence. The substrate preparation method is shortin fermentation time, and maturity of the straws is high. An acid regulating technology ensures that the pH value of the rice seedling raising substrate is stable, so that the rice seedling raising substrate is suitable for rice seedling growth, is good in water retention and fertilizer retention, is comprehensive in nutrition, can meet nutrition needs of growing rice seedlings for 40 days, and greatly reduces load of a rice transplanter. The rice seedling raising substrate solves the problems that soil take of mechanical rice transplanting is difficult, land resources are wasted, environmental pollution is caused by direct discarding or combustion of waste biomass, and the like; and meanwhile, development and use of the rice seedling raising substrate are beneficial for promoting sustainable production of high-efficiency agriculture, so that rural income is increased.

Description

technical field [0001] The invention relates to the technical field of agricultural matrix production, in particular to a rice seedling-raising matrix produced from plant straw and beer activated sludge and a preparation method thereof. Background technique [0002] In recent years, with the expansion of rice planting area and the popularization of machine-transplanted dry seedling raising technology, the rice seedling raising substrate is particularly important. At present, the rice transplanter is matched with the standard hard disk seedling raising. In most areas, the soil is taken from the plow layer soil of the farmland, dried and crushed, and then added with nutrients and seedling raising agents to prepare nutritious soil, and then packed into trays and sowed to raise seedlings. However, nutrient soil releases nutrients quickly, and excessive nutrient content inhibits the growth of the seedling root system, resulting in a significantly smaller root length and root comp...

AI Technical Summary

Problems solved by technology

However, nutrient soil releases nutrients quickly, and excessive nutrient content inhibits the growth of the seedling root system, resulting in a significantly smaller root length and root compaction force than those raised in natural soil, and the use of nutrient soil for seedling cultivation has a large amount of soil, difficulty in obtaining soil, and prone to soil transmission. Diseases and herbicide residues affect seedling emergence, large nutrient soil capacity, high transportation costs, and increased mechanical workload. At the same time, it seriously damages the soil resources of my country's cultivated land and has a negative impact on the surrounding ecological environment, which is not conducive to large-scale and standardized production. The promotion of machine transplanting technology; while the inorganic seedling substrate formulated with inorganic mineral materials such as perlite, zeolite and vermiculite has been widely used in horticultural seedling cultivation, but it is rarely used in rice seedling cultivation, because the impact on seedling quality is uncertain. , and the cost is high, which is not conducive to the promotion of rice seedling raising substrate alone

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